Slate Roof Stains

The white markings shown on these roofing slates is a mineral deposit left behind as water evaporates.

Slate roof stains.

You can spot a sloped slate roof tile more easily from the ground. Once turned into roofing material slate absorbs water and can naturally de laminate during the freeze and thaw cycles of winter. White efflorescence on roofing slates. Staining on roofing slates.

You can also do a fair amount of checking at ground level. If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it. Stains and wear indicators on slate roofing a photo guide. This quality is what distinguishes slate as a suitable roofing material.

If your slate is looking a little worse for wear do not be alarmed. That warranty should contain a guarantee that if the slate develops pyrite stains ugly. A slate roof can cost from 12 to 40 per square foot according to websites and roofers i consulted. If the tiles have water stains check for any hairline cracks.

Slate is a sedimentary rock with miniscule layers that easily cleave. Take a flashlight and check for water stains on the roof timbers especially after a long period of rain.