Tapered Roof Insulation Details

Specifications all dimensions are nominal board size.

Tapered roof insulation details.

Sarnatherm iso tapered is a sloped rigid closed cell polyisocyanurate insulation board with fiber reinforced felt facers. The standard tapered panel size is 4 x 4. 4 x 4 1 21 m x 1 21 m service temperature limits. The tapered insulation at the roof drain keeps rainwater flowing off the roof.

That makes the total cost around 5 724 00. Carlisle s tapered insulation helps promote rooftop drainage while providing excellent insulating value. Tapered roofi ng products extruded polystyrene xps rigid foam insulation provides a sustainable roofi ng solution helping to prevent ponding and damaging ice buildup in winter while in summer resisting the growth of fungus and vegetation. Insulfoam taper is an engineered insulation consisting of a superior closed cell lightweight expanded polystyrene eps.

Generally tapered insulation is the most cost effective method to achieving positive drainage on low slope commercial roof replacements. Acfoam tapered roof insulation helps prevent material waste reduces the roof profile and reduces fastening costs. 2 7 days 158 f 70 c 97 rh astm d2126 tensile strength. Full details are available on the tapered acfoam product pages.

Sarnatherm tapered is designed to achieve positive drainage prevent ponding water and is suitable for use in new construction and re roofing with sarnafil or sikaplan membranes. It is readily available in the two most popular and efficient tapers 1 8 3 18 mm per foot 305 mm 1 and 1 4 6 35 mm per foot 3 18 mm 2. Insulfoam taper offers a long term stable r value and has excellent dimensional stability compressive strength and water resistance properties. On average it cost 2 35 per square feet to have it installed so if you have a 2 400 sq of roof.

When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing system. Tapered roof insulation from atlas roofing corporation is designed to create positive drainage with the highest r values per inch of any rigid board insulation in the industry. Standard material is johns manville enrgy 3tapered and flat polyisocyanurate roof insulation. Insulfoam taper is cut from the same high quality eps as our flat insulroof products and meets or exceeds the requirements of astm c578 standard specification for rigid cellular polystyrene thermal insulation.

Tapered foam roofing panels are affordable and easily installed. However tapered lightweight insulating concrete should be evaluated as an alternate to tapered insulation as it may be more efficient due to the roof configuration details and location.