Rigid Insulation Slope To Roof Drain Dimensions

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.

Rigid insulation slope to roof drain dimensions.

Find out why in the seller s fact sheet on r values. Higher r values mean greater insulating power. The standard tapered panel size is 4 x 4. Tapered expanded polystyrene eps roof insulation was developed more than 30 years ago with a dual purpose in mind.

If the insulation reaches 3 or thicker an 8 by 8 creates a more gradual slope while still providing the necessary momentum. Gradually tapered sumps formed in the insulation to facilitate localized drainage at drains. Tapered roof insulation systems are designed to provide a 1 savings vary. A typical interior roof drain assembly occupies about a 4 foot by 4 foot square area with a inch per foot tapered slope.

Because of its size and customization options tapered eps often can be installed in a single layer. As a general rule if the insulation is 2 thick or less a 4 by 4 is sufficient. Simplifying the job with eps 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. A typical interior roof drain assembly occupies about a 4 by 4 square area with a per foot tapered slope.

As a general rule if the insulation is two inches thick or less a 4 foot by 4 foot sump is sufficient. To drain and insulate dead level roof decks. Tapered rigid insulation is polyisocyanurate insulation or eps insulation custom manufactured to provide a slope. 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.