Slate Roof Stains

Staining on roofing slates.

Slate roof stains.

You can also do a fair amount of checking at ground level. Stains and wear indicators on slate roofing a photo guide. If the tiles have water stains check for any hairline cracks. Take a flashlight and check for water stains on the roof timbers especially after a long period of rain.

Slate edges showing moisture absorption but generally good condition these slates have a good remaining life. 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. This quality is what distinguishes slate as a suitable roofing material. Slate is a sedimentary rock with miniscule layers that easily cleave.

White efflorescence on roofing slates. A slate roof can cost from 12 to 40 per square foot according to websites and roofers i consulted. If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it. That warranty should contain a guarantee that if the slate develops pyrite stains ugly.

If your slate is looking a little worse for wear do not be alarmed. You can spot a sloped slate roof tile more easily from the ground.