Remember that before you fit the metal strips you should remove any existing moss or algae growth – you can do this with a stiff brush, or alternatively, purchase a moss-removing chemical, but if you aren’t confident in going up onto the roof, ask a professional. Zinc or copper strips should be fitted under the shingles that cap the roof ridge, with at least an inch or two exposed below. It will also mean that new moss and algae will not grow due to the poisonous particles that are deposited over your roof from the zinc strips. The metal particles poison the moss, algae and other plant life growing on your roof, and so the moss will wither and die over time, falling off your roof. They are fitted at the top of the roof, and when it rains, the rain absorbs metal particles from the metal strip and carries them down over the moss as the rain runs down the roof. These are long strips of metal that are installed below the ridges of roofs and are at their most effective when installed on a new roof before moss and algae have had the opportunity to grow because it makes the roof an inhabitable area, but they can also be retrofitted to remove moss and algae as well as preventing future growth. Take a look at our range of moss removal products.Īnother option for removing moss without damaging the roof shingles is to use zinc or copper strips. The benefit of using a chemical is that it will prevent moss from growing for longer than just removing it by hand. Some chemicals require you to wash off any excess after, but be aware of the potential risks involved when the water drains off. Apply as per the instructions on the package, and then leave to dry. The best way to apply the chemical is by using a sprayer, as long as you ensure it does not come into contact with other surfaces. Then place covers over any plants, patios or furniture – the chemicals used to treat moss and fungi are very strong and poisonous to plant life so it’s important to try to prevent it from spreading or coming into contact with other surfaces. How to use moss removal chemicalsīefore you apply the chemicals, you must remove most of the moss first using a brush or trowel as aforementioned. There is a range of chemicals to use on your roof to kill any moss, and the benefit of using a chemical is that it will remove all of the smaller moss spores that you can’t necessarily see, and any moss that is beneath the tiles. Best done on a dry day, it can be done by the homeowner if they are confident in accessing the roof, or alternatively get a professional in.Īn alternative to manually removing the moss with a brush and trowel is to use chemicals. Additionally, if there are any weaknesses or leaks the pressure washer can cause flooding to the loft space.Ī simple and cost-effective way of removing moss is to manually scrape the moss from your roof using a stiff long-handled brush, and a trowel. The worst way to remove moss is to use a pressure washer – this will remove moss from your roof without a doubt, but it is the fastest way to cause damage to your roof shingles as the force can break them, increase weaknesses and strip the surface granules from your tiles. The presence of moss on a roof can lead to long-term roofing problems, so it’s important to remove the moss as quickly as possible, to prevent the build-up of moisture which can lead to potential weaknesses within the roof structure, and to prevent any blockages to your drainage system. Cut-to-size Solid Polycarbonate & Acrylic Roof Sheets.VELUX Sloping & Vertical Combination Windows.
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