If your shingles are looking faded and patchy, it may be time to install a new roof. However, there are two main options for installing a new roof: you can either have the roof entirely replaced, or you can have a roof overlay installed. Both processes are fairly distinct, despite fulfilling the same purpose, and thus each carry with them a unique set of advantages and disadvantages. Understanding the differences between a roof replacement and a roof overlay can help you choose the one that best fits your needs.
Roof overlays are exactly what their name suggests: a new roof is simply laid over the old roof, covering up the old shingles with new ones. There are two main draws to getting a roof overlay: firstly, it is the more affordable option when compared to installing a new roof, as the old roof does not have to be removed and disposed of. Secondly, roof overlays can be installed very quickly, because, as previously stated, the old roof does not need to be disposed of.
However, roof overlays have a number of drawbacks. First of all, the new roof will not sit as evenly on the roof due to the previous layer underneath, which can affect the lifespan of the roof. Additionally, any damage to the roof itself will go undiscovered, as the old roof is still installed. Finally, in the event that you do decide to remove the old roof, it will now be more expensive, as two layers of shingles are now on your roof.
Roof replacements are when the old roof is torn off and replaced with a new layer of shingles. This allows for the roof underneath to be inspected for damage, which can help reduce the likelihood of leaks and water damage occurring in your home. Additionally, a newly replaced roof will have a longer lifespan when compared to roof overlays, as there is no additional layer of shingles underneath that can cause heat and moisture to build up, or cause the new shingles to sit unevenly on the roof.
However, the main drawback of a roof replacement is that it tends to cost more than a roof overlay. The exact amount will depend on the size of your roof, but the increase can be such that a roof replacement is not viable for some homeowners. For more information, tlak to a professional like Roof Repair by Dave Merkley Roofing.Share