There are two roof installation methods: overlay, which involves installing new shingles over the existing ones, or tear-off, in which the old shingles are torn off before the new ones are installed. How can homeowners determine which method is needed for their residential roofing project?
These are the things you should do before launching your roof replacement project:
Determine How Many Layers of Shingles Are on Your Roof
This is essential because it helps you measure how much weight your roof structure can accommodate. It’s also necessary information for determining whether you’re in compliance with your local building codes. For example, some cities have codes that prohibit more than two layers.
If you are uncertain about the policies in your area, consult a roofing contractor. You can also ask your contractor to help in verifying regulations or acquiring permits for roof construction to ensure you are in compliance with the local building codes.
Check for Existing Roof Issues
It’s important to understand what your roof needs to maximize its service life. If your roof needs minor repairs, re-roofing may be a good option for you in terms of saving time, money and effort. However, if you spot signs of more serious deterioration like curling shingles, a complete roof tear-off is likely the better solution as that will provide comprehensive protection for your roof.
Search for Compatible Roof Shingles
If you choose the overlay method, you need to choose the same type of shingles as you currently have. This can be a problem for homeowners whose roof was installed many years ago, as the original shingles may no longer be available.
Not only can installing different shingles from what you currently have compromise your home’s curb appeal, it also poses a threat to the integrity of your roofing system. It could threaten the structure of your roof if the weight isn’t taken into account, potentially leading to water damage inside your home.
A1 Siding and Roofing, a leading commercial roofing company, has been in the business long enough to determine which method would be best for your home. Your complete satisfaction is our top priority when it comes to our products and services. Call us at (603) 684-2444 or fill out our contact form for a free project estimate. We serve customers in Manchester, NH.