Louisville Roofing Contractors Guide To Roof Flashing

Posted on: May 9, 2015 by in Roof Repair
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Properly installed roof flashings are considered as the most important factor in keeping a Portland roof performing well over time. Waterproofing the roof is vital for the integrity of the building, and one of the most important steps for doing so is the installation of the roof flashing. A material installed over the roof deck prior to the application of the primary roof covering. When re-roofing your home, the proper installation of flashings and edge flashing details is one of the most important steps to a successful roof system. By using the existing roof as a base, a SureCoat Roof becomes a sustainable roof system that never creates toxic roof material waste. Your contractor will even explain roof flashing details to you, so you will know where your money is going and how the flashing will protect your home.

Roof Flashing

Damaged Lead Flashing

The counter flashing is a separate piece of metal or building material which laps over the base or step flashing. At the inside corner, where the two walls meet, there is a final step flashing that has been cut, bent and soldered. An apron flashing is the first piece of flashing installed along the bottom side of the chimney. When metal is being used, the valley flashing should be installed with W-shaped metal rather than V-shaped. The next step in completing the chimney flashing installation is to notch the counter flashing ends and bend them around the chimney sides. For roof-to-wall flashings, the flashings should be cut into or extend up behind the wall covering. Louisville Roofers have experience in all of the types of flashing and their application

Ell flashing is designed to bridge the roof to wall transition and allow for protection against water intrusion. Every place there is a roof penetration or the roof makes a transition to a vertical wall, flashing must be applied so water stays out of your home. The kick-out flashing directs water away from the adjoining wall and ensures that the step flashing is not concentrating water on the surface of that wall. All lap joints shall be shingled to shed water toward the drains, scuppers, etc. Roof flashing should be installed anywhere two roof surfaces meet or when there is any kind of penetration into the roof. Roof flashing is a critical part of preventing leaks and water seepage in your roof.

A tile roof made with flattened sections of bamboo is laid in the same way as any other flat tile or shingle roof. When you weatherproof an asphalt roof with roof flashing, you will help to extend the life of the roof. Asphalt shingles can be laid successfully over any existing roof. Dimensional shingles are very similar to composition shingles, but are thicker, and can be used to create a more custom appearance. With Class A asphalt composition shingles, use of metal flashing can be avoided by interweaving the shingles. Metal shingles should be nailed to the roof deck, using nails made out of the same metal as the shingle.

Internal roof flashing is used underneath your roofing material to prevent water from leaking into your roof or home. Any mishap could result in unnecessary roof leaks and damage to not only your roof but also to your home internally. As you can easily see, if the shingles fail and allow water in, felt is incapable of redirecting the water away from the home. When you have a leak, you often think the roof itself is the culprit. Because closed valleys are not visible from the roof, the only sign of damage is usually a leak directly under the valley. There are many areas for water to penetrate on your roof.

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