The roof deck is the supporting structure for your roofing shingles. Whether you are using asphalt shingles, metal or tile for your new roof, the roof deck must be in good condition and able to support them. Here is what you need to know about your roof deck when you are considering a roof replacement.
The roof deck is simply the wood structure that holds the shingles. It is one of the primary components that holds the entire house together. It ties the structural pieces to each other and is simply the most important item in the entire roofing system.
When you are in your attic, you can see the underside of the roof deck. If water breaches the roofing shingles, it will gradually rot the roof deck, creating the need for more repairs. The roof deck also dictates how the finished roof will look. If panels in the roof deck are bowed or sagging, the finished roof will also sag or bow.
As the seasons change and the water cools or warms, the panels in your roof will expand and contract. It is necessary that the roof deck have proper expansion gaps to allow for this process. Roof deck panels fitted too tightly together will ultimately collide with each other and cause problems, such as bulges, valleys and ridges.
Felt paper is used to protect the roof deck from chemicals that can gradually seep out of asphalt shingles. The felt paper will also prevent shingles from catching on these expansion gaps as the boards gradually shift. Finally, the paper will prevent the shingles from sticking to and damaging the deck as the weather shifts.
There must be adequate ventilation in the attic to keep your roof deck solid and clean. When there is not enough ventilation, condensation can build in the attic and result in mold problems on the roof deck. Left untreated, the problem can grow to the point that an entirely new roof is required.
There are times when a roof simply requires an entirely new deck before the roofer can proceed with replacing shingles. Other times, individual parts of a roof deck may be repaired to get it back in top condition and ready for shingles. It is important that the roofer thoroughly inspect the roof deck before the new roofing materials are installed.
At Robbins Roofing, Inc., we have more than 60 years of experience in roof repair and roofing. We will take the time to inspect your roof deck and advise you of the options available should we find problems. We do this to ensure that your new roof will last as long as possible and keep your house safe and dry. For more information, please visit us on Facebook.