Slate Roof Discoloration

If the tiles have water stains check for any hairline cracks.

Slate roof discoloration.

You can also do a fair amount of checking at ground level. Buildup of moss and debris on slate roofs hold moisture in the slates that can split them during winter. Historic slate roofs should be repaired rather than replaced whenever possible. When cleaning a slate roof don t use chemicals like ammonia or chlorine bleach.

Moss often grows in the shade of trees too. You can spot a sloped slate roof tile more easily from the ground. Pour it into a pump sprayer strap yourself into a full body harness tie it down and climb to the roof. Regular roof cleaning is critical for your roof as slate is easy to cleave and water absorbent.

Slate roof defect photo library. Also slate is slippery when wet. Before applying the cleaner spray the roof with water to cool it down. Take a flashlight and check for water stains on the roof timbers especially after a long period of rain.

Trees plant debris stains stain patches under trees or nearby may be due to seeds berries leaves and other debris falling and decaying. This slate roofing photo series shows all kinds of roofing slate defects. 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. Here we give photographs of slate roof conditions including normal wear on slate roofs worn out slate roofs types of slate roof wear and damage and stains or discoloration on slate roofs.

Slate shingles do not lie flat against each other and can easily snap under pressure. If your slate is looking a little worse for wear do not be alarmed. Dark black or brown roof shingle stains are often caused by black algae bleed through or extractive bleeding of asphalt dirt soot or organic debris. But there are other roof stain colors and causes.

You can t walk on a slate roof no matter how shallow its pitch. That ll prevent the cleaner from drying out too quickly. The remedies for and means of preventing stains on roof shingles are discussed as well. White stains on slate roofs efflorescence or salt stains from rain water sometimes appear on slate shingles.