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SECTION 07250
WEATHER BARRIERS
 
 
Copyright 2016 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Kingspan Insulation LLC; Insulation and Wraps.
This section is based on the products of Kingspan Insulation LLC, which is located at:
2100 RiverEdge Pkwy. Suite 175
Atlanta, GA 30328
Toll Free Tel: 800-241-4402
Tel: 678-589-7300
Fax: 678-589-7325
Email: request info (info@kingspaninsulation.us)
Web: www.trustgreenguard.com
[ Click Here ] for additional information.
Kingspan Insulation LLC is a leading manufacturer in energy efficiency and moisture management products, offering high performance insulation, building wraps and pre-insulated HVAC ductwork. Kingspan Insulation is part of the Kingspan Group plc, a global leader in a range of product divisions including pre-insulated building panels, environmental technologies and renewable energy technologies. Its products are among the most thermally efficient and technologically advanced insulation materials available.
Kingspan Weather Barriers are high-performance air barrier and water-resistive barrier products that help deflect water and wind driven rain while allowing trapped moisture to escape to create healthier, more durable, and cost-efficient structures. Typically installed between exterior wall cladding and sheathing.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Weather barrier of the following types:
1.
Kingspan GreenGuard Weather Barriers RainDrop.
2.
Kingspan GreenGuard Weather Barriers MAX.
3.
Kingspan GreenGuard Weather Barriers C2000.
4.
Kingspan GreenGuard Weather Barriers HPW.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 03300 - Cast-in-Place Concrete.
B.
Section 04200 - Unit Masonry.
C.
Section 05400 - Cold-Formed Metal Framing.
D.
Section 06100 - Rough Carpentry.
E.
Section 06160 - Sheathing.
F.
Section 07210 - Thermal Insulation.
G.
Section 07240 - Exterior Insulation and Finish Systems.
H.
Division 07 - Roofing.
I.
Section 07620 - Flashing and Trim.
J.
Section 07920 - Joint Sealants.
K.
Section 09250 - Gypsum Board Assemblies.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
American Association (AAMA):
1.
AAMA 711 - Voluntary Specification for Self-Adhering Flashing Used for Installation of Exterior Wall Fenestration Products.
B.
American Association of Textile Chemists and Colorists (AATCC):
C.
AATCC-127 - Water Resistance: Hydrostatic Pressure Test.
D.
ASTM International (ASTM):
1.
ASTM D1777 - Standard Test Method for Thickness of Textile Materials.
2.
ASTM D226 - Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.
3.
ASTM D779 - Standard Test Method for Water Resistance of Paper, Paperboard and Other Sheet Materials by the Dry Indicator Method.
4.
ASTM D3330 - Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape.
5.
ASTM D3776 - Standard Test Methods for Mass Per Unit Area (Weight) of Fabric.
6.
ASTM E96 - Standard Test Methods for Water Vapor Transmission of Materials.
7.
ASTM E283 - Standard Test Methods of Determining Rate of Air Leakage through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen.
8.
ASTM E330 - Standard Test Method for Structural Performance of Exterior Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure Difference.
9.
ASTM E331 - Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference.
10.
ASTM E1677 - Standard Specification for Air Barrier Material or System for Low-Rise Framed Building Walls.
11.
ASTM E2178 - Standard Test Method for Air Permeance of Building Materials.
12.
ASTM E2273 - Standard Test Method for Determining the Drainage Efficiency of Exterior Insulation and Finish Systems (EIFS) Clad Wall Assemblies.
13.
ASTM E2357 - Standard Test Method for Determining Air Leakage of Air Barrier Assemblies.
14.
ASTM E2556 - Standard Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers Intended for Mechanical Attachment.
E.
National Research Council Canada, Canadian Construction Materials Centre (CCMC):
1.
CCMC Technical Guide 07102 - Sheathing, Membrane, Breather-Type.
2.
CCMC Technical Guide 07273 - Air Barrier Materials.
F.
International Code Council Evaluation Service (ICC-ES):
1.
ICC-ES AC38 - Acceptance Criteria for Water-Resistive Barriers.
2.
ICC-ES AC148 - Acceptance Criteria for Flashing Materials.
3.
ICC-ES AC356 - Acceptance Criteria for Moisture Drainage Systems Used with Exterior Cement Plaster or Adhered Masonry Veneer Walls.
1.4
SUBMITTALS
A.
Submit under provisions of Section 01300.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Physical properties, performance criteria, compliance reports, material compatibility, product limitations, and recommendations.
2.
Preparation instructions and recommendations.
3.
Storage and handling requirements and recommendations.
4.
Installation methods.
C.
Shop Drawings:
1.
Provide project specific, scaled, shop drawings and calculations including extents of installation, load bearing capacity and structural requirements.
2.
Show details including material layers and thicknesses, flashing, terminations and openings, intersections, seams, joints, penetrations, and accessories with each system to be installed.
D.
Qualifications:
1.
Submit manufacturer and installer qualifications.
 
** NOTE TO SPECIFIER ** Delete the following paragraphs if LEED is not applicable. Coordinate with the Architect and Sustainable Design team as required for documentation.
 
E.
LEED Submittals: Provide product data and manufacturer's certifications as requested by the Architect.
1.5
QUALITY ASSURANCE
A.
Single Source Responsibility: Provide primary weather barrier materials from a single manufacturer. Secondary and accessory materials by other manufacturers shall be approved for compatibility by the primary manufacturer.
B.
Testing Laboratory Qualifications: Accredited by the International Accreditation Service (IAS), American Association for Laboratory Accreditation (A2LA), or Standards Council of Canada (SCC).
C.
Manufacturer Qualifications: Minimum 20 years experience manufacturing similar products.
D.
Installer Qualifications: Minimum 2 years experience installing similar products and approved by the manufacturer.
 
** NOTE TO SPECIFIER ** Include a mock-up if the project size or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
 
E.
Mock-Up: Provide a mock-up for evaluation of surface preparation, installation materials and techniques, and application workmanship.
1.
Finish areas designated by Architect, minimum size 8 by 8 feet (2438 by 2438 mm) including corners and transition, fasteners, tapes, flashing and accessories to be provided in the final installation.
2.
Do not proceed with remaining work until workmanship is approved by Architect.
3.
Refinish mock-up area as required to produce acceptable work.
4.
Accepted mock-up shall establish relationships between adjacent materials and the standard of workmanship for the final installation.
1.6
PRE-INSTALLATION MEETINGS
A.
Convene the manufacturer's authorized technical representative, general contractor, and related trades minimum two weeks prior to starting work of this section to discuss project conditions, material compatibility, manufacturer's warranty requirements, and installation procedures.
B.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.
Store in accordance with the manufacturer's instructions in clean, dry location protected from exposure to direct sunlight. Material that has been unwrapped shall be covered with opaque, light colored tarp or re-wrapped in manufacturer's packaging.
C.
Product is combustible, protect from exposure to open flame or other ignition sources.
D.
Handle materials to avoid damage.
1.8
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results.
1.
Install Butyl Flashing in temperature range from 10 to 150 deg. F (-12 to 66 C).
B.
Do not install products to wet substrates or under environmental conditions outside manufacturer's recommended limits.
1.9
WARRANTY
A.
Provide manufacturer's extended product and weathertightness warranty backed by manufacturer's inspectors and authorized installer network.
1.
Warranty Period: 15 years.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Kingspan Insulation LLC, which is located at: 2100 RiverEdge Pkwy. Suite 175; Atlanta, GA 30328; Toll Free Tel: 800-241-4402; Tel: 678-589-7300; Fax: 678-589-7325; Email: request info (info@kingspaninsulation.us); Web: www.trustgreenguard.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01600.
 
** NOTE TO SPECIFIER ** GreenGuard RainDrop 3D Building Wrap is for use as an air barrier and water-resistive barrier and drainage medium in construction environments that required optimum barrier performance plus drainage behind wall cladding, for example rain screens. Delete if not required.
 
2.2
RAINDROP WEATHER BARRIERS
A.
Mechanically-fastened drainage membrane air barrier, building wrap: Provide Kingspan GreenGuard RainDrop 3D Building Wrap or approved equivalent to meet the following:
1.
Comply with the following:
a.
ICC-ES AC38.
b.
ASTM D226, Type I Building / Roofing Paper.
c.
ASTM E1677, Type II, Air Infiltration Barriers.
d.
ASTM E2178, Air Permeance, Air Barriers.
e.
ASTM E2357, Air Barrier Assembly.
f.
ASTM E2556 - Type II, Specification for Water-Resistive Barriers.
g.
HUD/FHA UU-B-790a - Equivalent to Grade D/Type 15 Building Paper.
2.
Nominal Thickness: 0.020 inch (20 mils) when tested in accordance with ASTM D1777.
3.
Air Leakage Rate: 0.01 cubic feet per minute per square foot at 1.57 psf when tested in accordance with ASTM E283.
4.
Air Permeance: Not to exceed 0.000 cubic feet per minute per square foot under a pressure differential of 0.3 inch water (1.57 psf) (0.001 L/s/m2 at 75 Pa) when tested in accordance with ASTM E2178.
5.
Water Vapor Permeance: 16 Desiccant, 18 Water Method when tested according to ASTM E96.
6.
Water Vapor Transmission Rate: 111 Desiccant, 125 Water Method grams per square meter per 24 hours when tested in accordance with ASTM E96.
7.
Water Penetration Resistance: Greater than 600 when tested in accordance with AATCC-127.
8.
Water Resistance: 120 minutes when tested to ASTM D779, and pass ASTM E331 for 15 minutes at 15 miles per hour (27 Pa).
9.
Minimum Drainage Efficiency: >90 percent when tested in accordance with ICC-ES AC356.
10.
Structural Integrity: Pass ASTM E330, Procedure A, minimum 1 hour at 65 miles per hour (500 Pa).
11.
Comply with ICC-ES AC38.
 
** NOTE TO SPECIFIER ** Below for projects using EIFS exterior assemblies. Delete if not required.
 
12.
Comply with ASTM E2273 and EIFS manufacturer requirements.
 
** NOTE TO SPECIFIER ** GreenGuard Max Building Wrap is for use as an air barrier and water-resistive barrier in construction environments that required optimum barrier performance in residential or commercial applications. Delete if not required.
 
2.3
MAX WEATHER BARRIERS
A.
Mechanically-fastened thin sheet building wrap: Provide Kingspan GreenGuard Max Building Wrap or approved equivalent to meet the following:
1.
Comply with the following:
a.
ICC-ES AC38.
b.
ASTM D226, Type I Building / Roofing Paper.
c.
ASTM E1677, Type II, Air Infiltration Barriers.
d.
ASTM E2178, Air Permeance, Air Barriers.
e.
ASTM E2357, Air Barrier Assembly.
f.
ASTM E2556 - Type II, Specification for Water-Resistive Barriers.
g.
HUD/FHA UU-B-790a - Equivalent to Grade D/Type 15 Building Paper;
2.
Nominal Thickness: 0.018 inch (18 mils) when tested in accordance with ASTM D1777.
3.
Air Leakage Rate: 0.01 cubic feet per minute per square foot at 1.57 psf when tested in accordance with ASTM E283.
4.
Air Permeance: Not to exceed 0.000 cubic feet per minute per square foot under a pressure differential of 0.3 inch water (1.57 psf) (0.001 L/s/m2 at 75 Pa) when tested in accordance with ASTM E2178.
5.
Water Vapor Permeance: 16 Desiccant, 25 Water Method when tested according to ASTM E96.
6.
Water Vapor Transmission Rate: 111 Desiccant, 173 Water Method grams per square meter per 24 hours when tested in accordance with ASTM E96.
7.
Water Penetration Resistance: Greater than 600 when tested in accordance with AATCC-127.
8.
Water Resistance: 120 minutes when tested to ASTM D779, and pass ASTM E331 for 15 minutes at 15 miles per hour (27 Pa).
9.
Structural Integrity: Pass ASTM E330, Procedure A, minimum 1 hour at 65 miles per hour (500 Pa).
10.
Comply with ICC-ES AC38.
 
** NOTE TO SPECIFIER ** Below for projects using EIFS exterior assemblies. Delete if not required.
 
11.
Comply with ASTM E2273 and EIFS manufacturer requirements.
 
** NOTE TO SPECIFIER ** C2000 is for use as water-resistive barrier and air barrier in environments that required extremely high vapor permeance. Delete if not required.
 
2.4
C2000 WEATHER BARRIERS
A.
Water-resistive air barrier with high vapor permeance: Provide Kingspan GreenGuard Max Building Wrap or approved equivalent to meet the following:
1.
Comply with the following:
a.
ICC-ES AC38.
b.
ASTM D226, Type I Building / Roofing Paper.
c.
ASTM E1677, Type II, Air Infiltration Barriers.
d.
ASTM E2178, Air Permeance, Air Barriers.
e.
ASTM E2357, Air Barrier Assembly.
f.
ASTM E2556 - Type II, Specification for Water-Resistive Barriers.
g.
HUD/FHA UU-B-790a - Equivalent to Grade D/Type 15 Building Paper
2.
Nominal Thickness: 0.023 inch (23 mils) when tested in accordance with ASTM D1777.
3.
Air Leakage Rate: 0.01 cubic feet per minute per square foot at 1.57 psf when tested in accordance with ASTM E283.
4.
Air Permeance: Not to exceed 0.000 cubic feet per minute per square foot under a pressure differential of 0.3 inch water (1.57 psf) (0.001 L/s/m2 at 75 Pa) when tested in accordance with ASTM E2178.
5.
Water Vapor Permeance: 94 when tested according to ASTM E96, water method.
6.
Water Vapor Transmission Rate: 653 grams per square meter per 24 hours when tested in accordance with ASTM E96, water method.
7.
Water Penetration Resistance: Greater than 600 when tested in accordance with AATCC-127.
8.
Water Resistance: Pass ASTM E331, 15 minutes at 15 miles per hour (27 Pa).
9.
Structural Integrity: Pass ASTM E330, Procedure A, minimum 1 hour at 65 miles per hour (500 Pa).
10.
Comply with ICC-ES AC38.
 
** NOTE TO SPECIFIER ** Below for projects using EIFS exterior assemblies. Delete if not required.
 
11.
Comply with ASTM E2273 and EIFS manufacturer requirements.
 
** NOTE TO SPECIFIER ** HPW is for use as a water-resistive barrier and air barrier in construction environments where optimum barrier performance is required. Delete if not required.
 
2.5
HPW WEATHER BARRIERS
A.
Water-resistive air barrier: Provide Kingspan GreenGuard HPW Building Wrap or approved equivalent to meet the following:
1.
Non-woven, polyolefin coated, non-perforated building wrap.
2.
Comply with the following:
a.
ICC-ES AC38.
b.
ASTM D226, Type I Building / Roofing Paper.
c.
ASTM E2178, Air Permeance, Air Barriers.
d.
Intertek CCRR-1018 for IBC, IECC, and IRC Compliance.
e.
HUD/FHA UU-B-790a, Equivalent to Grade D/ Type 15 Building Paper.
f.
ASTM E 2556, Type II (Specification for Water- Resistive Barriers);
3.
Nominal Thickness: 0.016 inch (16 mils) when tested in accordance with ASTM D1777.
4.
Air Permeance: Not to exceed 0.000 cubic feet per minute per square foot under a pressure differential of 0.3 inch water (1.57 psf) (0.001 L/sm at 75 Pa) when tested in accordance with ASTM E2178.
5.
Water Vapor Permeance: 38 when tested according to ASTM E96, water method.
6.
Water Vapor Transmission Rate: 264 grams per square meter per 24 hours when tested in accordance with ASTM E96, water method.
7.
Water Penetration Resistance: Greater than 500 when tested in accordance with AATCC-127.
8.
Water Resistance: 60 minutes when tested in accordance with ASTM D779.
2.6
ACCESSORlES
A.
Adhesives, Sealants, and Primers: Compatible with weather barrier materials and flashing membranes. Refer to Manufacturer's Technical Bulletin #11 for product listings.
 
** NOTE TO SPECIFIER ** GreenGuard Flashing blocks water penetration into exterior wall systems, creating a permanent water tight seal. Delete if not required.
 
B.
Standard Flashing: Kingspan GreenGuard, self-adhering membrane for sealing straight openings. Comply with the following:
1.
AAMA 711.
2.
ICC-ES AC148.
3.
Nominal Thickness: 0.020 inch (20 mils).
4.
Backing Material: Polyolefin.
5.
Self-Adhering
6.
Adhesive: Rubber-modified asphalt.
7.
Maximum UV Exposure: 30 days.
C.
Butyl Flashing: Kingspan GreenGuard Butyl Flashing, SuperStretch type at arched windows, corners, and round protrusions. Comply with the following:
1.
AAMA 711.
2.
ICC-ES AC148.
3.
Nominal Thickness: 0.016 inch (16 mils).
4.
Backing Material: Polyolefin to ASTM D3776.
5.
Self-Adhering.
6.
Adhesive: Butyl
7.
Water Resistance: Minimum 24 in 24 hours when tested in accordance with ASTM D779.
8.
Peel Adhesion: 1.9 to 4.4 based on substrate when tested in accordance with ASTM D3330.
9.
Maximum UV Exposure: 120 days.
D.
Tape: Kingspan GreenGuard Custom Seam Tape.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Remove obstructions to installation planes greater than 1/4 inch (6 mm) including fasteners, debris or foreign objects that would interfere with a complete and continuous installation. Sweep surfaces clean prior to installation of self-adhering products.
C.
Do not install to damp surfaces or in weather conditions outside the manufacturer's limits.
D.
Prime surfaces in accordance with the manufacturer's recommendations.
3.3
INSTALLATION
A.
Install in accordance with manufacturer's instructions in configurations and locations shown on the Drawings. Coordinate final installation details and sequencing with the drawings and adjacent product manufacturers requirements, including sheathing or insulation board, framing members, flashing, sealants and tapes, door and window manufacturer standard details and warranty requirements.
B.
Unroll with printed side facing out. Align bottom edge of wrap with the base of the wall. Install weather barriers continuously over building surfaces with sheets overlapped as follows: top and bottom, side to side, and at through-wall flashing as follows:
1.
Top and bottom, side to side, and at through-wall flashing: minimum 6 inches (152 mm).
2.
Corners: minimum 12 inches (304 mm)
C.
Seal seams, edges, and attachment to adjacent construction using manufacturers recommended tapes and sealants to prevent air leakage including penetrations, ties and anchors, windows, doors, and other openings, exterior assembly connections, control and expansion joints, and miscellaneous openings in the building envelope.
D.
Penetrations and Openings:
1.
Install continuously over openings, make a cut in the center of each opening wrapping inside the rough opening, securing to framing members unless otherwise indicated.
2.
Seal perimeters of penetrations and openings with manufacturers butyl flashing or approved equal.
E.
Install mechanical fasteners in minimum spacing recommended by the manufacturer.
1.
Do not install mechanical fasteners on exterior surfaces adjacent to openings as follows:
a.
Opening Sides: within 6 inch (152 mm).
b.
Opening Heads: within 9 inches (228 mm).
2.
Attach at sills and completely seal with manufacturer's recommended sealants and flashing.
3.4
FIELD QUALITY CONTROL
A.
Coordinate with Owner's testing agency to inspect installation areas with the manufacturer's authorized technical representative and the Architect. Do not cover weather barriers until accepted.
3.5
PROTECTION
A.
Protect installed products until completion of project. Do not leave weather barrier materials or accessories exposed to ultra-violet light or exterior weather conditions beyond periods recommended by the manufacturer.
B.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION