How To Kill Metal Roof Mildew

Next rinse the shingles thoroughly with a garden hose at low pressure.

How to kill metal roof mildew.

To remove severe rust stains. 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. Most of these substances can be removed by a mixture of cup tri sodium phosphate and 1 gallon of water. Remove the particles or pieces that are causing the rust stains.

Preventing mildew from forming. Rinse it off with clean water and then dry the item with a towel. This will kill remaining mold spores on the metal. Wipe down the metal with the bleach solution.

Allow the solution to soak into the shingles for at least 15 minutes. Pine sap decaying leaves and even road dirt that s drifted into the air can settle on your metal roof and stain it. Let the solution remain on the metal for 15 minutes. You can cut strips of zinc flashing copper and lead work too and slide them under a course of roof shingles to kill lichen and moss growing there or you could just buy these premade strips from shingle shield.

To get rid of mold and other types of growth for good it s best to use a powerful. Spray the entire roof thoroughly. Lightly scrub with a soft bristle brush. Spraying the roof 1.

Spray all the plants growing near your house with water and this will help protect them from. The premade ones are much quicker and probably neater looking. Spray this mixture onto the roof and agitate it with a soft bristled brush to get it clean. Use a long handled brush to scour the surface of the shingles and loosen stuck on.

5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar. Use a rag to apply to affected spots and use circular wiping motions. For any of these homemade options you ll want to wet down the roof with plain water first then apply the cleanser and let it sit for 20 to 45 minutes. How to use bleach mixtures on your roof.

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. Bleach mixtures can injure sensitive plants. Mix up your cleaning solution. Spray all the plants growing near your house with water as this will help.

Scrub away the thickest buildup. If they are severely molded you may want to give it a little longer. Copper sulfate solution alternative. Using a plastic pump type garden sprayer thoroughly soak the affected area with your choice of chemical.