In Tampa Bay, our spring rains are coming, and consistent moisture often creates a moldy, stained look on roofs. But, is it smart to have your roof cleaned if you have stains or algae on your roof cement tile or shingles? The pros and cons of cleaning your roof depends on the age and condition of the roof as well as the qualification of the roof cleaner.
It is smart to keep a roof free of debris and mold. However, on a shingle roof already more than 10 years old, a high pressure cleaning can loosen granules, lift shingles and possibly damage the underlayment which provides water protection. Damage to the waterproof barrier is also a risk when cleaning tile roofs, too.
Mildew and fungus can increase shingle deterioration and wood rot, but cleaning a roof yourself could possibly void your warranty. Check with a professional roof cleaner for the best method of cleaning while maintaining the integrity of the roof.
If you are not sure of the age of your roof, and it has algae staining and losing granules, it could also be a sign that you need roof repair or replacement. Warm, humid weather makes algae staining more likely, especially on the north side of a house, but it could also be a sign of old shingles which do not include a stain-resistant additive.
Clean or Replace?
It is always better to replace an aging roof before it actually begins to leak. It is less expensive because there will be less damaged wood to replace. Plus, there will have been no damage to your attic or interior which must be disclosed when you sell your home.
Call us at 813.884.1815 to determine the age and condition of your house and whether or not it’s time for you to consider a roof replacement.