How To Stop Moss Growing On Concrete Roof Tiles

There are two remarkably simple ideas to stop the accumulation of moss on roof tiles.

How to stop moss growing on concrete roof tiles.

The first moss killer for roofs option is to fix a strip of zinc along the apex of your roof. Stop a moss problem from returning by installing strips of zinc or copper coated sheet metal just below the top ridge. Rain falls onto the strip and creates an alkaline liquid which trickles down the roof and kills off the moss by making the environment inhospitable to it. The more sun that can reach your roof the less moss you will have there.

Add a 2 inch thick strip of copper across the ridge of your roof as close to the pitch as possible. Removal of moss from roof tiles often requires the services of a professional contractor but there are also easy things you can do at home to prevent moss from growing on your roof tiles. If you re uncomfortable on the roof or if the pitch of the roof is too steep you might want to hire a professional for the job. If your roof is larger than average you might need to fix more than one strip.

Moss can grow quite quickly and it will grow in between roof tiles filling in the voids and lifting up roof tiles and slates. It won t stop it completely as moss will still form on the surface of the tile and also between the overlaps as you can see from the moss in this photo. Moss on roof tiles. Be aware that some of that moss will fall into your gutters which means you ll need to clean those out too.

Moss can be scraped off by hand but this must be performed with caution to avoid damaging roof tiles particularly in the case of timber or asphalt shingles. Because moss prefers to grow on rough porous surfaces like concrete clay or tarmac you may find that a waterproof sealer or coating will reduce the amount of moss growing. This will protect roof shingles and tiles from growing moss. Prevent future moss growth by installing zinc or copper on the roof.

In this case add a copper strip at the midway point down the roof too. Moss growing under roof slate and tiles can push the slate out of position allowing rainwater to seep into the roof structure. Is it a problem. Step 3 keeping the moss off.

Before proceeding with any remedial work to remove moss or lichen we would recommend speaking to a roofing maintenance professional.