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"Response time for roof repair was outstanding. Problems, to my knowledge, were thoroughly investigated and described to me prior to work being accomplished. Price was higher than other vendors but may prove to be acceptable if problems have been solved. The result of the repair will not be known until another heavy snow and/or rain storm with high winds is experienced. The warrantee on workmenship is only six months which may not allow for a full years cycle of weather conditions. Otherwise, I left thinking the job was done very well and professionally."
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Is A Roof Valley Needed?

July 29, 2011 by Roofer911 - 1 Comments

Did you like this?

open roof valley What is a roof valley anyway? When two roof surfaces meet on the inside corner of an ‘L’ shaped building, where they meet is called the valley. This can be a critical juncture on a roof because double the volume of water is directed at a crack during a storm. Valleys can be built just for utility, or can also be a decorative element.


A valley can be open or closed. An open valley is one where shingles come up to a 'W' shaped piece of valley metal. A closed valley is where shingles are interwoven to form the valley. Shingle manufacturers put instructions on the package wrappers for the methods they recommend in order to maintain the warranty. Some manufacturers have switched wrapper instructions from closed to open valley because few people installed correctly. Closed valleys are sometimes installed with methods called Tamko, Long Island, or California cut, or even woven.


Open valleys use valley metal which comes in colored aluminum or can be copper, which is longer lasting and more expensive. The valley metal can blend or accent your choice of roofing materials. To protect this area, ice and water shield can be installed on top of roof decking. This is a stretchy, sticky underlayment that seals itself against nail holes, and gives with minor structural shifts. Rolled roofing can be laid the length of the valley on top of this before the valley metal. Protecting your roof valley with proper installation prevents water damage in your house.





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Comments

1 Responses to "Is A Roof Valley Needed?"

League City Roofing Contractors says:
May 26, 2012 at 6:17 AM


Ice and water shield have also taken the place of valley metal. I/w shield creates a great valley, if punctured by a nail it is a self sealing membrane.


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Roof Repair, Infrared
We had a great experience with Roofer 911. Steven was able to give us an estimate the same day we called and the price was very competitive. He was very thorough in his explanation of the problems and kept us updated during the process. The work was completed in a timely and professional manner. We will definitely be repeat customers!
Kathi Stevensonbusiness
Fairfax, VA
April 19, 2013
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Blog Categories
Submit Your Blog

Attic

Black Mold

Cedar

Clay Tiles

Commercial Roofing

Flashing

Green Roof

Gutters

Ice Dam

Infrared

Insulation

Insurance

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OSHA

Roof Cleaning

Roof Inspection

Roof Repair

Roof Replacement

Roof Ventilation

Roofers

Roofing Companies

Roofing Supplies

Siding

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Slate

Solar

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Tile



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