<h1>EnergyGuard Iso Polyiso Insulation Board (4' x 4')</h1> <p><strong>GAF EnergyGuard Iso is a rigid polyiso insulation board designed to add high thermal value to commercial roofing assemblies. It features glass fiber reinforced cellulosic felt facers bonded to a polyisocyanurate foam core to help improve energy efficiency and support green building goals.</strong></p> <h2>Key Features:</h2> <ul> <li><strong>High-Performance Roof Insulation:</strong> Polyiso foam core delivers high thermal value in low-slope/commercial roof assemblies</li><li><strong>Durable Facers:</strong> Glass fiber reinforced cellulosic felt facers help provide stability and jobsite toughness</li><li><strong>Easy to Handle:</strong> 4 ft x 4 ft sheet format is convenient for staging and placement</li><li><strong>Energy-Saving Upgrade:</strong> Adds insulation value to help reduce heat flow through the roof deck</li><li><strong>Commercial Roofing Compatible:</strong> Intended for use as roof insulation in commercial roofing systems</li> </ul> <h2>Specifications Table:</h2> <table> <tr> <th><strong>Specification</strong></th> <th><strong>Details</strong></th> </tr> <tr><td><strong>Brand</strong></td><td>GAF</td></tr><tr><td><strong>Product line</strong></td><td>EnergyGuard Iso</td></tr><tr><td><strong>Product type</strong></td><td>Rigid insulation board (polyiso roof insulation panel)</td></tr><tr><td><strong>Thickness</strong></td><td>2.6 in</td></tr><tr><td><strong>Sheet size</strong></td><td>4 ft x 4 ft</td></tr><tr><td><strong>Unit of measure</strong></td><td>SH - Sheet</td></tr><tr><td><strong>Category</strong></td><td>Insulation & Weatherproofing</td></tr><tr><td><strong>Sub-category</strong></td><td>Flat & Fan Fold Rigid Insulation Boards</td></tr> </table> <h2>Frequently Asked Questions (FAQ):</h2> <p><strong>Q: What size and thickness is this board?</strong><br/> <strong>A:</strong> This product is a 4 ft x 4 ft sheet with a 2.6 in thickness.</p> <p><strong>Q: What is the insulation material?</strong><br/> <strong>A:</strong> It is a polyisocyanurate (polyiso) foam core with glass fiber reinforced cellulosic felt facers.</p> <p><strong>Q: Where is it typically used?</strong><br/> <strong>A:</strong> Its designed as a roof insulation panel for commercial roofing assemblies.</p> <p><strong>Q: Can it contribute to green building goals?</strong><br/> <strong>A:</strong> GAF notes the EnergyGuard Polyiso Insulation product contributes to green building rating systems (see GAF sustainability documentation).</p> <h2>A Clean, Architectural Layer of Comfort</h2> <p>Think of this as the quiet luxury of a spacean invisible layer that elevates comfort with crisp, architectural intention. The rigid, 4' x 4' format feels purposeful and precise, while the polyiso core is all about performance beneath the surface. Pair it with a well-detailed roof assembly and let the buildings envelope do the heavy liftingmore control, less compromise. Its the kind of behind-the-scenes essential that makes elevated living feel effortless.</p> <p><strong>Add GAF EnergyGuard Iso insulation to your roofing assembly to boost thermal performance with a durable, jobsite-ready rigid board.</strong></p>