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When most people think of the roofs, they only think of the actual roof covering such as asphalt shingles. The roof covering is undoubtedly an important part of your roof, but there is much more to your roofing system than what you see. A roofing system is composed of several components including the covering, underlayment, vents, pipes, drip edge, decking, and more. Since every roof is different, every roof will need several types of work performed on it during replacement to bring everything up to code and looking great. 
Depending on what condition your roofing system is currently in, the roofer may decide to replace the entire system all the way to the decking. If your roofer has talked to you about redecking your residence, you likely want to know what redecking is and what’s involved. Let’s review what redecking is, and why you may need to have your home redecked.
So, What is Redecking?
The primary layer that your roofing system is built on is known as your home’s decking or sheathing. Most residences are decked with plywood or OSB to serve as the base for your roofing materials. Like anything else on your roof, this decking may break down over time and need to be replaced in a process known as redecking. Now that we know what redecking is let’s review some reasons you may need to redeck your roof.
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Space Decking
Homes that are roofed with wooden shakes or shingles utilized an older type of decking to allow the air to flow between the shakes and ventilate the home. Unfortunately, this gapped decking known as space decking is no longer up to international building code. If you are having your roof changed from wooden shakes or shingles to asphalt shingles, you will need to redeck over the old decking to bring your home up to code.
Rotten Decking
Wood does not last forever, and if your home’s wooden decking is bowed, waterlogged, rotted or otherwise compromised, it will need to be replaced during reroofing. You may need only a few sheets replaced, or you may need to redeck the whole area.
The good news is that your insurance may help you out if you need your home redecked. The best way to find about your home’s decking is by hiring a local roofer with a compelling reputation. An expert roofer can let you know why your home needs to be redecked, what your options are for redecking, and if your insurance can help you out. With a local roofer on your side, your home will be redecked and in perfect condition for your new roof.
Ice Dam
Celtic has vigorous protocols for preventing ice dam issues and installs Ice and Water Shield on EVERY roof. This goes on over the redecking and is vital for the prevention of ice dam formation here in Colorado. Learn more about preventing ice dams on your roof here:
www.CelticRoofing.com/the-dreaded-ice-dam
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