Atlas ACFoam-III Flat CGF Coated Glass Faced 2 Sides 4ft x 8ft Polyiso Roof Insulation Board - All Sizes checklist-Estimated Lead Time Of 5-10 Working Days VaporCheck Mastic is suitable for

VaporCheck Mastic is suitable for both new and retrofit construction

whether it's a small residential job or a large commercial undertaking

offering ample reach for a variety of applications

Sealing retrofitted windows in historical buildings

Be careful

Atlas ACFoam-III Flat CGF Coated Glass Faced 2 Sides 4ft x 8ft Polyiso Roof Insulation Board - All Sizes checklist-Estimated Lead Time Of 5-10 Working Days VaporCheck Mastic is suitable forAtlas ACFoam III is a premium polyisocyanurate (polyiso) roof insulation board, coated on both sides with durable coated glass facers (CGF). Designed for low slope commercial roofing systems, it delivers excellent thermal performance, moisture resistance, and compatibility with a wide range of roofing assemblies. Key Features Coated glass facers enhance fire resistance and dimensional stability High thermal efficiency with low environmental impact