Installing Roll Roofing And Flashing

Cut a hole in the roof just large enough for the vent pipe and lay the strip into place.

Installing roll roofing and flashing. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Set it in a bed of roofing cement smooth out any creases and drive nails near the edges. You can install metal valley flashing but it is common to simply apply an 18 inch wide strip of roll roofing instead. How to install roll roofing on low slope roofs.

Install an asphalt roll surface with polymer bituminous flashing on a low pitched but not flat roof. Water can accumulate in the roofing or flashing on a flat roof causing ponding that will eventually result in rotted underlayment and a roof leak. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. However roll roofing does not look nearly as good as shingle or tile so it is typically only used on roofs that are not readily visible.

Then install metal vent flashing over the pipe coating the roofing with mastic first so that the metal flange is embedded in it completely. Provide 6 inches of overlap under each side of the flashing. Nail around the flange every two inches. Once even a small section of roofing cement fails you ll have a leak.

Setting the roll and then nailing off. Check the sheathing for any nails or screws that may be. Extend the front edge of the drip edge so it runs off the roof and into the. Starting a roof with tarpaper felt.

This video walks through the very basic steps for installing tarpaper felt. Attach drip edge along the edge of the roof with roofing cement. Things you ll need rolled roofing razor knife trowel brush hose measuring tape ladder roofing cement 1 inch 2 5 cm long roofing nails hammer chalk. Open valleys have metal flashing to protect this critical area of the roof.

Install drip edge flashings roofing felt and wsu if needed. Step by step roll roofing installation 1. Clean the roof with a broom to remove any debris. Lay it from the bottom of the roof to the top ensuring 4 inches of overlap at each base line.

But it doesn t work that way. Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the. This aluminum flashing protects the edges of the roof sheathing. It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.

While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. How to install polymer bituminous flashing.