Webster’s Dictionary defines R-value as a measure of resistance to the flow of heat through a given thickness of a material (such as insulation) with higher numbers indicating better insulating properties. The standardized measures of resistance to heat transfer were first recommended in 1945 by Everett Shuman, Director of Penn State’s Building Research Institute. R-values […]
It can be confusing to keep track of your climate zone code requirements due to the fact that the minimum insulation requirements have increased 66 – 100% over the last 9 years.
Mult-layering of Polyiso roof insulation installed with staggered joints offers a number of advantages over a single-layer system.
There are two recognized field test methods for determining uplift resistance of adhered membrane roof systems, both of which can be problematic
The minimum R-value requirements in commercial low-slope roofing have increased over the past decade resulting in thicker roof systems with more insulation.
All construction materials, including foam plastics such as polyiso insulation, must provide a suitable margin of fire safety.
Changes in season, weather, sunlight, humidity, and temperature can dramatically affectflash-off times of single-ply membrane adhesives and overall performance of adhered single-ply roof systems rely on proper membrane adhesion. ReadyFlash Technology allowcontractors to manipulate adhesive flash-off times by choosing between two different-colored facers on every board. H-Shield CG and H-Shield HD products with ReadyFlash Technology […]
Cover boards have the unique ability to enhance the overall performance of commercial roof systems. By enhancing the overall roof system performance, longer duration warranties and/or higher wind gust speeds may be available.
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