In either case it s a job you can do yourself with a little planning and know how.
How to tear off slate roof.
Standing at the peak use a garden fork or a specially notched roofing tear off shovel to tear away the ridge caps and the top courses of shingles.
Estimating your new roofing system can include various factors like repairs framing strengthening mold removal repairs around skylights sheathing soffits and replacement of flashings.
Replacing a slate roof.
Removing slate shingles is usually done for one of two reasons.
You may be replacing an entire slate roof or simply repairing damaged shingles.
Exactly how much it will cost will vary from region to region and from season to season.
Start the tear off at the section farthest from the trash container.
By now you have some idea about the average cost to tear off and replace roof but now is the time to dig deper.
Why you should tear off an old roof.
There s anecdotal evidence that new shingles installed over old shingles won t last as long as a single layered roof most manufacturers offer the.
Replacement on the other hand needs to take place at some point in the life of all slate roofs particularly those on older historical houses.
A slate roof will easily last over 100 years which is at least double of what other roofing materials can offer.
The rule of thumb among slaters is to push for replacement once 20 30 of the slate has deteriorated beyond reasonable repair.
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Building codes say you can put a second layer of shingles over the first layer but it s better to strip off the old shingles and start with a clean slate.
The good news about changing your slate roof is that you get a new roof which can mean a giving your house a different look or repairing leaks.
The bad news is that removing your slate roof will cost more than removing most other types of roofing.
Many slate tile manufacturers offer up to 100 year warranty on their products.