Lichen On Roof Tiles

Step 2 use a stiff brush such as a pushbroom to scrape away any stubborn mold or lichen patches still remaining.

Lichen on roof tiles. Clean up any organic matter on the roof such as twigs leaves or other debris. While lichens don t damage the structure of roof tiles they can stain the surface of the roof as well as trap moisture. Roof moss and lichen are not only unsightly but can damage the roof over time. If you notice green white or gray spots on your roof moss and lichen are likely the culprits.

In addition to rotting and possibly damaging your roof organic material is one of the chief growing places of both moss and lichen. Moisture increases the chance of mold growth which can damage the roof tiles. When rainwater moistens the strips a tiny amount of metal will run down on your roof preventing the lichen from grabbing hold. This should include inspection for broken and loose tiles checking gutters and downpipes and the removal of any organic material that may have built up such as leaves moss and lichen.

Moss and lichen tends to flourish on roofs in rural areas where trees are nearby and where there are shady damp conditions. Lichen avoids galvanized steel copper and zinc because these metals work as a natural biocide. Lichen on terracotta roof tiles is particularly unappealing to the eye and is best handled before it has a chance to cake in and ruin the tiles. Adding metal strips along your roof s ridge line may inhibit lichen growth.

To remove lichen and.