Decking is the plywood siding that is placed under your roof shingles and is not always replaced in every roofing project. In fact, if the deck appears to be in good condition, an honest roofer will usually leave it alone. The topic of plywood has come up and 2 have said that we definitely need to replace plywood, even if it looks good. Because plywood lasts between 30 and 40 years, we run the risk of delamination and the need for replacement in a few years.
You might be surprised to hear that you need to replace the plywood under your roof. Leaks and serious damage can cause plywood to rot, making the roof very dangerous and ineffective. You may have questions about this process and what type of plywood your roofer will put on, so here are some answers. Roof decking refers to the thin wooden planks that go through the trusses and support the rest of the roof.
Once you have discovered that your roof covering is rotting, you should contact a contractor and have it replaced as soon as possible. The drip edge is the metal flashing that is installed on the edges of the roof to help control the flow of water away from the fascia and other components of the roof. Even so, you can divide the main causes of roof replacement and repair into four very general categories. You should also ensure that your roof manufacturer will continue to honor your warranty, even if you have an old roof under your new product.
Bill Ragan Roofing has helped educate homeowners in the Nashville area on all aspects of the roofing industry since 1990. Yes, faulty gutters can cause roof leaks by allowing water to build up on the roof or wear on the roof edge. However, if it is damaged, rusted, or if you are upgrading from a 3-tab asphalt shingle to a dimensional shingle, the roof flashing will need to be replaced. It is a combination of different roofing materials and components that come together to form a complete roof system.
He quoted me for replacing the shingles and I asked him about the fact that there are some undulations in the roof of the plywood starting to warp. Unless you know for sure that it needs to be replaced, it's a little silly to insist on replacing it because it can double the cost of the work. However, the truth is that unless the roof and roof fall down, you won't know the true state of the wood until the roof is removed to the existing deck. Rotting plywood cannot support the weight of a roof in the same way as healthy wood, nor can it securely hold nails placed in the roof and hold them firm.
If you're going to spend the money to replace or repair the plywood deck under your roof, you want it done right. The common problem is that the roofer sees that his work only deals with the roof covering, and tends to ignore the other aspects of the roof system, such as air sealing, insulation, ventilation, structural supports, roofing and waterproofing.