However, if you don’t know how to clean roof shingles properly, you could end up doing more harm than good. While asphalt shingles are common and can be tackled with the DIY cleaning approach ...
‘Sodium percarbonate is a safer and more eco-friendly option for cleaning roof shingles, ideal for DIY enthusiasts,’ he says. ‘Mix four to six ounces of oxygen bleach per gallon of wate ...