Apart from the problems that can go unnoticed during the actual shingle roof over, there are long term effects to consider as well. For instance, instead of just one roof on your home, you now basically have two. That’s a lot of weight, putting added stress on the roof decking. Also, two layers of roof shingles are going to attract a lot more heat than just one layer, which can lead to the shingles prematurely deteriorating. In addition, what about all that dark algae growth and bacteria on the original layer of roof shingles? Now all of that is trapped under a second layer of roof shingles, again having the potential to shorten the lifespan of the top layer of roof shingles.
If you haven’t noticed yet, we are not fans of shingle overs at all. That is why we don’t recommend them. Does it cost more to tear off? Yes. However, by spending a little more now, you can save yourself thousands in the long run.
If you need help tearing off your existing Maui roof, give Maui Pacific Roofing & Repair, LLC, one of the best roofing contractor in Maui, a call today!