Loading...
HomeMy WebLinkAbout19053_Point_Five_VIMS_20160512 May 12, 2016 Ms. Susan Poissant Director of Development Hart Lyman Companies 7075 Manlius Center Road East Syracuse, New York 13057 RE: Vapor Intrusion Mitigation System (VIMS) Design and Specifications – Vapor Block Plus 20 Berkeley Boulevard Retail Project Goldsboro, North Carolina SPEC-15380 Dear Ms. Poissant: The John R. McAdams Company, Inc. (McAdams) is pleased to present the following design and specifications for a vapor intrusion mitigation system (VIMS) for the Berkeley Boulevard Retail Project site located in Goldsboro, North Carolina. The VIMS consists of a VaporBlock® Plus™ 20 (VB+20) barrier with a passive sub-slab depressurization system will be incorporated into the construction of the commercial building. If you should have any questions or comments during your review of this design, please feel free to contact us at (919) 361-5000 at your convenience. Sincerely, THE JOHN R. McADAMS COMPANY, INC. Jeffrey B. Tyburski, PG Michael Sanchez, PE Director, Environmental Services Principal Engineer /Attachments Berkeley Boulevard Retail Project Goldsboro, North Carolina May 12, 2016 Prepared For: Ms. Susan Poissant Hart Lyman Companies 7075 Manlius Center Road East Syracuse, New York 13057 Prepared By: The John R. McAdams Co., Inc. Project Number: SPEC-15380 Michael J.E. Sanchez, PE, LEED® AP Principal Engineer M CA DA M S 2905 MERIDIAN PARKWAY DURHAM, NORTH CAROLINA 27713 TABLE OF CONTENTS 1.0 GENERAL INFORMATION ........................................................................................................... 1 1.1 Introduction ................................................................................................................................... 1 1.2 VIMS Design Overview................................................................................................................ 2 2.0 DESIGN BASIS ................................................................................................................................ 2 3.0 QUALITY ASSURANCE/QUALITY CONTROL ......................................................................... 4 4.0 POST-CONSTRUCTION/PRE-OCCUPANCY .............................................................................. 4 4.2 Reporting....................................................................................................................................... 4 DRAWINGS VIMS-1.0 .......................................................................................... Foundation Plan with VIMS Layout VIMS-1.1 ................................................................. Foundation Details and Sections with VIMS Design APPENDICES Appendix A Sub-Slab Vapor Barrier and Vapor Design Specification - Vapor Block Plus 20 Appendix B Vapor Vent Riser Installation Appendix C Perforated PVC Pipe – Slotted Well Screen, Example Supplier Literature 1 1.0 GENERAL INFORMATION 1.1 Introduction The subject site includes two parcels of land with the street addresses of 501 and 503 N. Berkeley Boulevard in Goldsboro, Wayne County, North Carolina. The first parcel includes the former Cashwell/Hasty Mart #23 Exxon Station located at 501 N. Berkeley Boulevard at the northeast intersection of N. Berkeley Boulevard and Cashwell Drive. The second parcel includes the former Deacon Jones pre-owned car sales facility which was located at 503 N. Berkeley Boulevard. The subject site was certified into the North Carolina Brownfields Program (NCBP) on September 23, 2015 and is identified as Brownfields Project Number 19053-15-096. The site is currently scheduled for redevelopment that includes a new slab-on grade commercial building. There are on and off-site environmental concerns that create a potential vapor intrusion (VI) risk for the proposed building. This Vapor Intrusion Mitigation System (VIMS) design and specification provides the details for the installation of a passive sub-slab vent/depressurization barrier system in the new building to address potential VI risk. On-site concerns include the release of petroleum from the current Hasty Mart #23 gasoline station (North Carolina Division of Waste Management (NCDWM) UST Incident No. 38538). The UST system is owned and operated by the Wayne Oil Company. The most current site assessment information regarding the release of petroleum from the site is documented in the Limited Site Assessment (LSA) Report (Phase I) report dated June 4, 2015 prepared by Terraquest. Terraquest also prepared a Site Check Report, dated December 30, 2014. Based on this information, NCDWM provided a Notice of No Further Action in a letter dated July 8, 2015. A Notice of Residual Petroleum (NRP) has been filed with the Register of Deeds noting that residual soil contamination is present at the site in excess of residential maximum soil contaminant concentrations (MSCCs) and residual groundwater contamination meets the cleanup requirements for a low-risk site but exceeds the North Carolina groundwater quality standards. The residual petroleum contamination will be in close proximity to and underlie the proposed building which creates a potential VI risk. Off-site concerns include a known release of dry-cleaning solvent from the former Penny Cleaners located at 433 N. Berkeley Boulevard (DSCA Site I.D. 96-0002). Previous assessment activities have been conducted by the North Carolina Dry-Cleaning Solvent Cleanup Act (DCSA) Program to assess a release of dry-cleaning solvent from this dry-cleaning release site. This information indicates that dry-cleaning solvent is present in groundwater beneath the site which creates a potential VI risk. In summary, both the residual petroleum as reported under the NRP and the residual chlorinated solvents from the former Penny Cleaners are potential vapor intrusion sources. As a proactive measure, a VIMS will be installed during construction of the new building to mitigate potential vapor intrusion (VI) risk. McAdams was contracted to prepare a design for the VIMS. This design package includes the following: • A signature report, providing an introduction, background and an overview of the basis of design, and • The design specification for the VIMS as detailed in Appendices A through C. VIMS Design and Specifications – Vapor Block Plus 20 May 12, 2016 Berkeley Boulevard Retail Project Goldsboro, North Carolina 2 1.2 VIMS Design Overview The VIMS includes a VaporBlock® Plus™ 20 (VB+20) barrier with a passive sub-slab vent/depressurization system. VB+20 is a 20-mil thickness multi-layered polyethylene and ethylene vinyl alcohol (EVOH) resin barrier material that provides chemical resistance to the chemicals of concern (COCs) at the site. The barrier can be installed across the entire footprint of the building beneath the floor slab. The passive sub-slab depressurization system includes horizontal runs of sub-slab perforated 4-inch diameter Schedule 40 PVC or SDR 35 vent pipe within a gravel/crushed stone bed, which is connected to a vertical vent riser constructed of solid 6-inch diameter Schedule 40 PVC pipe. The VIMS consists of two zones leading to two vertical riser, extending from the sub-slab to the roof. The vent riser pipes, where visible and accessible, will be clearly marked to indicate that they are associated with a vapor barrier and venting system (e.g., Soil Vent Pipe). The VIMS also has the capability to mitigate potential sub-slab moisture and radon concerns. The proposed system will initially be installed as a passive system. If necessary, the system can be converted to an active system by connecting the vertical risers at the roof termination with in- line blowers for active depressurization of the sub-slab. This will require 120-volt, 20-amp electrical service connections in the vicinity of the vent risers at the roof location to accommodate the blower fan. The type of blower fans can be specified after slab installation, based on diagnostic pilot testing. Note that this system design specification does not address waterproofing. 2.0 DESIGN BASIS This report documents the design basis, design, planned installation and quality assurance/quality control program, and a conceptual overview of post-construction/pre-occupancy testing and reporting for the VIMS. Elements of the VIMS design include the following: • Preparatory tasks • VIMS installation • Vent riser and monitoring locations • Roof top ducting • Sealing requirements • Drawings identifying the location and layout of the vapor barrier, sub-slab vent/depressurization system, and typical cross sections of the vapor barrier and tie-in’s to major foundation structural components; • Specification details for VIMS installation procedures; • QA/QC oversight procedures; and • System effectiveness testing. This document was prepared as a summary narrative of the VIMS elements. Attached to this summary document are McAdams’ design specifications for the vent system layout, installation instructions, manufacturer literature detailing the VB+20 barrier product and supplemental information regarding VIMS system components. Site design drawings prepared by Finley Design PA and Stewart were modified by McAdams to provide the layout of the sub-slab piping system and cross sectional details to provide typical tie-in of the VB+20 to the building foundation. McAdams has prepared this design to incorporate current industry standards and the design will be consistent with others approved by the NCBP. The installation is to occur during construction VIMS Design and Specifications – Vapor Block Plus 20 May 12, 2016 Berkeley Boulevard Retail Project Goldsboro, North Carolina 3 activities involving the slab foundation. The proposed system will generally include the following, as detailed in the attached specifications: • The VIMS will encompass two (2) horizontal vent systems across the footprint of the building as shown in VIMS-1.0 and will be installed within an approximate six (6)-inch thick crushed (#57) stone layer surrounding the horizontal piping three feet each side. The stone layer will taper to four (4)-inch thick beginning approximately three (3)-feet away from each side of the horizontal piping to support the overlying floor slab. The horizontal piping will include 4-inch diameter perforated and solid Schedule 40 PVC or SDR 35 pipe. • As shown in VIMS-1.0 and VIMS-1.1, and described in Appendix B and C, plenum boxes will also be installed within the six (6)-inch stone gravel layer to enhance air movement through the vent system. The six (6)-inch stone layer will extend three (3)-feet away from all four sides of the plenum boxes and taper to four (4)-inch thick stone. The plenum boxes consist of hollow (2- or 3-core) concrete blocks turned on their sides to make a soil gas collection plenum measuring approximately four feet square. The inside of the box is free of gravel and the top of the box is covered with metal or pressure treated wood decking (as approved by the structural engineer for the project). The horizontal 4-inch perforated pipe is inserted into the hollow cores of the cinder blocks, with open terminations approximately 3-inches inside the box. • Installation of an impermeable vapor barrier system employing VB+20 on top of the stone layer and immediately beneath the building floor slabs. This will include taped seams (white VaporBond Plus tape only) and vertical penetrations (i.e. plumbing and electrical) in conjunction with the use of a Stego mastic (or equivalent) sealant. • Caulking of floor slab expansion joints as an additional measure to seal off interior building space from sub-slab conditions. • The horizontal vent piping will be connected to two six (6)-inch diameter solid Schedule 40 PVC vertical risers centrally located within each zone on the floor plan as shown in VIMS-1.0. A typical 6-inch vertical riser is estimated to have a capacity to accommodate sub-slab depressurization of up to 15,000 square feet of sub-slab area (i.e. under active operation). Therefore, the two vertical risers will be more than sufficient to accommodate the approximate 18,496 square foot floor plan (Note the SDR 35 pipe is not an option for the vertical riser). • The vent riser will extend from the sub-slab to the roof and will be exhausted at the roof. • Active venting for sub-slab depressurization using radon-type blower/fans attached to the vertical risers on the roof of the building is an option but will not be installed unless pre-occupancy testing indicates the need for active VIMS operation. • Pending NCBP approval of a separate VIMS pre-occupancy testing work plan, each of the two vent zones will be fitted with up to four (4) permanent brass vapor pins through the concrete floor at floor slab locations that will be determined based on the final VIMS design and installation oversight. • The VIMS design provides conservatism and redundancy to effectively mitigate the vapor intrusion exposure pathway, while providing flexibility for potential changes that could occur over the life of the building. The specifications for the VB+20 barrier and vent systems and their general installation methods are included in Appendices A and B of this report. Also included are vendor specifications and drawings showing the configuration and details of the barrier and vent installation methods in and around penetrations, footings, terminations and other features of the building’s foundation and foot print. VIMS Design and Specifications – Vapor Block Plus 20 May 12, 2016 Berkeley Boulevard Retail Project Goldsboro, North Carolina 4 3.0 QUALITY ASSURANCE/QUALITY CONTROL Typically, the vent portion of the VIMS is installed by the plumbing contractor and the VB+20 barrier system is installed by the concrete contractor. Specialized contractors are not required to maintain product warranty; however, quality assurance measures are necessary to maintain system integrity during construction activities on the site. Oversight is usually conducted by qualified personnel under the supervision of the PE who designed the VIMS. Based on our experience, the VIMS will likely be installed in sections based on the layout of the grade foundation system and construction schedule. This will require two site visits for each section during construction. This will include one site visit for final inspection of the vent system and one site visit for final inspection of the vapor barrier immediately before the concrete pour for the floor slab. One additional site visit will also be required to inspect caulking at expansion joints, including along the walls-edge of the concrete floor slab as this is an integral portion of the VIMS system. It is our understanding that Daniels & Daniels will schedule VIMS oversight visits and McAdams will assist Daniels & Daniels to limit the number and duration of site visits to provide a cost savings while meeting the overall objective of reasonably documenting that the VIMS was installed in general accordance with the VIMS design. 4.0 POST-CONSTRUCTION/PRE-OCCUPANCY McAdams will conduct post construction/pre-occupancy testing. This protocol will be detailed in future separate correspondence as it is established through coordination with the NCBP under a separate approved work plan that will be based on comments from their review and approval of this VIMS design and specification. 4.2 Reporting Upon completion of post-construction/pre-occupancy testing of the VIMS, McAdams will provide a report summarizing the findings. We will use the data to provide an opinion of whether the VIMS was delivered in a condition consistent with the VIMS design. This report will be submitted to the NCBP for their review and approval. Note that review and approval of pre-occupancy testing results is required by the NCBP as a condition for building occupancy. The need for pre-occupancy testing and NCBP for building occupancy should be accounted for in the construction schedule. DRAWINGS VIMS-1.0 Foundation Plan with VIMS Layout VIMS-1.1 Foundation Details and Sections with VIMS Design ##### "#$%&'()**)+,--)%.*/ .0,*)%"11 2'-),345%67%#891$ "%;$;/=>1/>8?1 &,2@%-,7)6.)%A7B$1?$ C2DE)7*%A.$?1?=/11 "#$%&%'(& )"'*#+,- ./,#- ."/0(123- +4#+5#.123- 6786 9;=>1(+14?@1986 &ABCD166= .AEFGHI1(+1J996K LBMND@1.DOBPM11QG )1R6RS7RKS;J== L1R6RS7RKS;66K "#$%&'(&)#*$+,-./-01 &6T= ]00 *W+ >X=KX68 2 D E Y D N D @ 1 2 N Z [T U V N [O \ V E V I 1 ( + VIMS-1.0 DETAIL NOTES: 1) THE PURPOSE OF THIS SHEET IS FOR VIMS DESIGN ONLY. 2) ALL STRUCTURAL DESIGN SHOWN IS BY OTHERS AND HAS NOT BEEN ALTERED. 3) WATERPROOFING DESIGN BY OTHERS. "#$%&'()**)+,--)%.*/ .0,*)%"11 2'-),345%67%#891$ "%;$;/=>1/>8?1 &,2@%-,7)6.)%A7B$1?$ C2DE)7*%A.$?1?=/11 "#$%&%'(& )"'*#+,- ./,#- ."/0(123- +4#+5#.123- 6786 9;=>1(+14?@1986 &ABCD166= .AEFGHI1(+1J996K LBMND@1.DOBPM11QG )1R6RS7RKS;J== L1R6RS7RKS;66K "#$%&'(&)#*$+,-./-01 &KT= ]00 *W+ >X=KX68 2 D E Y D N D @ 1 2 N Z [T U V N [O \ V E V I 1 ( + @'2R .,a) 2),6&D27)@)6* S)'74%M'(T M,I*4 -)63*4 I)C*4 *DC HD**D@ &" "FB1G "FB1G $FB1G 6' S?TA? &? ?FB1G ?FB1G $FB1G 6' S9TA? VB+20 TERMINATE VB+20 1/4-IN BELOW TOP OF SLAB. VB+20 SECURE VB+20 W/ 2-SIDED TAPE AND FASTEN W/ EXPANSION JOINT. CAULKING TO BE PROVIDED OVER EXPANSION JOINT PER SPECIFICATIONS. VB+20 VB+20 SEAL VB+20 AROUND REBAR SECURE VB+20 W/ 2-SIDED TAPE AND FASTEN W/ EXPANSION JOINT. CAULKING TO BE PROVIDED OVER EXPANSION JOINT PER SPECIFICATIONS. TERMINATE VB+20 1/4-IN BELOW TOP OF SLAB. VB+20 TERMINATE VB+20 1/4-IN BELOW TOP OF SLAB. VB+20 SECURE VB+20 W/ 2-SIDED TAPE AND FASTEN W/ EXPANSION JOINT. CAULKING TO BE PROVIDED OVER EXPANSION JOINT PER SPECIFICATIONS. DETAIL NOTES: 1) THE PURPOSE OF THIS SHEET IS FOR VIMS DESIGN ONLY. 2) ALL STRUCTURAL DESIGN SHOWN IS BY OTHERS AND HAS NOT BEEN ALTERED. 3) WATERPROOFING DESIGN BY OTHERS. VIMS-1.1 SECURE VB+20 W/ 2- SIDED TAPE AND FASTEN W/ EXPANSION JOINT. CAULKING TO BE PROVIDED OVER EXPANSION JOINT PER SPECIFICATIONS. APPENDIX A 1 APPENDIX A SUB-SLAB VAPOR BARRIER AND VAPOR VENT DESIGN SPECIFICATION – VAPOR BLOCK PLUS 20 SUB-SLAB VAPOR BARRIER AND VAPOR VENT (VAPOR BLOCK PLUS 20) PART 1 – GENERAL 1.1 SUMMARY A. Products Supplied Under This Section: 1. Vapor Barrier, Seam Tape, and Pipe Boots 2. Schedule 40 or SDR 35 PVC Piping for Vent System 3. Vapor Block Plus 20 (as described in following sections) 4. Collection Plenum Boxes 1.2 REFERENCES A. American Society for Testing and Materials (ASTM) 1. ASTM E 1745 Standard Specification for Plastic Water Vapor Retarders Used in Contact with Soil Or Granular Fill Under Concrete Slabs 2. ASTM E 154 Standard Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs 3. ASTM E 96 Standard Test Methods for Water Vapor Transmission of Materials 4. ASTM E 1643 Standard Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs 5. ASTM D 1434 Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting B. Radon Diffusion Coefficient K124/02/95 C. American Concrete Institute (ACI) 1. ACI 302.1R-6 & 7 Section 3.2.3 Vapor Retarder D. Brodhead, Bill, “Proposed New Jersey Radon Resistant School Construction Code”, presented at 15th Annual International Radon Symposium in San Diego, California, 2005. 1.3 SUBMITTALS A. Testing/Specifications 1. Laboratory test results showing compliance with ASTM & ACI Standards. 2. Vapor barrier Manufacturer’s samples, literature. 3. Vapor barrier Manufacturer’s installation instructions for placement, seaming and penetration repair instructions. PART 2 – PRODUCTS 2.1 MATERIALS A. Vapor barrier must have all of the following qualities: Specification 2 Vapor Vent Riser Specification Berkeley Boulevard – Goldsboro, North Carolina 1. Permeance of less than 0.01 Perms [grains/(ft2 · hr · inHg)] as tested in accordance with ASTM E 1745 Section 7. 2. Other performance criteria: a. Strength: ASTM E 1745 Class A. b. Thickness: 20 mils c. VOC resistant B. Vapor barrier products: Basis of Design: VaporBlock® Plus™ 20 by Raven Industries www.ravenefd.com – 800-635-3456 C. Vent Pipe Materials – Sub-Slab/Horizontal Locations 1. 4-inch diameter perforated Schedule 40 or SDR 35 PVC piping for Vent System beneath barrier at sub-slab horizontal locations (e.g., slotted well screen – see attached Johnson PVC Well Screens and Accessories specification as example) 2. 4-inch diameter solid Schedule 40 or SDR 35 PVC piping and fittings at subslab horizontal locations for Vent System across footings, at tees, couplings, elbows, and adapters to connect to 6-inch diameter solid Schedule 40 PVC piping at vertical vent riser locations (Note SDR pipe is not an option for the vertical riser) 3. Collection plenum boxes constructed of concrete blocks at vent termination locations per plan drawings 4. For vertical vent riser details, see Appendix B. 2.2 ACCESSORIES A. Seam Tape 1. 4” VaporBond Plus Tape (White Tape only) by Raven Industries, 800-635-3456 2. 2” VaporBoot Tape by Raven Industries, 800-635-3456 3. 2” Butyl Seal Tape by Raven Industries, 800-635-3456 or other 2” wide double-sided reinforced butyl rubber seaming tape. B. Pipe Boots 1. Raven VaporBoot Plus pipe boots or other manufacturer’s supplied pipe boot system. C. Sealants, Cleaners 1. PVC cleaner and cement 2. Polyurethane elastometric sealant (caulk) 3. Stego Mastic (or equivalent) PART 3 – EXECUTION 3.1 PREPARATION A. Ensure that base material preparation is approved by Architect or Geotechnical Engineer. 1. Level and compact base material. 2. All concrete slabs that come in contact with the ground shall be laid over a gas permeable material made up of a minimum 6-inch thick uniform Specification 3 Vapor Vent Riser Specification Berkeley Boulevard – Goldsboro, North Carolina layer of clean #57 ¾-inch gravel aggregate1 that extends 3-feet on each side of the 4-inch horizontal piping. Stone layer more than 3-feet from each side of horizontal piping will taper to 4-inch thickness. 3. The gravel placement shall be phased so that that the 4-inch horizontal piping is roughly centered within the 6-inch stone layer. 4. Once the vent pipe is placed, the remaining gravel can be added so as to completely cover the vent pipe layout with approximately one inch of gas permeable material above the horizontal piping (i.e., minimum gravel bed thickness for vent pipe system of 6 inches1) 5. Seal all joints or penetrations in slab or other floor systems and below-grade walls, which will not be accessible at time of final inspection. 6. Sealing of all pathways between the sub-slab soil and the building interior after the slab is poured is critical to the VIMS effectiveness and building energy/cost efficiency. This step is particularly important to a. avoid leakage of conditioned air within the building into the VIMS beneath the slab (e.g., energy loss), and conversely, b. to avoid conditions in bathrooms and commercial spaces where exhaust fans can effect negative pressurization indoors (e.g., overcoming sub-slab depressurization that allows sub-surface contaminants to enter the building). 7. Stub-outs to be provided where indicated on drawings, so as to connect with vent system above and below slab. 8. All opening, gaps, and joints in floor and wall assemblies in contact soil or gaps around pipes, toilets, or drains penetrating these assemblies shall be filled or closed with materials that provide a permanent air-tight seal. 9. Seal large openings with non-shrink mortar, grouts, or expanding foam materials and smaller gaps with an elastomeric joint sealant. 3.2 SUB-SLAB PERFORATED VENT PIPE INSTALLATION A. Perforated pipe utilized under the slab and vapor barrier to provide a passive mitigation vent system and shall be installed as per the following: 1. Perforated 4-inch diameter Schedule 40 or SDR 35 PVC 2. Covered/sleeved with a geotextile cloth if fines not removed from surrounding gravel aggregate. 3. Shall be covered by a minimum of 1 inch of clean #57 ¾-inch gravel aggregate (for 6-inch minimum permeable vent layer). 4. Perforated 4-inch diameter pipe shall be solidly connected and sealed to through-slab risers via 4-inch to 6-inch diameter adapters/reducers connected to 6-inch diameter 90-degree elbows (Schedule 40 PVC). 5. Any through-slab riser stub-outs shall be solid 6-inch diameter Schedule 40 PVC. 6. Through-slab riser stub-outs to be labeled “SOIL VENT PIPE” or the like, and temporarily capped to keep out soil, concrete, etc. 7. Pipe sections shall pass through interior footings, grade-beams, or other barriers via solid, non-perforated 4-inch diameter Schedule 40 or SDR 35 PVC. 1 Note: A gravel thickness of no less than 6 inches may be substituted, with a 1-inch layer of gravel above and below the horizontal vent pipe, but only upon the written recommendation and approval of the project architect and/or structural engineer that this will be acceptable for the slab support. Specification 4 Vapor Vent Riser Specification Berkeley Boulevard – Goldsboro, North Carolina 8. All pipe joints and connections to be permanently sealed with adhesives as specified by the manufacturer of the pipe material so as to be gas tight. 9. Threaded pipe is desirable, as an alternate, and may be substituted as applicable. 10. 3/8-inch dimeter holes shall be drilled through the bottom of the pipe at (at least)10-foot intervals and at low spots to drain moisture from the piping. 3.3 COLLECTION PLENUM BOX CONSTRUCTION A. At locations specified in plans, construct soil gas collection plenum boxes for the horizontal vent pipe terminations and connections as follows: 1. Plenum boxes shall be fabricated by placing 8x8x16-inch concrete blocks (or equivalent) on their sides so that the hollow core sections are parallel to the slab and a square shape layout of 3 blocks by 2 blocks is formed. 2. The outside dimensions of each plenum box shall be approximately 48-inches by 48-inches, which will result in approximate inside dimensions of 32-inches by 32-inches. 3. The perforated 4-inch diameter vent pipe shall be cut to terminate inside the plenum box approximately 3 inches inside of the inner block edge (i.e., the pipe is not to be run continuous through the plenum box). The face shell of the concrete block may be cut as needed to accommodate the vent pipe connections. 4. The top of each plenum box shall be covered with a 4-foot square section of 1-inch plywood or metal siding as approved by the project design team/structural engineer. 3.4 VAPOR BARRIER INSTALLATION A. Install vapor barrier in accordance with manufacturer’s instructions and ASTM E 1643. 1. Unroll VB+20 with the longest dimension parallel with the direction of the pour and pull open all folds to full width. 2. For a monolithic pour, lap VB+20 under/into footings, leaving sufficient membrane to extend up to the exterior foundation wall. 3. Overlap joints a minimum of 12 inches and seal in-between overlap with 2-Sided Raven Butyl Seal tape. 4. Center the 4” wide Raven VaporBond Plus Tape (white tape only) over the seal overlap. 5. Seal around sewer pipes, support columns or any other penetration with Raven VaporBoot Plus pipe boots or at minimum a combination of VaporBlock Plus and VaporBond Plus Tape (white tape only) or VaporBoot Tape, creating a monolithic membrane between the surface of the slab and moisture sources below as well as at the slab perimeter. 6. Overlap barrier and seal with VaporBond Plus Tape (white tape only). 7. Seal all penetrations (including pipes) per manufacturer’s instructions. 8. No penetration of the vapor barrier is allowed except for reinforcing steel and permanent utilities. 9. Repair damaged areas by cutting patches of VaporBlock Plus 20, overlapping damaged area 12 inches and taping all four sides with 2-Sided Raven Butyl Seal tape and VaporBond Plus Tape (white tape only). Specification 5 Vapor Vent Riser Specification Berkeley Boulevard – Goldsboro, North Carolina 10. Attachment of VB+20 to waterproofed walls follows the same methodology as for attachment to foundation walls, using 2-Sided Raven Butyl Seal tape to form a complete seal at the footing wall connection. Prime concrete surfaces and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 12” and seal the overlap with Raven VaporBond Tape (white tape only). Product Part # VaporBlock Plus 20 .............................................................. VBP 20 Product Description VaporBlock® Plus™ 20 is a seven-layer co-extruded barrier made from state-of-the-art polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission. VaporBlock® Plus™ 20 is a highly resilient underslab / vertical wall barrier designed to restrict naturally occurring gases such as radon and/or methane from migrating through the ground and concrete slab. VaporBlock® Plus™ 20 is more than 100 times less permeable than typical high-performance polyethylene vapor retarders against Methane, Radon and other harmful VOCs. VaporBlock® Plus™ 20 is one of the most effective underslab gas barriers in the building industry today far exceeding ASTM E-1745 (Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs) Class A, B and C requirements. Available in a 20 (Class A) mil thicknesses designed to meet the most stringent requirements. VaporBlock® Plus™ 20 is produced within the strict guidelines of our ISO 9001:2008 Certified Management System. Product Use VaporBlock® Plus™ 20 resists gas and moisture migration into the building envelop when properly installed to provide protection from toxic/harmful chemicals. It can be installed as part of a passive or active control system extending across the entire building including floors, walls and crawl spaces. When installed as a passive system it is recommended to also include a ventilated system with sump(s) that could be converted to an active control system with properly designed ventilation fans. VaporBlock® Plus™ 20 works to protect your flooring and other moisture-sensitive furnishings in the building’s interior from moisture and water vapor migration, greatly reducing condensation, mold and degradation. Size & Packaging VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to maximize coverage. All rolls are folded on heavy-duty cores for ease in handling and installation. Other custom sizes with factory welded seams are available based on minimum volume requirements. Installation instructions and ASTM E-1745 classifications accompany each roll. VaporBlock® plus™VBp20 APPlICATIOnS Radon Barrier Methane Barrier VOC Barrier Under-Slab Vapor Retarder Foundation Wall Vapor Retarder Under-Slab Vapor / Gas Barrier Under-Slab Vapor/Gas Retarder © 2012 RAVEn InDUSTRIES InC. All rights reserved.Site / Foundation 02/12/14 VBp20 VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission. VaporBlock® plus™ placement All instructions on architectural or structural drawings should be reviewed and followed. Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located on our website. ASTM E-1643 also provides general installation information for vapor retarders. VAPORBLOCK PLUS 20 PROPERTIES TEST METHOD IMPERIAL METRIC AppeArAnce White/Gold Thickness, nominAl 20 mil 0.51 mm WeighT 102 lbs/MSF 498 g/m² clAssificATion ASTM E 1745 CLASS A, B & C Tensile sTrengTh lbf/in (n/cm) AverAge md & Td (neW mATeriAl) ASTM E 154 Section 9 (D-882) 58 lbf 102 N impAcT resisTAnce ASTM D 1709 2600 g mAximum use TemperATure 180° F 82° C minimum use TemperATure -70° F -57° C permeAnce (neW mATeriAl) ASTM E 154 Section 7 ASTM E 96 Procedure B 0.0098 Perms grains/(ft²·hr·in·Hg) 0.0064 Perms g/(24hr·m²·mm Hg) (AfTer condiTioning) perms (sAme meAsuremenT As Above permeAnce) ASTM E 154 Section 8, E96 Section 11, E96 Section 12, E96 Section 13, E96 0.0079 0.0079 0.0097 0.0113 0.0052 0.0052 0.0064 0.0074 WvTr ASTM E 96 Procedure B 0.0040 grains/hr-ft² 0.0028 gm/hr-m² rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s meThAne permeAnce ASTM D 1434 < 1.7 x 10-10 m2/d• atm 0.32 GTR (Gas Transmission Rate) ml/m²•D•ATM Under-Slab Vapor / Gas Barrier VaporBlock® plus™ Engineered Films DivisionP.O. Box 5107Sioux Falls, SD 57117-5107Ph: (605) 335-0174 • Fx: (605) 331-0333 Toll Free: 800-635-3456Email: efdsales@ravenind.comwww.ravenefd.com1/11 EFD 1125 Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com Scan QR Code to download current technical data sheets via the Raven website.Site / Foundation 02/12/14 INSTALLATION GUIDELINES Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement. Fig. 2: VaporBlock Plus Overlap Joint Sealing Methods Fig. 1: VaporBlock Plus Overlaping Roll-out Method Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction. • When VaporBlock Plus gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required. • If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed. Materials List: VaporBlock® Plus™ Vapor / Gas Barrier VaporBond Plus 4” Foil Seaming Tape Butyl Seal 2-Sided Tape VaporBoot Plus Pipe Boots 12/Box (recommended) VaporBoot Tape (optional) VAPORBLOCK® PLUS™ PLACEMENT 1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate. 1.2. Unroll VaporBlock Plus running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1) 1.3. Lap VaporBlock Plus over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with Raven VaporBond Tape. When used as a gas Page 1 of 4 To p o r i g i n a l d i a g r a m a n d f i g u r e # 1 w e r e r e p r i n t e d w i t h p e r m i s s i o n b y t h e P o r t l a n d C e m e n t A s s o c i a t i o n . Re f e r e n c e : K a n a r e , H o w a r d M . , C o n c r e t e F l o o r s a n d M o i s t u r e , E B 11 9 , P o r t l a n d C e m e n t A s s o c i a t i o n , S k o k i e , I l l i n o i s , a n d N a t i o n a l R e a d y M i x e d C o n c r e t e A s s o c i a t i o n , S i l v e r S p r i n g , M a r y l a n d , U S A , 2 0 0 8 , 1 7 6 p a g e s . Site / Foundation 02/12/14 barrier, overlap joints a minimum of 12” and seal in-between overlap with 2-sided Raven Butyl Seal Tape. Then seal with VaporBond Plus Tape centered on the overlap seam. (Fig. 2) 1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock Plus membrane. Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5). Pipe boots may also be fabricated from excess VaporBlock Plus membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporBond Plus Tape (sold separately). Reminder Note: All holes or penetrations through the membrane will need a patch cut to a minimum of 12” from the opening in all directions. To fabricate pipe boots from VaporBlock Plus excess material (see Fig. 4 & 6 for A-F): A) Cut a square large enough to overlap 12” in all directions. B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe. C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended) D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases. E) Use VaporBoot Tape or VaporBond Plus Tape to secure the boot to the pipe. VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal. VaporBond Plus Tape (option) - Tape completely around pipe overlapping the to get a tight seal against the pipe. F) Complete the process by taping over the boot perimeter edge with VaporBond Plus Tape to create a monolithic membrane between the surface of the slab and gas/ moisture sources below and at the slab perimeter. (Fig. 4 & 6) Preformed Pipe Boot Square Material Pipe Boot Fig. 3 SINGLE PENETRATION PIPE BOOT INSTALLATION Fig. 5 Fig. 6 1. Cut a square of VaporBlock Plus barrier to extend at least 12” from the pipe in all directions. 2. Cut four to eight slices about 3/8” less than the diameter of the pipe. 5. Use Raven VaporBoot or VaporBond Plus Tape and overlap 1” at the seam. 4. Tape over the boot perimeter edge with VaporBond Plus Tape. 1. Cut out one of the preformed boot steps (1” to 4”). 2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape. 3. Force the boot over pipe and press tape firmly in place. 4. Use VaporBond Plus Tape to secure boot to the pipe.5. Tape around entire boot edge with VaporBond Plus Tape. VaporBoot Flexible Tapeor VaporBond Plus 4” TapeVaporBond Plus 4” Tape Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape VaporBlock PlusMaterial VaporBond Plus 4” Tape Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape VaporBoot PlusPreformed Boot 12”(minimum) 3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape. Fig. 4 Page 2 of 4 Or i g i n a l f i g u r e # 4 d i a g r a m i s r e p r i n t e d w i t h p e r m i s s i o n b y t h e P or t l a n d C e m e n t A s s o c i a t i o n . Re f e r e n c e : K a n a r e , H o w a r d M . , C o n c r e t e F l o o r s a n d M o i s t u r e , E B 11 9 , P o r t l a n d C e m e n t A s s o c i a t i o n , S k o k i e , I l l i n o i s , a n d N a t i o n a l R e a d y M i x e d C o n c r e t e A s s o c i a t i o n , S i l v e r S p r i n g , M a r y l a n d , U S A , 2 0 0 8 , 1 7 6 p a g e s . Site / Foundation 02/12/14 1.5. For side-by-side multiple penetrations; A) Cut a patch large enough to overlap 12” in all directions (Fig. 7) of penetrations. B) Mark where to cut openings and cut four to eight slices about 3/8” less than the diameter of the penetration for each. C) Slide patch material over penetration to achieve a tight fit. D) Once patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers. (Fig. 8) E) After applying Raven Butyl Seal Tape between the patch and membrane, tape around each of the penetrations and the patch with VaporBond Plus 4” foil tape. (Fig. 9) For additional protection apply an acceptable polyurethane elastomeric sealant around the penetrations. (Fig. 10) 1.6. Holes or openings through VaporBlock Plus are to be repaired by cutting a piece of VaporBlock Plus 12” larger in all directions from the opening. Seal the patch to the barrier with 2-sided Raven Butyl Seal Tape and seal the edges of the patch with VaporBond Plus Tape. Fig. 7 Fig. 8 Fig. 9 Fig. 10 MULTIPLE PENETRATION PIPE BOOT INSTALLATION Fig. 6 Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.) Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers. After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporBond Plus 4” foil Tape For additional protection apply an acceptable polyurethane elastomeric sealant around the penetrations. VaporBond Plus 4” Tape VaporBond Plus 4” Tape Raven Butyl Seal 2-Sided Tape Raven Butyl Seal 2-Sided Tape Page 3 of 4Site / Foundation 02/12/14 Engineered Films DivisionP.O. Box 5107Sioux Falls, SD 57117-5107Ph: (605) 335-0174 • Fx: (605) 331-0333 Toll Free: 800-635-3456Email: efdsales@ravenind.comwww.VaporBlockPlus.com8/13 EFD 1127 Note: To the best of our knowledge, these are typical installation procedures and are intended as guidelines only. Architectural or structural drawings must be reviewed and followed as well as on a project basis. NO WARRANTIES ARE MADE AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS OR GUIDELINES REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and we disclaim all liability for resulting loss or damage. © 2013 RAVEN INDUSTRIES INC. All rights reserved. VAPORBLOCK® PLUS™ PROTECTION 2.1. When installing reinforcing steel and utilities, in addition to the placement of concrete, take precaution to protect VaporBlock Plus. Carelessness during installation can damage the most puncture–resistant membrane. Sheets of plywood cushioned with geotextile fabric temporarily placed on VaporBlock Plus provide for additional protection in high traffic areas including concrete buggies. 2.2. Use only brick-type or chair-type reinforcing bar supports to protect VaporBlock Plus from puncture. 2.3. Avoid driving stakes through VaporBlock Plus. If this cannot be avoided, each individual hole must be repaired per section 1.6. 2.4. If a cushion or blotter layer is required in the design between VaporBlock Plus and the slab, additional care should be given if sharp crushed rock is used. Washed rock will provide less chance of damage during placement. Care must be taken to protect blotter layer from precipitation before concrete is placed. VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site as gold/white in color printed in black ink with the following logo and classification listing: Page 4 of 4 VaporBlock® Plus™ Gas & Moisture Barrier Site / Foundation 02/12/14 APPENDIX B APPENDIX B VAPOR VENT RISER INSTALLATION PART 1 – GENERAL 1.1 SUMMARY A. Products Supplied Under This Section: 1. Schedule 40 PVC Piping for Vent System (6-inch diameter Solid) 2. PVC piping cleaner and cement 2.1 VENT RISER INSTALLATION A. Multiple continuous, sealed vent riser pipes shall run from sealed connections to the sub-slab perforated piping within the aggregate to a point outside the building at the roof, and be installed as follows: 1. Vent riser pipes shall be installed so that any rainwater or condensation drains downward into the ground beneath the slab and soil-gas-retarder membrane. 2. Vent riser piping to be 6-inch diameter solid schedule 40 PVC. 3. All pipe joints and connections to be permanently sealed with adhesives as specified by the manufacturer of the pipe material so as to be gas tight. 4. Pipe cleaners, solvents and cements shall not contain site contaminants of concern (COCs, i.e., not petroleum and/or chlorinated solvent-based), as approved by the engineer. 5. Point of exhaust venting discharge shall meet all of the following requirements: a. Be a minimum of 12 inches above the roofline to bottom of fan unit, (if a fan is to be installed). b. Be 10 feet or more above ground level, if horizontally discharged from side of building. c. Be 10 feet or more from any operable window, chimney, door, or other openings into conditioned spaces of building that is less than 2 feet below the exhaust point. d. The riser rooftop exhausts shall be located as far as practical from fresh air intakes and no closer than allowed by code. e. Wherever possible, the exhaust point should be positioned above the highest eave of the building and as close to the roof ridge-line as possible. f. Vent riser pipe terminations shall be capped with a 6 inch diameter rain cap. 6. Where installation requires pipes or ducts to penetrate a firewall or other fire resistance rated wall or floor, penetrations shall be protected in accordance with applicable building, mechanical, and electrical codes. 7. Vent riser pipes shall be fastened to the structure of the building with hangers, strapping, or other supports that will adequately secure the vent pipe material. To prevent blockage of air flow into the bottom of vent pipes, these pipes shall be supported or secured in a permanent manner that prevents their downward movement into the soil beneath aggregate layer under the slab that deforms and/or blocks any sub-slab vent piping. 8. Vent riser piping shall be within the buildings thermal envelope as much as is reasonably possible. Specification 2 Vapor Vent Riser Installation Berkeley Boulevard – Goldsboro, North Carolina 9. To provide power for the active venting system blowers, if they are to be installed, 120-volt, 20-amp circuits terminated in an approved electrical junction box shall be installed within five (5) feet of the location on the roof of each vent riser pipe. 10. All blowers or other positively pressurized portions of vent pipe shall be located outside habitable space of the building. 11. Blower type, size, selection, etc. will be based on diagnostic pilot testing of the vent system following completion of the slab pour. These tasks will be completed by the designer and/or his duly authorized representative. APPENDIX C PVC Well sCreens, droP PiPe, Casing and aCCessories Site / Foundation 02/12/14 2 Johnson sCreens® PVC Well ProduCts - Cost effeCtiVe, Versatile, enVironmentally friendly and safe to handle PVC Well sCreens, droP PiPe and Casing: an eConomiCal solution Johnson screens offers a full line of PVC Vee-Wire® well screens, slotted well screens, casings and accessories that provide an economical, long-lasting design option when compared to steel. effiCient Johnson Screens PVC screens, casings and fittings are ideal for any PVC well. The flexibility to specify and design a wide variety of slot openings, instead of choosing from two or three standard sizes, ensures a more efficient well. long Well life Johnson Screens PVC well products are carefully designed and manufactured to required industry standards, with tolerances that meet or exceed any other supplier in the industry, resulting in a long lasting well requiring less maintenance. Better design To ensure the most efficient use of time and a quality well, Johnson Screens offers the most experienced and attentive customer service and technical professionals in the business, providing customers with quick and accurate information and support. on time and under Budget Johnson Screens extensive distributor network means that rapid delivery is available anywhere in the world, so that wells can be completed on time and under budget. ProduCt sPeCifiCations for additional information on products seen in this catalog, such as technical information, product use and installation recommendations, please contact us or visit our website at www.johnsonscreens.com. PVC handling and storage PVC pipe should be handled properly to ensure adequate performance. for appropriate guidelines and procedures for all Johnson screens PVC products, please contact us directly. Did You Know? Johnson Screens provides more than just quality products; we back them up with technical support that is like having your own in-house engineering team. For screen or casing size recommendations, installation suggestions, lab analysis and more, contact us today at www.johnsonscreens.com. Site / Foundation 02/12/14 3 PVC is the material of ChoiCe for a groWing numBer of aPPliCations PVC offers a combination of economy, light-weight design and flexibility that makes it a cost-effective solution for: • Water wells • Water monitoring wells • environmental • Soil vapor extraction • Sparging - air or oxygen • Bioremediation • Free product recovery • Groundwater extraction • drainage and dewatering • leachate collection • mining PVC is also used when sampling for heavy metals, since it will not leach metals or contaminate the samples. it also has the advantage over steel when encountering corrosive fluids. Among Johnson Screens fabrication options are: • PVC casing and well screens from 0.50 to 18 in. (13 to 400 mm) diameter • Plain end, flush joint, NPT or custom threaded • Threaded products supplied in laying lengths • screen openings from 0.005 to 0.50 in. (0.01 to 13 mm) • standard and custom lengths up to 20 ft (6.1 m) Johnson sCreens - enVironmentally friendly, enVironmentally aWare the environmental and remediation markets require special manufacturing techniques and processes. Johnson screens manufactures a complete line of PVC well products suited for groundwater monitoring and remediation. With the same quality and reliability that accompanies all Johnson screens products, the environmental and remediation product line includes well screens, casings and accessories. To meet industry requirements, Johnson screens provides the following: • no printing on screen or pipe • Cleaned and bagged • flush thread connections • o-ring pre-installed • Box or bulk package options available Site / Foundation 02/12/14 4 the CritiCal differenCe in Johnson sCreens® PVC sCreens is oPen area JohnSon ScreenS PVC Vee-Wire® Well sCreens Commonly used in shallow wells, Johnson Screens sonic welded PVC Vee-Wire screens present higher open area for given slot than any other non- metallic screen available. more economical than metal screens, PVC Vee-Wire screens resist corrosion from salts and gases commonly found in either salt or fresh water, and are resistant to acid treatments commonly used to clean wells. PVC screens are furnished with standard flush threads or plain ends for connecting to standard PVC fittings. sizes range from 1.25 to 8 in. (32 to 203 mm), and screen slot size can be as small as 0.005 in. (0.13 mm) and up, per customer specifications. end fittings PVC screens are supplied with standard flush threads or plain ends for connecting to standard PVC fittings. Better Well deVeloPment It is important to remove fines from the filter pack or formation to increase the well’s porosity, which enhances well efficiency. For this to be effectively done, development energy must pass through the screen with minimum interference. this requires high open area. more oPen area Johnson Screens PVC Vee-Wire screens have more open area per foot than any other non-metallic screen available. this allows more water to enter at lower velocities, which reduces turbidity and enables a more representative sample to be collected. JohnSon ScreenS PVC Vee-PaCk™ Pre-PaCked sCreens Some subsurface conditions, such as heaving, caving, silty sand make conventional gravel pack placement difficult or impossible. the solution is Johnson Screens Vee-Pack screen. the Vee-Pack contains an integral gravel pack that is held in place between two concentric screens. This assembly is then installed in a single operation. standard features of the Vee-Pack include: • Smaller borehole • slot spacing as small as 0.008 in. (0.203) mm • standard 2 and 4 in. (51 and 102 mm) sizes available • reduces cutting disposal • Factory-installed re-sieved silica sand filter pack is uniform, without voids • fine-grade pack allows sediment- free sampling • high screen open area • sonic-welded construction eliminates solvents which can affect sample integrity • Schedule 40 and 80 flush threads available • thread-on points ease installation in heaving sands Site / Foundation 02/12/14 5 Johnson sCreens® PVC slotted Well sCreens Johnson screens manufactures slotted PVC well screens for a variety of applications, in sizes ranging from 0.5 to 18 in. (13 to 400 mm), and lengths up to 20 ft (6.1 m). slot sizes can range from 0.006 to 0.500 in. (0.015 - 12.7 mm), in multiple row patterns and spacings. Slotted screens are available in standard 40 and 80 schedule PVC, as well as special schedules upon request. Johnson screens offers technical support in screen design use and installation. maintaining peak well pumping efficiencies can be tricky; Johnson screens support team can provide recommendations to ensure the slotted screen performs at full capacity. applications for slotted screens include: • Water well • environmental • dewatering • suction header • leachate • air sparging • Soil vapor extraction • Other specialty applications JohnSon ScreenS PVC fittings and aCCessories Johnson screens offers a wide range of fittings and accessories for use with PVC well screens, casings and drop pipes. items include: • male plugs • female caps • male and female points • Male and female lifting bails • male nPt and female fJt adaptors • slip points • Slip bottoms • slip caps • slip couplings • hdPe hollow stem auger plugs • morrison locking plugs • stainless steel centralizers • PVC surge blocks • grouting caps • steel well protectors Site / Foundation 02/12/14 6 Johnson sCreens® PVC droP PiPe the JohnSon ScreenS shur-align® nPt droP PiPe’s Patented design helPs you quiCkly and safely install your next suBmersiBle PumP the Shur-Align drop pipe has the longest inlet bell in the industry, funneling and aligning the pipe before the threads engage. this eliminates cross threading and speeds up the assembly process. no coupling is required, reducing the possibility of leaks and assembly time. there is just one thread makeup versus the two required with standard couplings. Johnson screens is known around the world for top quality products and service; the Shur-Align drop pipe is no exception, delivering clear and safe drinking water. The entire joint - not just the threaded bell - is formed from schedule 120 PVC for maximum strength and durability, making installation of submersible pumps quicker and simpler. advantages of the Shur-Align drop pipe include: • no couplings • simple alignment and engagement • Beveled shoulder for easier pump service • quick makeup • Watertight seal • sizes range from 1 to 2 in. (25 to 51 mm) JohnSon ScreenS male-x-male nPt droP PiPe is an eConomiCal solution aVailaBle in more sizes and PiPe sChedules Johnson screens offers a low cost alternative to corrosion sensitive steel drop pipe in a variety of sizes. The male- x-male PVC drop pipe with stainless steel coupling eliminates corrosion issues and provides longer well life. Johnson Screens male-x-male drop pipe is offered in schedule 80 and 120 to provide an economical solution to most water well applications. larger size couplings come with a lead in for ease of assembly. Manufactured to the same high quality standards that Johnson screens is globally known for, the male-x-male drop pipe and couplings are durable, reliable and easy to assemble. Advantages of the male-x-male drop pipe include: • Stainless steel couplings for all sizes; exclusive design for 3 to 8 in. (76 to 203 mm) • simple alignment and engagement • quick makeup • Watertight seal • sizes range from 1 to 8 in. (25 to 203 mm) • Available in schedules 80 and 120 Site / Foundation 02/12/14 7 JohnSon ScreenS Well Casing: designed for fast, effiCient assemBly Johnson screens offers multiple innovative PVC casing styles and connection mechanisms. They can all be applied to a variety of PVC and steel products with use in multiple applications. Fast, easy and efficient to assemble, Johnson Screens PVC casing is lightweight when compared to steel casings. All connection mechanisms assemble quickly and easily with no glues or primers, leading to reduced installation time and costs. features of all mechanical joint connections include: • Environmentally friendly • Ideal for use in many climates • Quick disassembly that eliminates the need for joint cutting • Can be used in both vertical and horizontal applications • Available as screen or casing • Available in a variety of schedules or pipe class applications for Johnson screens casing and connection mechanisms include: • Water well • irrigation • mining • dewatering • Hybrid wells (steel and PVC combination) Johnson sCreens® PVC Casing quiCkloC™ Quickloc is an innovative, patent pending joint mechanism for well casings that can be applied on a variety of PVC and steel products. Currently the fastest connection mechanism available, Quickloc is as strong or stronger than other existing flush thread or spline lock designs. additional features include: • A longer bell than other mechanical joints for added strength • Pre-installed o-ring • Available in sizes 4.5 to 6 in. (114 to 152 mm) shur-a-loCk™ Shur-A-lock is a proven, spline joint mechanism used widely throughout many industries. What separates Johnson Screens Shur-A-lock from other spline lock assemblies are: • A longer bell than other mechanical joints for added strength • two o-rings and one spline for on- site assembly • Available in sizes 4 to 6.9 in. (102 to 175 mm) flush thread ConneCtions Johnson Screens provides a variety of flush thread connections for PVC casings. One of the flush thread options is the shurgrip™ pipe with a holding groove that encircles the female end for trouble free installation. features of the ShurGrip and other flush thread connections include: • Allows for use of a smaller borehole • Available in many thread-per-inch designs • Pre-installed o-ring • Pipe is specially cleaned and bagged for environmental applications • Available in sizes 0.5 to 18 in. (13 to 457 mm)Site / Foundation 02/12/14 Providing over 100 years of experience, innovation and customer satisfaction. Contact us today. our Wide range of PreCision engineered equiPment is suitaBle for more aPPliCations than eVer. australia - asia PaCifiC Johnson screens australia tel.: +61 7 3867 5555 fax: +61 7 3265 2768 EMAIL: salesasiapacific@johnsonscreens.com www.johnsonscreens.com north, south & Central ameriCa Johnson screens usa tel.: +1 651 636 3900 fax: +1 651 638 3171 EMAIL: salesamerica@johnsonscreens.com A Weatherford Company Copyright ©2011 All rights reserved to Johnson Screens, Inc. 8259.00 euroPe - middle east - afriCa Johnson screens france tel.: +33 (0)5 4902 1600 FAX : +33 (0)5 4902 1616 EMAIL: saleseurope@johnsonscreens.com arChiteCture and ConstruCtion Column covers Custom lighting Exterior applications furniture interior applications grating Wall cladding steel Brite™ general industrial Centrifuge baskets flat panel screens inline strainers laterals nozzles Sieve screens and boxes support grids Water treatment equipment mineral and aggregate ProCessing Vee-Wire® screening systems Polyurethane screening Rubber screening systems Woven wire screening systems screening accessories Wear linings mill linings Fabrication hdPe pipe Water treatment equipment on-site serViCes installation inspection repair assistance supervision PulP and PaPer effluent treatment equipment Fiber line equipment Pressure screens, baskets, rotors Progressive Cavity Pumps Pulpers, extraction plate, rotors reject handling equipment, drums Sieve bends, screen panels Water treatment equipment refining and PetroChemiCal Centerpipes Distributor trays Inlet baskets Outlet baskets Overlay grids scale traps scallop screens Vessel internals Water ProCessing and fluid treatment solids screening Complete line of headworks products Conveyors and compactors Package plants sludge treatment Clarification filtration Biological and advanced treatment sludge dewatering and handling industrial pumps Process performance chemicals Water Well nu-Well™ chemicals PVC casings and risers PVC drop pipe PVC well screens Pre-packed well screens Rod-based well screens stainless steel casings and risers Well screen fittings and accessories Turn to Johnson Screens to help maximize your operational efficiency and find long- term, trouble-free solutions. Discover our ever-expanding range of products, designed with your needs in mind: Site / Foundation 02/12/14