Lichen and green moss growth on a slate roof.
Cleaning moss from roof slates.
The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water.
Push the brush across the slate working downward.
Debris and moss buildup hold moisture in the slates that can split them during winter freezes.
Brush across the section of roof you rinsed to remove all moss algae or stains.
Small amounts of dirt are usually not a problem as opposed to when large parts of the roof are covered with moss.
Both artificial slates and natural slates have to deal with moss and pollution in the long run.
Apply w ith a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water.
This is a dangerous project that can damage your home so it s best to hire a pro.
After you have killed the moss on your roof you must remove the dead moss manually or it will act like a sponge and soak up water further promoting decay.
Don t brush against the direction of the slate since this can loosen or damage your slate tiles.
If possible a dirt blaster is used.
Brush until you ve cleaned half your roof.
Cleaning a roof costs 294 and 582 or 423 on average expect to pay between 0 20 and 0 60 per square foot regular roof cleaning makes it last longer and improves your curb appeal.
Lichen can be a tough growth to remove due to the symbiotic relationship between the fungus and algae.
Regular cleaning is an important part of keeping a slate roof in working order.
After the roof has been made free of moss the roof tiles or slates are treated with a moss and algae resistant product.
Both tasks work hand in hand to ensure the longest possible lifespan for your roof.
Moss can grow quite quickly and it will grow in between roof tiles filling in the voids and lifting up roof tiles and slates.
This gives your roof an ugly look and it is bad for the state of the roof as well.
This is a special rotary nozzle that makes it easier to remove filth.
Less easy but of far greater importance is the next step of removing the dead moss from the roof.
Roof moss removal mostly happens with the help of a high pressure cleaner.
1 remove moss without a cleaning agent.
Many people try to remove lichen by brushing and scraping it off with abrasive tools.
Step back several feet and repeat the wetting and cleaning process.
Their team of experts and professional cleaning tools will be able to get the grime dirt and trash that may be able to end up on a roof over time.
Moss growing under roof slate and tiles can push the slate out of position allowing rainwater to seep into the roof structure.
