Asphalt Shingles
While asphalt shingles are low maintenance, there are a few methods to stay away from when cleaning them. Pressure washing is best left in the hands of professionals, as the strong force of the water can knock the shingles loose. Harsh products like bleach must also be avoided as it can cause deterioration and discoloration. Instead, use gentle cleaning products along with a garden hose fitted with a sprayer.
Clay and Concrete Tile
Like asphalt, clay and concrete tiles can suffer damages when harsh cleaning products are used. This type of material is also delicate and can fracture easily when pressure is applied.
To clean clay and concrete tile roofs, use gentle cleaning products and low-pressure water. Soft washing is recommended. You may also spot efflorescence (chalk-like substances) forming. To get rid of this, use a clean dry cloth to wipe them away.
Wood or Cedar Shake
Pressure washing is a method best avoided when it comes to wood shakes. If it’s necessary, leave it in the hands of experienced professionals. Washh uses a soft washing approach for gentle yet effective cleaning.
Refrain from using harsh chemicals like ammonia and bleach as these can cause discoloration. A vinegar and water solution can get rid of moss and lichen, while regular tree trimming can prevent debris accumulation. Proper ventilation is equally essential, so gutters and downspouts should also remain clean and unclogged.