How To Kill Metal Roof Mildew

Start from the top shingle and rinse downward to prevent water seepage.

How to kill metal roof mildew.

Mix up your cleaning solution. Using a plastic pump type garden sprayer thoroughly soak the affected area with your choice of chemical. Remove the particles or pieces that are causing the rust stains. Bleach mixtures can injure sensitive plants.

Wipe down the metal with the bleach solution. How to use bleach mixtures on your roof. The premade ones are much quicker and probably neater looking. 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.

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. Let the solution remain on the metal for 15 minutes. If they are severely molded you may want to give it a little longer. Spray the entire roof thoroughly.

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. Copper sulfate solution alternative. Spray all the plants growing near your house with water as this will help. Spray all the plants growing near your house with water and this will help protect them from.

Use a rag to apply to affected spots and use circular wiping motions. Pine sap decaying leaves and even road dirt that s drifted into the air can settle on your metal roof and stain it. Next rinse the shingles thoroughly with a garden hose at low pressure. Allow the solution to soak into the shingles for at least 15 minutes.

To get rid of mold and other types of growth for good it s best to use a powerful. Lightly scrub with a soft bristle brush. 5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar. Most of these substances can be removed by a mixture of cup tri sodium phosphate and 1 gallon of water.

To remove severe rust stains. Preventing mildew from forming. Because it is difficult to totally protect them from the mix spray them down with clean water before. Use a long handled brush to scour the surface of the shingles and loosen stuck on.

Scrub away the thickest buildup. This will kill remaining mold spores on the metal. Spray this mixture onto the roof and agitate it with a soft bristled brush to get it clean. 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.