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Themax basement installCutting THERMAX™insulation prod- ucts may be cut with a straight edge and utility knife or with a small handsaw. See Figures 1a and 1b. Figure 1a Materials Checklist To install THERMAX™ Sheathing or THERMAX™ White Finish insulation, you will need: • Utility knife or small handsaw • Straight edge • Safety glasses/goggles and gloves • Ventilation or respiratory protection for application of polyurethane foam sealant • Measuring tape • Pencil • Construction-grade adhesive such as ENERBOND™MH or SF Polyurethane Adhesive • THERMAX ™aluminum foil or white foil tape (for Option 1) • Mechanical fasteners (optional for Option 1) • Squeegee or soft paint roller (for Option 1) • PVC interlock joint closure system (for Option 2) • Polyurethane-compatible construction-grade caulk/ sealant(for Option 2) • Polyisocyanurate- compatible insulating foam sealant such as GREAT STUFF™Pro Gaps & Cracks Before installing THERMAX insulation on the interior basement wall, be sure there are no leaks or structural cracks in the wall. THERMAX products insulate the base- ment wall; they do not stop water leakage. ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow *See International Code Council National Evaluation Services Report NER-681.new homes/remodelingTHERMAX™Sheathing and THERMAX™White Finish (WF) insulation offer two quick and easy options to insulate base- ment walls. Lightweight and easy to install, both products are ideally suited for exposed basement applications, whether the desired result is a semi- finished or finished appearance. THERMAX Sheathing and THERMAX White Finish are non- structural, rigid boards consisting of a glass-fiber-reinforced poly- isocyanurate foam core with solid aluminum facers on both sides. The exposed surface of THERMAX Sheathing is reflective foil, perfect for use in areas such as a laundry room or storage space. THERMAX White Finish insulation features an embossed white acrylic-coated aluminum facer on its exposed surface, for a clean, finished wall that is durable and washable. THERMAX products can be left exposed to the interior without a thermal barrier in most applications.* THERMAX insulation products are Factory Mutual approved as “Wall- Ceiling Construction, FM Approvals Standard FM 4880, Metal Faced – Class 1 Fire Rated to a max. 30 ft High.” United StatesINSTALLATION INFORMATION RESIDENTIAL INSTALLATION PROCEDURES FOR THERMAX™INSULATIONS Exposed Basement Applications foundationsslabs sillsatticswallsceilin g s roofs Figure 1b Installation THERMAX™insulations may be attached directly to the basement wall with construction-grade adhesive or with the PVC inter- lock joint closure system. Both installation methods offer a quick and easy alternative to using studs, batt insulation and drywall. OPTION 1: ADHERE DIRECTLY TO WALL 1. Provide proper ventilation and wear gloves and eye protection. 2. Apply heavy beads (min. bead size 3/8") of ENERBOND™ MH or SF Polyurethane Adhesive or appropriate construction-grade adhesive to the wall (Figure 2).Note: Follow adhesive manufacturer recommendations for application pressure and cure times for proper adhesion to masonry walls. 2 INSTALLATION INFORMATION 3. Press insulation board against the wall and butt board edges tightly together (Figure 3). Apply pressure to board until the adhesive is set. (Optional: Attach mechanical fasteners to the top and bottom of the board to hold it in place until the adhesive has set.) 4. For additional insulation value and protection against air infiltration, apply a small bead of GREAT STUFF™Pro Gaps & Cracks along board seams. Take care that foam does not get on insulation facer during application. Allow foam to fully cure, then trim excess with a serrated knife. 5. Cover seams between insula- tion boards with aluminum or white foil tape (Figure 4). Before applying tape, wipe the application area with a damp cloth to remove foam dust. Allow surface to air dry. Use a squeegee or soft paint roller to press the tape firmly to the joint. Cut tape with a knife or scissors. Do not tear tape. Figure 2 ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow OPTION 2: PVC INTERLOCK JOINT CLOSURE For additional moisture control and a more finished appearance when insulating with THERMAX™ White Finish insulation, use the PVC interlock joint closure system. The PVC interlock joint closure system is com- posed of a 2" wide PVC base strip that is attached to the wall at vertical joint locations and a top “T” section that snaps into the base, holding the insulation boards to the wall. The top “T” sections are available in sizes to accommo- date board thicknesses of 1", 1.5" and 2". Select the correct top “T” section size for your application. Both the PVC base strip and top “T” sections are sold in 10' lengths. 1. Measure and mark vertical lines for the placement of the PVC base strips. Space the PVC base strips for the correct width of the insula- tion board (Figure 5). Allow 1/8" between the insulation boards to accommodate the width of the PVC base strip. 2. Fasten PVC base strip to con- crete or masonry wall every 12" with a pneumatic nailer or equivalent (Figure 6). Figure 5 Figure 6 Figure 3 Figure 4 3 Additional Protection Against Air and Moisture Use GREAT STUFF™Pro Gaps & Cracks to seal gaps, cracks and joints as well as to insulate the area between floor joists along the sill plate (Figures 11 and 12). Note: GREAT STUFF™Pro foam sealant products cannot be removed from THERMAX™ White Finish insulation. Use tape or protective film to protect board surface from overspray. Figure 10 ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow 3. Provide proper ventilation and wear gloves and eye protection. 4. Apply beads of ENERBOND™ MH or SF Polyurethane Adhesive or appropriate con- struction-grade adhesive to the wall every 16" between PVC base strips (Figure 7). 5. Press insulation board firmly into position between the PVC base strips (Figure 8). Figure 8 7. Figure 10 shows three differ- ent options for finishing at corners: butting two panels against one another, using the PVC Clip Strip or using the J-channel edge closure. The method chosen depends on the desired finished look.Figure 11 6. Apply a continuous bead of construction-grade caulk/ sealant along the vertical edges of the insulation boards, then position and press a PVC top “T” section in the PVC base strip until it snaps into place (Figure 9). Figure 9 Figure 12 Figure 7 Utilities Installation Electrical and plumbing utilities can be easily installed behind or within the insulation board. Cut openings in the back side of the insulation board for electrical boxes and access to plumbing fixtures and other utilities (Figures 13 and 14). for Painting If desired, THERMAX™ Sheathing and THERMAX™ White Finish insulation may be painted after installation and taping of joints. Visit the online Answer Center at www.insulateyourhome.com/ thermax for more specific recommendations to paint THERMAX insulations. Recommendations INSTALLATION INFORMATION Figure 13 Figure 14 Form No. 179-07260-0506P&M IN THE U.S.: • For Technical Information: 1-866-583-BLUE (2583) • For Sales Information: 1-800-232-2436 NOTICE: No freedom from any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other government enactments. Dow assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED. THERMAX products should be used only in strict accordance with product application instructions. THERMAX products, when used in a building containing combustible materials, may contribute to the spread of fire. For more information, consult MSDS and/or call Dow at 1-866-583-BLUE (2583). In an emergency, call 1-989-636-4400. WARNING: THERMAX insulation does not constitute a working walkable surface or qualify as a fall protection product. Building and/or construction practices unrelated to insulation could greatly affect moisture and the potential for mold formation. No material supplier including Dow can give assurance that mold will not develop in any specific system. THE DOW CHEMICAL COMPANY • Building & Construction • 200 Larkin • Midland, MI 48674 • www.insulateyourhome.com/thermax Printed in U.S.A.®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow Habitat for Humanity is a registered service mark owned by Habitat for Humanity International Insulation, when installed according to ENERGY STAR guidelines, can save energy. www.energystar.gov