At a certain point in the life of a ribbon slate roof the slates may start to break at a faster than normal rate.
Ribons on slate roofs.
A ribbon slate roof is not necessarily a bad thing as the quality of some ribbon slates is better than others.
Often the ribbons are diagonal depending on how the slate was quarried.
Of the interior 1922 famed geologist oliver bowles declared that the ribbons were of no consequence to the longevity of the.
100 to 200 years.
Other factors in roof longevity.
Vermont and new york slates.
References about slate roof durability at least among home inspectors and some slate books claim that ribbon slates were inferior and likely to have a shorter life due to.
In the technology of slate bulletin 28 dept.
When replacement is necessary details contributing to the appearance of the roof should be retained.
175 years or more.
This may be the time to consider replacement.
Pennsylvania or ribbon slates.
Slate from different mines has different average slate roof life expectancies with proper installation and regular maintenance.
Slate roofs are a critical design feature of many historic buildings that cannot be duplicated using substitute materials.
125 to 175 years.
Slate roofs can and should be maintained and repaired to effectively extend their serviceable lives.
Slates with diagonal or striped inclusions of varying colors or ribbon slates include products with a very long life expectancy and other ribbon slates that are or were a low priced slate with soft inclusions short life and leaks.
Ribbon slate is roofing slate with linear colors running in stripes through the slate material.