How To Clean A Metal Roof Before Painting

Use a rag to apply to affected spots and use circular wiping motions.

How to clean a metal roof before painting.

Repeat this process until the area is free of mold and mildew. For every part water combine 0 05 part mild dish or laundry detergent. Remove the particles or pieces that are causing the rust stains. Opt for something soft to protect your roof s paint and parts.

Use a cloth or sponge to clean. Tsp is available in most paint or home improvement stores. Mix water and mild detergent for stubborn areas. For any areas that don t wash away with pressurized water fill a bucket or other container with water.

Now take a soft brush dip it into the solution and start scrubbing the areas affected by mold and mildew. 5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar. Then rinse the area with water thoroughly.