Slate Roof Stains

Slate is a beautiful and popular medium for fireplaces and patios but it is highly susceptible to stains from water and hard calcified deposited stains under pots and other items.

Slate roof stains. You can also do a fair amount of checking at ground level. Staining on roofing slates. Stains and wear indicators on slate roofing a photo guide. Once turned into roofing material slate absorbs water and can naturally de laminate during the freeze and thaw cycles of winter.

This quality is what distinguishes slate as a suitable roofing material. If the tiles have water stains check for any hairline cracks. Slate is a sedimentary rock with miniscule layers that easily cleave. White efflorescence on roofing slates.

That warranty should contain a guarantee that if the slate develops pyrite stains ugly. The white markings shown on these roofing slates is a mineral deposit left behind as water evaporates. Here is a diagnostic guide to types of stains and staining materials found on roof surfaces black red green brown or other coloured stains on asphalt roof shingles or on other roofing materials need first an accurate diagnosis of the stain cause and then proper steps to remove the stain or to prevent future staining on roof shingles surfaces. If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it.

A slate roof can cost from 12 to 40 per square foot according to websites and roofers i consulted. Take a flashlight and check for water stains on the roof timbers especially after a long period of rain.