G R E E N G U A R D® M O I S T U R E M A N A G E M E N T Residential and Light Commercial Installation Guide For GreenGuard Building Wraps ® DEFLECTION/DRAINAGE/DRYING 1-800-241-4402 www.TrustGreenGuard.
BUILDING WRAP AND FLASHING INSTALLATION BUILDING WRAP INSTALLATION 1. General GreenGuard® Building Wraps are polyolefin building wraps intended to perform as water-resistive barriers when installed in accordance with the information provided in this Guide. They are intended to reduce the risk of air and bulk water infiltration when installed under exterior coverings such as brick, stucco, clay tile, etc., and various siding materials like wood, vinyl, fiber cement, etc.
GUIDE FOR RESIDENTIAL APPLICATIONS 4. At window rough openings, cut the building wrap using a modified “I” pattern, folding excess material to the inside of the opening and fasten to studs (see Figure 3). Alternative details for installing building wrap at rough openings are shown in sections 5A and 5B of this Guide. Use of GreenGuard® Flashing Products is optional unless the building wrap is intended to perform as the primary air barrier material in the wall assembly.
BUILDING WRAP AND FLASHING INSTALLATION 4.B. Installation of Building Wrap at Window Frame Detail 4.D. Installation of Building Wrap at Wall Penetrations Figure 4 shows an example of a window frame detail where the building wrap is installed over the sheathing and is wrapped around the window jambs to the interior of the wall. Windows should be sealed in accordance with the window manufacturer’s installation instructions.
GUIDE FOR RESIDENTIAL APPLICATIONS FLASHING INSTALLATION 1. General 4. Usage and Limitations GreenGuard® Flashings and GreenGuard® Butyl Flashings are self-adhering, waterproof flashing materials designed for sealing around openings and penetrations in exterior walls.
BUILDING WRAP AND FLASHING INSTALLATION 5A. Installation (Windows with Mounting Flanges – Wrap Pulled Into Opening) Note: The following installation information is intended to represent a “best practices” approach and is not intended to address all possible construction scenarios. Some of the information described below for installation of building wrap and flashing materials is similar to that described in ASTM E 2112, Method A1. 2. Optional Sill Flashing Method No.
GUIDE FOR RESIDENTIAL APPLICATIONS Optional Sill Flashing Method No. 3: Install a sill dam directly over the building wrap at the back of the sill and then install the GreenGuard® SuperStretch™ Butyl Flashing as described in Method 1 (see Figure 2B). Optional Sill Flashing Method No. 5: (Corner Guards) A. To install the GreenGuard® Corner Guards, cut back the header and the sides of the building wrap around the rough opening. Install the corner guards with staples or roofing nails at the 4 corners. B.
BUILDING WRAP AND FLASHING INSTALLATION 3. Install the window in accordance with the window manufacturer’s installation instructions. Typically, this requires that a bead of sealant be applied to the back side of the window flange prior to installing the window (see Figure 3A). IMPORTANT: DO NOT SEAL THE BOTTOM FLANGE OF THE WINDOW. Attach the window using fasteners specified by the window manufacturer.
GUIDE FOR RESIDENTIAL APPLICATIONS 2. Cut the building wrap along the marked vertical lines on the sides of the opening. The cut will end at the parallel point along the bottom of the rough opening. Remove wrap from the inside of the rough opening and install sill flashing (see Figure 4B). Follow sill flashing recommendations in Section 5A. 4. Install the jamb flashing so that it overlaps the sill flashing (see Figure 4D).
BUILDING WRAP AND FLASHING INSTALLATION 6. Installation (Arched Windows) GreenGuard® SuperStretch™ Butyl Flashing will conform to the contour of any opening with arched or curved dimensions as shown in Figure 5. Remove the release paper and then press GreenGuard® SuperStretch™ Butyl Flashing against the wall, making sure that all flashing seams are overlapped at least 2 inches (50 mm).
GUIDE FOR RESIDENTIAL APPLICATIONS 10. Installation (Mounting Block) GreenGuard® Flashings can be used to seal a standard mounting block as shown in Figures 9A-9C. 11. Installation (Pipe Penetrations) GreenGuard® Flashings can be used to seal around penetrations in an exterior wall. Figures 10A-10C show how GreenGuard® SuperStretch™ Butyl Flashing is applied around a pipe penetration.
G R E E N G U A R D® M O I S T U R E M A N A G E M E N T 12. Alternative Method for Sealing Overlapped Building Wrap Seams Common adhesives can be used to seal overlapped seams of GreenGuard® Air Barrier Building Wraps. It is applied using a standard caulking gun and is easily extruded. When using common adhesives to seal building wrap seams as an alternative to using seam tape, install the adhesive as follows: A pply 1/8 to 1/2 inch bead of sealant on the lower course of building wrap.
