Wash. A thorough scrubbing is a must before painting any exterior surface. It removes the dirt and broken-down paint residues that keep fresh coats from adhering and gets rid of mildew that grows on paint in all but the most arid climates.
So, if you haven’t painted exterior within last six months, it is recommended you need to wash exterior walls, soffits, fascia, porch ceilings, removing dust and debris, before painting again. Cleaning, washing off cracks, crevices, where siding overlaps each other tends to collect a considerable amount of dust, debris.
MY DIRTIEST DRIVEWAY CLEAN EVER! (No drainage at all)
PRESSURE WASHING STUCCO with CHEAPEST PRESSURE WASHER from LOWE’S / HOW TO PAINT A HOUSE PART 1
Mopping Walls Before Priming. Painting New Wallboard or Drywall. New construction painting.
Frequently Asked Questions
Do you wash your walls with soap and water before painting?
When to Wash With Soap and Water As noted above, most paint manufacturers recommend that you clean walls with at least mild detergent and water before painting. Although modern paints are so good that they bond well to almost any surface, it will adhere best to surfaces that are perfectly clean and smooth.