How To Clean Mold Off Your Roof

Mix 1 part bleach to 3 parts water and apply to the mildew covered area with a hand pump sprayer.

How to clean mold off your roof.

To clean mold off a roof start by putting on rubber gloves a breathing mask and goggles to protect yourself from the harsh cleaning chemicals. Adding some tri sodium phosphate tsp will help clean the roof at the same time. Then use a long handled brush to scour the surface of the shingles and loosen stuck on mold while it s dry and brittle. To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.

That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles. Before applying the cleaner spray the roof with water to cool it down. Hose off the area with plain water spraying at a downward angle. Then spray the cleaner onto the shingles photo 1.

The day you perform deep cleaning on the shingles should be cool and overcast. For more porous surfaces like drywall just use a rag so you don t damage the surface with more abrasive cleaners. Then use a long handled soft bristle scrub brush to remove the moss from the roof scrubbing from the top down to avoid lifting. That ll prevent the cleaner from drying out too quickly.

In addition choose a day with little wind so that when you spray the solution it stays on your roof 1 x research sourcestep 2 perform maintenance on your roof. Sunlight and warm weather will ensure the cleaning solution dries too fast to be of any use. The concentrated jet will scrape off the small pebbles on top of the shingles and reduce their water repellency which will only make your mold situation worse. Step 1 protect your plants and lawn.

If the surface is too porous to remove mold completely such as in ceiling tiles you may have to replace it. Before you begin it s important to repair loose shingles and flashings to minimize roof damage. Never use a pressure washer to wash or rinse shingles. Step 3 let the solution sit for 15 minutes then rinse it off with a hose.

If you have a consistent problem with mold growth on your roof consult a roofing professional. Step 1 choose a cool and overcast day.