Tapered Roof Insulation Sizes

Firestone tapered iso 95 gl polyiso insulation provides an efective and economical solution.

Tapered roof insulation sizes.

C402 2 roof assembly exception 2 allows a 1 inch insulation thickness variation 4 0. Hunter panels roofing tech topic r105 15 franklin street portland me 04101 888 746 1114 fax. Standard material is johns manville enrgy 3 tapered and flat polyisocyanurate roof insulation. Taper is not recommended for use on level roof decks.

Thickness to be 4 2 at the low point or 5 2 4 away from the drain on a per foot tapered system. Designed to provide positive drainage of water. Tapered roof layout tapered roof insulation. 877 775 1769 hunterpanels com 0716 iecc 2015 sec.

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. Insulation tapered polyiso foam roof insulation 3 5 tapered polyiso insulation provides a logical and economical answer for roofs that do not permit adequate positive drainage like low slope roofs. When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing. Properly installed tapered iso 95 gl insulation can extend the life of the roof assembly by eliminating problems associated with ponded water.

Firestone iso 95 gl tapered insulation. The roof drain with a tapered insulation system sloped at inch per foot and 2 inch minimum at the roof drain will be 14 inches thick at the roof edge. A flat polyiso underlayment board often referred to as flat fill is used beneath continuing repeating tapered panels. Tapered polyiso panels are manufactured in standard 4 by 4 sizes with a minimum thickness of at its low edge and maximum thickness of 4 for a single board.

The added thickness to produce slope to drain is a positive factor in today s energy conscious society. If the tapered maximum thickness exceeds that permitted by 457 a thermal barrier may be required. That thickness has to be accounted for in the wood nailers when developing the roof edge detail as well as in wall flashing heights and curbs. When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing system.

Thermapink tapered roof insulation has been tested over steel roof decks without a thermal barrier in accordance with ul standard 1256 and is listed for use direct to deck in accordance with ul roof deck construction 457. The standard tapered panel size is 4 x 4.