Roof Water Pipe

The first step in sizing a roof drain is to calculate the surface area of the roof that the drains will be covering as well as the average hourly rainfall rate at the building location.

Roof water pipe.

For pricing and availability. Connect the two elbows near the fron. There are pipe boots installed on plumbing vent pipes that penetrate through roofs. The leaking may first be seen in the attic but if you don t catch it right away you may see water coming into the house dripping on the floor.

A roof that leaks around a vent pipe is a common cause of small water stains on a ceiling or water leaking into a home. When your roof was installed each vent pipe received a flexible boot to seal water around the round surface of the vent pipe. Set your store to see local. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products.

Roof vents are made from different materials. Oatey retro master roof flashing 1 4 in to 4 in x 8 in epdm rubber vent and pipe flashing. It is a vertical pipe attached to a drain line and runs through the roof of your home. Shop for roof drains at ferguson.

The next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout. No matter the type is a pipe boot becomes weathered or damaged a roof leak can occur. Inside diameter black new construction or reroof thermoplastic vent pipe roof flashing model pb 312 4bk 19 97 19 97. Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing.

Dimensions of the pipes that were used are 66 1 2 inches for the two long pieces and 31 1 2 inches for the short pieces. Base flashing 2 counter flashing 22 metal sheets 1 no caulk vent pipe 42 pipe. These boots vary in quality flexibility and longevity. Sizing a roof water drain.

It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system. Water resistant 53 waterproof 55 flashing type. Roof area m gutter flow litres sec roof area m downpipe at centre half round 76mm 0 7 34 0 8 38 112mm 1 8 86 2 6 125 squareflo 3 2 154 3 8 182 125 68mm downpipe 3 8 182 4 6 221 82mm downpipe 4 0 191 4 9 235 regency 4 2 202 4 7 226 highflo 5 4 258 6 0 289 stormflo 110mm 11 1 534 12 4 598 160mm 12 5 601 14 0 673 downpipe at end half. And over time many vent pipe boots get hard and brittle as the punishing hot and cold cycles of sun snow and ice take a toll on your roof.

This is true whether the roof is sloped or flat but the type of pipe boot depends on the type of roof.