Required Thickness Coverboard Roof

Table 1 12 4 30 year platinum tpo requirements.

Required thickness coverboard roof.

When the total required polyiso insulation thickness is equal to or greater than 3 thickness the minimum recommended thickness is 1 5 for both. 1 4 6 4 mm 1 16 1 6 mm width standard. However thermal efficiency may be increased by the use of multiple layers of flintboard. Securock products are available in thicknesses of 3 8 and 5 8.

Meets the requirements of astm c 1177. Densdeck roof boards are utilized in a wide variety of roofing systems for new and re roofing applications as gypsum roof cover boards and thermal barriers. This significantly increases the time required to melt the insulation which adds fuel to the flames. Fm class 1 for fire barrier requirements and ul class a unlimited slope with excellent surface burning characteristics.

Fm class 1 for fire barrier requirements and ul class a unlimited slope with excellent surface burning characteristics. It provides exceptional bond and low absorption in adhered systems and offers sustainable design for all types of roofing systems including single ply fluid applied built up spray foam metal and modified bitumen roofing. Thickness of firestone insulation acceptable for use as an immediate substrate for firestone roof membranes in firestone red shield warranties. He is the editorial director of architectural roofing waterproofing and a technical columnist for roofing contractor.

Physical properties listed above are presented as typical average values as determined by accepted astm test methods and are subject to normal manufacturing. Meets the requirements of astm c 1177. D annunzio is president of paragon roofing technology inc a construction engineering firm he founded in 1989. The cover board also serves as a substrate for a vapor retarder in this application.

Coated fiberglass facer ideal for fully adhered systems provides a broader compatibility and higher performance with roofing adhesives. Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the calorimeter requirements for conventionally insulated decks. Tested in accordance with astm e84 its surface burning characteristics are flame spread 0 and smoke developed 0. Over the roof deck.

5 8 thickness meets the requirements of type x per astm c 1177. Flame spread index of 75 and smoke development 450 meet code requirements for foam plastic roof insulation. Coated fiberglass facer ideal for fully adhered systems provides a broader compatibility and higher performance with roofing adhesives. He has published more than 100 articles and has written four books on building exterior issues.

In this application the cover board provides a fire barrier in the case of an internal fire. 5 8 thickness meets the requirements of type x per astm c 1177.