Ripping up an existing roof to install a brand new roof can be expensive. However, there are options that allow homeowners to save a little bit of money. If the existing roof is in good shape and exhibits no rot, water damage or leaks, a Monmouth County Roofing contractor may be able to lay down a brand new roof over the old one.
As with any home improvement option, there are certain advantages and disadvantages to adding a roof on top of an existing roof versus removing the old roof before installing the new one. The biggest advantage is the savings. Simply overlaying new shingles on top of old shingles can save up to 25 percent of the cost of adding a new roof. Additionally, as long as the existing roof is in good shape, an overlay avoids the mess and the labor involved in removing the existing roof.
While an overlay can be a good option for some homeowners, it should be known that there are some major drawbacks. One of the biggest cons is that adding a new layer of shingles means that homeowners or contractors can’t properly inspect the roof sheathing and underlayment. If water finds its way beneath the shingles, which happens more often than many people realize, it can get into the roof’s decking and cause damage if the underlayment has deteriorated.
Another con is that adding shingles to a roof without removing the old ones first adds weight.
Depending on their quality, a layer of shingles can weigh up to 450 pounds per 100 square feet of roofing. Most roofs are designed to hold one layer of shingles plus any snow that may fall. On homes that have roofs that were not designed to carry the weight of an extra layer of shingles, the roof decking or sheathing can actually sag.
Finally, shingles are designed to be installed on surfaces that are flat. If the old shingles are somehow misshaped, correctly laying down new shingles can be a bit of a challenge. Any defects in the old roof will be seen in the new layer. If the old layer is in good condition, a professional roofer can lay down the new shingles in a way that maintains the same step-ups. Regardless, overlaying a new roof may affect the warranty on the new shingles as most are not designed to be laid down over an existing roof.
Homeowners who are seriously interested in overlaying versus an entirely new roof may be interested in having a metal roof placed over existing shingles. While they cost more up front, they also last longer than a second layer of shingles while providing energy savings. Regardless of what type of roof is desired, homeowners should ensure that the original roof is in good condition before considering an overlay. Have a question regarding skylight installation or new gutters? Ask a roofer from Fortified Roofing of Monmouth County NJ.
Common roofer term explained by Fortified Roofing of Monmouth County NJ:
Roof decking is a layer made out of plywood, corrugated metal, OSB sheathing or other similar materials that are attached to the roof’s trusses. Not only does the decking layer provide a flat surface for the installation of shingles, it also provides a layer between the interior of the home and the elements.
Monmouth County roofer Fortified Roofing answers a question:
What can happen if I install new shingles over old shingles that have been damaged?
If the old layer of shingles have been damaged, it is likely that the structural components of the roof have been damaged as well. Adding a new layer of shingles will not keep out the elements; in fact, moisture can get under the new shingles and damage the structural components of the roof even further. Ultimately, it is likely that that both the new layer of shingles, the old layer of shingles and the structural components will need replacement.
Rated 4.7 out of 5 stars based on 8 customer reviews.
I had my roof replaced by Fortified Roofing and they did an amazing job. I’m really happy with the service and price.
John and his people done a wonderful work at my house. All the work completed is at very high standards with reasonable cost. They completed Facia, Soffits and roof at my house. I would definitely recommend Fortified Roofing Ewing for the services they offer.
The boys at Fortified Roofing did a great job on my roof in Brick. I had an old rusty tin roof and went for a roof replacement – I love it. The process was easy and I was kept informed the whole time. No more leaks. Thanks very much John.
Just had my roof done by John an the boys from Fortified Roofing Brick, great job and easy to deal with. Really happy with the price and service.
Had such a good experience with Fortified Roofing from Brick! So helpful and my roof looks great. Thanks John and the team!
John was really helpful at explaining all the options to get a great solution to fix our roof in Brick NJ! Appreciated the effort to fit our roof repair work in, even though they were already very busy and so we’re more than happy with the end result.
Very professional company, technicians are incredibly helpful and nice! I highly recommend giving Fortified Roofing Ewing a call if you need your roof repaired!
Everything ran smoothly. The crew was in and out before I knew it. Roof looked great. Site was spotless when they left . I haven’t found any old nails on the ground. They cleaned up beautifully. They did everything that was promised.
I would definitely recommend this Company. Friendly and courteous from start to finish.
Oh My! People say such nice things!