Rigid Insulation Slope To Roof Drain

Over the course of the roof system the tapered insulation will create a slope toward the drains which typically ranges from 1 8 slope 1 down every 8 to slope 1 down every 2.

Rigid insulation slope to roof drain.

The dimensionally stable gemini drain set provides a 4 way slope to the roof drain to prevent ponding and premature roof failure. The use of foamular. As a general rule if the insulation is 2 thick or less a 4 by 4 is sufficient. Take a closer look and the choice will be clear.

All products in the acfoam polyiso roof insulation family are closed cell rigid foam insulation board flat or tapered. Tapered insulation is primarily used to meet slope requirements or to create positive drainage in an existing roof system. A tapered roof system is completely customized for every single roof from the materials used to how the insulation is laid out. 4 x4 1220mm x 1220mm.

If the insulation reaches 3 or thicker an 8 by 8 creates a more gradual slope while still providing the necessary momentum. In contrast tapered expanded polystyrene eps rigid foam insulation is available in blocks up to 40 inches thick and can be cut to virtually any slope depending on the drainage needs of the building. Organic felt or inorganic coated glass facers. Foamular insul drain insul drain drainage board is designed specifically for foundations to improve thermal foundation performance through a higher r value.

Because of its size and customization options tapered eps often can be installed in a single layer. Available with acfoam ii acfoam iii and facer technology one piece pre fabricated tapered panel. Fabric covered channels drain water from vertical foundation walls. Many building codes contain requirements for minimum roof slope especially for new construction.

Minimum slope of per foot as required by the international building code ibc toward roof drains or scupper drains leaving no fl at areas for ponding. As a general rule if the insulation is two inches thick or less a 4 foot by 4 foot sump is sufficient. A typical interior roof drain assembly occupies about a 4 foot by 4 foot square area with a inch per foot tapered slope. Other slopes are available and provide additional fl exibility for design.

It improves roof performance and longevity by draining water properly and in a timely manner. Download insul drain data sheet pdf 372 kb. The standard tapered panel size is 4 x 4.