March 2, 2014

A dirty roof can reduce the value of your homeA dirty roof is unsightly and can make your home seem older than it is, reducing its resale value and curb appeal. Moss, algae and mold are regular culprits that grow on roof tiles and discolor them, whether they are ceramic, clay, asphalt or concrete tiles. If a roof is very dirty, with years’ worth of accumulated mud and dust, bird droppings and fungus, a low-pressure wash-down using suitable products is necessary. Some professional roof cleaners advocate a non-bleach cleaning method for lower environmental impact, while others prefer to use bleach-based chemical products.

Read the full article here – http://homeguides.sfgate.com/tile-roof-cleaning-products-20567.html