How to Remove Exterior Mildew Stains
Make sure to remove any mildew stains before you paint your home's exterior.
For best results:
Make sure to dampen the areas to be cleaned prior to applying the cleaning solution
Allow sufficient time for the cleaning solution to work (10 - 15 minutes).
Tools & supplies
- Bucket
- Hose
- Ladder
- Pressure Washer
- Protective Apparel
- Pump Sprayer
- Rags
- Scrub Brush
Step-by-step process
Step 1
Using a garden hose or a pressure washer, wet the mildewed area with water.
Step 2
Using a pump sprayer, apply BEHR PREMIUM® All-In-One Wood Cleaner to the mildewed area.
TIP: Prior to applying the cleaning product, dampen the surrounding grass, plants, and other vegetation with water.
Step 3
Reapply the cleaner as needed to keep the surface wet. Allow the solution to remain on the surface for 10-15 minutes. Scrubbing may be required on severely stained surfaces.
Step 4
Thoroughly rinse the surface with water. Allow it to dry.
TIP: For non-painted wood or new wood, apply BEHR PREMIUM All-in-One Wood Cleaner to the wet, rinsed, treated surface. Do not allow the surface to dry prior to applying the product.
