The structure of your roof and its shingles work hand in hand to protect your home from damage due to moisture. When it comes time to replace your shingles, you will need to check for damage and repair any issues in the shingle installation. Here are some recommendations and ideas you can use and apply when you are planning to install a new asphalt shingle roof on your home.
Tear Off or Overlay
It may seem like an easy choice to overlay a new layer of shingles over the existing roof because it saves you a great deal on labor costs when you don't have to tear off the existing layer of shingles. Building codes in most areas allow for you to have up to two layers of shingles on your roof's surface. As such, if your roof's shingles are aging and need replacement, you may be able to skip tearing them off.
However, there are some situations when you should tear off the single layer of shingles before you install new shingles, and this can be determined by the condition of your current shingles and if you have had any recent issues with your roof. For example, if you have noticed moisture leaking into your attic space or down into an interior wall of your home, you should have the old shingles removed so your roofing professional can evaluate the problems for repair within your roof.
Or, you may have had a tree limb fall on your roof that damaged some of the shingles during or before heavy precipitation. This situation can expose your roofing deck to moisture, which you should have inspected before you install a new layer of shingles on the roof. On the reverse, if your roof has been aging, the shingles are all still intact but have begun to curl up at the edges, and there have been no other indications you have moisture intrusion, you can apply a new roof overlay.
Inspect Your Roofing Deck
When your roof already has two layers of shingles or you suspect there is damage to the roof below a single layer of shingles, you will need to tear off the existing shingles before applying a new layer. This also provides you the opportunity to inspect your roofing deck for any problems with its structure or integrity. Your professional roofer can complete this inspection to look for signs of dry rot or moisture damage onto the roofing deck.
Often when there is moisture damage to the roofing deck, it has passed through the roofing felt and has begun to enter into your attic space. This can get into open-cell batting insulation and the wood support structure of your roof, which your roofing professional can help you mitigate. Contact an asphalt shingle roofing company for more information.
When there are things about your business building that are damaged, you can expect it to cause problems in the long run. From issues with getting top dollar for your property to dealing with incoming leaks and other issues, it pays to know how to make changes now that could improve your future. However, roofing issues can be hard to spot, which is why it really pays to do what you can to make steps towards fixing things. On this website, you can find excellent information about how roofing can be beneficial to your company, and what to look for when problems arise.