Roof Drain Sump Insulation

The 1 2 inch per foot slope is used as it doubles the slope of the structurally sloped roof deck which in this case has a slope of 1 4 inch per foot.

Roof drain sump insulation. Roof sumps help the roof shed water more effectively and help eliminate the water pond size if the drain was not installed at the correct height. Now to have a nicely tapered roof only to lead to a 3 by 3 flat sump is going to make a white. The gemini drain set is the only 4 x 4 drain sump that requires no. At roof drains the 4 of insulation can taper down to 3 within the area of the drain sump.

Roof drain sump pans prevent eliminate standing rainwater on your flat roof. This is the industry s first one piece pre cut drain sump. Hunter panels tapered department consists of designers estimators customer service and field personnel. Unless the roof drains are lower than the surrounding roof they will not drain resulting in huge pools of water.

Atlas tapered acfoam products include accessories like the gemini drain set. Tapered insulation panels should be installed around the drain to ensure positive flow of water towards the drain. Placed around the drain the sump created is 8 feet by 8 feet. This can be accomplished by setting the head of the roof drain below the insulation level and by providing a sump at the drain.

The next layer of insulation is 2 5 inches and abuts the backside of the tapered insulation. One mistake that is commonly made with roof sumps is that they are made with extended flat areas. Gemini drain set dst is produced with a closed cell polyisocyanurate polyiso foam core integrally laminated to non asphaltic glass fiber reinforced organic felt or inorganic coated glass facers. As a general rule if the insulation is two inches thick or less a 4 foot by 4 foot sump is sufficient.

Basically 4 of insulation is required with the only exception at roof drains. The dimensionally stable gemini dst provides a positive 4 way slope to the roof drain. Our roof insulation products have zero ozone depletion potential odp and virtually no global warming potential gwp. Hunter pre cut tapered products sumps hips valleys designed to save you time and money.

If the insulation reaches three inches or thicker an 8 foot by 8 foot. Roof drain pans are a fast easy and cost effective solution check out our blog for more good info on this subject. In metal stud walls the requirement for continuous insulation in addition to the insulation within the stud space is new. Localized drainage at drains.

2019 chapter 3 crickets sumps. Tapered backwashes can also help reduce the insulation height at the roof edge. 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.