Rigid Insulation Slope To Roof Drain

A typical interior roof drain assembly occupies about a 4 by 4 square area with a per foot tapered slope.

Rigid insulation slope to roof drain.

As a general rule if the insulation is two inches thick or less a 4 foot by 4 foot sump is sufficient. Because of its size and customization options tapered eps often can be installed in a single layer. 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.

Over structural slope when roof drains are located a great distance away from a sloped roof edge more than 48 it can be more cost effective to use a tapered backwash. Download insul drain data sheet pdf 372 kb. The use of foamular. The dimensionally stable gemini drain set provides a 4 way slope to the roof drain to prevent ponding and premature roof failure.

As a general rule if the insulation is 2 thick or less a 4 by 4 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. A tapered roof system is completely customized for every single roof from the materials used to how the insulation is laid out. 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.

The standard tapered panel size is 4 x 4. All products in the acfoam polyiso roof insulation family are closed cell rigid foam insulation board flat or tapered. If the insulation reaches 3 or thicker an 8 by 8 creates a more gradual slope while still providing the necessary momentum. Tapered insulation is primarily used to meet slope requirements or to create positive drainage in an existing roof system.

Take a closer look and the choice will be clear. 4 x4 1220mm x 1220mm. The dimensionally stable gemini dst provides a positive 4 way slope to the roof drain. Foamular insul drain insul drain drainage board is designed specifically for foundations to improve thermal foundation performance through a higher r value.

Other slopes are available and provide additional fl exibility for design. 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. Available with acfoam ii acfoam iii and facer technology one piece pre fabricated tapered panel.