A roof can only have one layover done.
Roof layover advantages.
A properly installed layover roof can look and function as well as one installed after tearing off the existing roof and is typically more convenient and less costly.
Trying to determine if wind caused the loss of adherance or if there was an installation issue.
Some insurance companies will not pay for a new roof if the.
Therefore if your roof already has two layers of shingles layered separately you cannot have a layover done on top of it.
The roof does not leak and the seams are tight and the appurtenances are all sealed tightly.
Typically doing a layover is more economical although homeowners need to discuss relevant factors with their contractor including local building code requirements and implications for the manufacturer s warranty.
Layover may be a good option for those homes whose asphalt shingled roof is old enough to be replaced but the overall structure of the roof is sound.
Since the roofers have to take off all of the shingles they get a clear look into what s going on with your roof so the finished product will be perfect.
The old bur roof was removed and the tpo was installed over the existing fiber board.
Metal roofs offer energy savings but do cost more upfront than traditional asphalt shingles.
Flashing is essential for protecting the most vulnerable areas of your roof and a getting a new roof is the perfect time to inspect those areas and upgrade your flashing.
That said overlaying asphalt shingles with a metal roof could be an option provided there is no underlying damage.
One major advantage of doing an overlay versus a tear off is the amount of labor involved.
Not all homes are built to withstand the weight of two roofs.
Don t rob yourself of that significant benefit by accepting a purely cosmetic layover.
Although many metal roof.
A layover is less expensive.
Some roofers install a layer of waterproof shingle underlayment wsu over the existing shingles at the eave end as would be done for a roof laid on bare sheathing.
This is because you get to skip the whole process of tearing up the existing roof.
Since you do not tear off old roofing shingles a layover can be done much faster and it is supposed to be a cheaper alternative to complete roof replacement.
They also last longer and stand up to foul weather better than shingles.
That is to say that laying down a new roof on top of the existing roof saves hours of labor.
If you had any rotted decking or leaks in your roof they ll be gone with the new roof.
