The cost can be more for larger homes homes with complex roof designs or when installing more expensive materials.
Replace a slate roof or replace.
When 20 to 30 of the slates on a roof need replacement it is usually more prudent to replace the entire roof than to perform expensive annual repairs.
The cost to replace the roof on most homes is 4 000 to 10 000 and most spend about 8 000.
Replacing a slate roof.
Lost slate replacement re using a slate salvaged from elsewhere is a reasonable repair but if going to the trouble of replacing a roofing slate let s use a replacement slate that itself is in good condition.
When replacement is necessary even a slate roof that has been meticulously maintained will need to be replaced during someone sownership.
They should be on an appropriate timeline.
The rule of thumb among slaters is to push for replacement once 20 30 of the slate has deteriorated beyond reasonable repair.
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.
If more than 10 percent of the total surface of the roof is damaged a.
Neither replacing a slate roof and reusing old flashings nor replacing flashings in a deteriorating slate roof is advisable.
Compare that figure to say 60 per square for a standard asphalt shingle roof.
How long does a roof last.
New slate roofs can cost as much as 900 per square 100 square feet installed.
Before repairing or replacing an existing slate roof it is important to document the existing conditions and detailing of the roof using written visual and physical evidence so that original features can be identified and preserved.
Slate is a rigid natural stone product.
There are several possibilities why your slate is cracking and falling.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
If damaged tiles are found all over the roof the tiles are probably too old to salvage and it s time to replace the roof.
When repairing or replacing a slate roof original details affecting its visual character should be retained.
Broken or missing slates are easy enough to spot.
Asphalt shingle roofs last 10 to 30 years on average metal roofs last 30 to 75 years and clay tiles copper or slate roofing lasts 50 to 100 years.