Slate Roof Deterioration

Failure to recognize this problem and fix it can lead to rapid roof deterioration and complete slate loss.

Slate roof deterioration.

A properly installed slate roof can last for a century or longer which is a vast improvement over many other roofing systems that only last 15 20 years. Slate roof central how to identify roof slate. A professionally installed and well maintained slate roof generally doesn t require fastener replacement. The more rapid deterioration of slates found on roof slopes with the most severe exposure to the sun wind and rain typically but not always a southern exposure may be attributable to the combined result of the deleterious effects of impurities in the slate and mechanical agents.

This is a generalization as some of these slates fail sooner some last longer. 4 pennsylvania black slate below from the lehigh northampton slate district tends to be the soft slate with a life expectancy of 75 125 years. Wind high winds lift curl and pull shingles away from the roof exposing its underpayment which can leave your roof vulnerable to water damage and significant structural deterioration. However excess moisture may lead to a more rapid deterioration of these materials and necessitate their replacement at some point.

These determine the density and composition of the slate. Atmospheric acids produce only negligible deterioration in. The corners the edges of the roof and the ridge line are especially susceptible to damage from high winds but the entire roof structure often ends up.