Roof Flashing Purpose

Flashing is a material designed to keep moisture from entering the home through the roof.

Roof flashing purpose.

What is the purpose of flashing on a roof. Flashing is crafted to surround roof features such as vents chimneys and skylights. Flashing is also utilized where the slopes or valleys of a roof meet as well as with protrusions such as venting and skylights. This is roof flashing and its main purpose is to water away from the roof surface.

Roof flashing is a thin layer of metal sheeting used to direct water away from seams and joints where moisture could penetrate the roof and cause water damage. Flashing is designed to protect roofs from rain ice snow and wind but it is not invincible. If the weather is harsh enough it can damage destroy or even wholly remove flashing from a roof. 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.

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. After a long enough stretch flashing will succumb to age and will require repair or replacement. It is usually found where the surface of the roof has contact with a wall such as the sidewall and front walls of a home. With the help of underlayment roof flashing is required on your roof to keep water from getting underneath your shingles.

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 purpose and application of roof flashings. The purpose of roof flashing roof flashings are fitted primarily to maintain a watertight roof. Flashing is used in various sections of a roof.

The unsung hero of the operation is roof flashing.