Another great perk of tearing off is that it exposing the roof deck.
How many layers for fixing the roof.
Ancient flashings more roof leaks happen at the flashings at roof valleys and penetrations than in the field.
If the homeowner has to replace the roof contractors will charge extra to remove the second layer of shingles he says.
It depends on local codes how your roof is built notably how many layers of roofing it already has and how pristine you want the new roof to look.
A roof replacement involves tearing off everything on the roof down to the deck then putting on new felt paper and shingles.
Costs much more next time three layers of shingles is not allowed by the building code so the tear off labor you saved on the double layer roof will cost you much more on the next roof.
Pros and cons of a new roof vs.
The roof is arguably the most important component of your house.
Here are the layers of a roof in order of application bottom to top.
Most homeowners never get up close to their roof.
All you see when you look at the roof are the shingles slate or tile on top.
Some roofing felts are actually glued down.
These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof.
The main advantage of leaving the old roof on is obvious you can minimize the mess removal costs and disposal expense if you can leave the old shingles in place.
Fixing a roofing issue can be expensive depending on a variety of factors including the pitch and slope of the roof.
So let s say we have a hail storm and the roof takes a beating.
After all it keeps water out of the building.
There s no way around it.
The weight of the roof is of concern roof trusses and decks are only able to hold up so many layers of roofing.
And while nobody likes having to pay to replace a roof the critical and aesthetic function it serves should help ease the pain of spending 8 000 to 20 000 on the work.
Finally it takes more time to inspect a roof deck that s damaged by a major storm or make repairs to a roof with two layers of shingles richards says.
If you re cleaning your gutters you probably do get a birds eye view but don t realize there are many layers that make up your roof.
If the roof has multiple layers typically the insurance company will only insure the top layer.
Adding more weight than your roof is designed for can cause structural damage to the building and cause a dangerous situation for anyone in it.
If it needs to be replaced the insurance policy will only cover the replacement of the top layer.