As a result geologist emphasizes natural slate durability to last over a century.
Slate roofing faqs.
Natural cleavage allows slate to be split in one direction with the length running in the direction of the grain.
A tiny amount of colour lightening will occur with ceramic tiles but will be imperceptible to the naked eye.
Natural slate is the most durable roofing material.
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Harder slates can conceivably last centuries on a properly maintained roof.
Here are a few more facts about slate.
Any roofing construction that conforms to good engineering practice and is suitable for other roofing material is adequate.
The region where it was quarried determines the life expectancy of roofing slate.
Over the lifetime of a slate roof a certain amount of weathering will occur which is deemed by many to enhance the beauty of the slate.
Softer s2 or s3 slates may last about 55 years to 100 years.
After a detailed research walsh exposed natural slate including cupa 3 to different weather conditions.
One of the drawbacks of slate for some homeowners is the heavy weight of slate roofing tiles which can be between 800 1 500 pounds per square 100 square feet.
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