Purpose Of Roof Flashing

The purpose and application of roof flashings.

Purpose of roof flashing.

It is thin and flat and supplements the underlayment of a roof. What is the purpose of flashing on a roof. Flashing is composed of different metals such as stainless steel galvanized steel aluminum or copper. Otherwise their curbs are flashed with continuous flashing along the base step flashing up the sides and saddle flashing across the top.

The roof of a residential home serves one major purpose and that is to be a barrier against the weather outside. Flashing is a weatherproof material. Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer. Flashing is installed to surround roof features such as vents chimneys and skylights.

The purpose of roof flashing roof flashings are fitted primarily to maintain a watertight roof. The primary purpose of roof flashings is to keep water out of the places which they have no business being in. Flashing is made out of durable material that is specially fitted to reinforce the weakest parts of a roof system. Skylights often have their own integral flashing.

This is why flashing is essential to the keeping of a house in good condition. Where flashing is used. Flashing is a material designed to keep moisture from entering the home through the roof. It aids in keeping the underside of shingles from getting wet.

For pitched roofs regardless of the application or type of flashing used the purpose of flashing is to direct the flow of water that leaks into the intersection down and away from the interior of the structure to the topside of the roofing material. Without a flashing fitted rain water would run down the chimney or the higher area of roof tiles and just disappear into the house interior where the chimney rises through the roof. The most difficult weather element to control is water and roof flashing acts as the last line of defense against water leakage. Flashing protects a building from harsh weather.

Otherwise water would be like a cancer slowing devouring the house from the inside out. They are generally installed when. With the help of underlayment roof flashing is required on your roof to keep water from getting underneath your shingles. It redirects water flow away from the interior of the building thus providing a defense against the major problems that can result from roof leaks.

So exactly what is flashing and its purpose. Vent pipe flashing prevents leaks from occurring where pipes penetrate the roof surface. Without flashing roofs would be unable to withstand rain heavy winds or the freeze thaw sequences of winter.