It s for this reason that many people choose to go with an overlay roof rather than a full tear off.
Tear off or go over siding.
Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.
It probably isn t insulation board but a 1 4 wrap which is installed to smooth out the surface of the old siding.
The manufacturers specifically say that to install their product over existing siding is to void the warranty.
However the truth is so many variables have to be just right in order to make it work that it s much more likely to cost you money in the end.
But you must take care to install shingles correctly so they lie flat.
A missing or damaged piece of siding can actually let air flow through your home which may render your heating or cooling useless.
Making it tighter and more energy efficient.
I think that best practice is definitely to rip off the old siding then put up new house wrap and siding.
The additional price is mostly related to the extra labor that goes into a tear off roof.
I don t find flashing to be a problem either.
Of course the question of to tear off or not to tear off usually only comes up in vinyl siding installations.
Should i tear off old wood siding.
I believe that there is only one advantage to going over the old siding its cheaper.
More expensive a tear off roofing job is likely to run you as much as 1 000 more.
Many people are attracted by the idea of overlaying existing asphalt shingles especially if the price quoted is lower and the contractor seems confident you don t need to tear off your old roof.
With other siding types fiber cement engineered wood etc.
Tape the flashings to the tyvek and all s good.
If you re unsure whether or not this is the case in your home make sure you contact a trusted vinyl siding company in maryland as soon as possible.
If there have been any previous water infiltration issues whether interior or exterior it is always a recommendation that the siding be taken off so the studs and wall cavity can be inspected to make sure there is no damage.
I agree that you do get a better installation by going over the siding but it s totally allowed by code and most guys out here don t even want to mess with the tear off unless it s absolutely 100 necessary.
You can add 1 foam adding r 5.
When in doubt the experts can help you.
If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing.
