Unfortunately the money you save by avoiding a full roof replacement comes out of the value of your house.
Roof on top of another roof.
But because of the amount of prep work involved in overlaying a roof properly any savings are usually modest maybe 25 percent compared to a new roof.
More difficult to check deck when you tear off the old roof you get a look at what s underneath.
By placing shingles on top of a damaged roof you ll affect the way the roof looks.
Your house will probably be worth less.
Was inspecting a home on the old navy base in orlando and when accessing the attic they had placed a new roof trusses and all on top of the old roof.
Let me get this straight your saying they built an entire new roof on top of the original one already in place.
Use 1 5 or 1 75 inch roofing nails.
Assuming your old roof is in good shape the additional layer can serve as added protection in case a top shingle gets blown off in a storm.
As you can see there are many benefits to installing a new roof over your existing one and we do many of these for arizona homeowners.
Place the top of each starter shingle firmly against the bottom of the shingle immediately above it and even with the eaves then nail it into place.
I was floored when i saw the old shingles.
If there are any pros to overlaying a roof it s saving a little bit of money.
A common house roof pitch is 5 by 12 which means it slopes up from the wall at 5 inches per foot.
Since it s being put on top of another less than perfect roof it s likely that it may not look as good as a brand new roof would.
Premade trusses will form the skeleton of your new roof above your old roof.
Make sure the pitch of the trusses is the pitch that you want for your new roof.
Chances are your roof structure was designed for a dead load of one layer of shingles plus extra for snow and a safety margin.
The installation of metal roofing is often easier and faster than other roof types and because of its simple design and generally large size can actually be installed directly on top of existing roofing materials like asphalt shingles and foam roofing.
Shingles that are raised or misshapen make it hard to lay a smooth flat layer of new shingles on top.
If your existing roof is fairly old there s a good chance the shingles are damaged.