What are the dark stains on my roof?


What are the dark stains on my roof?
By Scott Rogers • September 30, 2010
It's natural to be worried about the condition of a roof if it looks like the photo above. You might reasonably think that the shingles are damaged or defective in some way. But there's good news -- it's likely just algae! This roof algae, which appears relatively frequently in/around Harrisonburg and Rockingham County grows and thrives by consuming the materials that roof shingles are made of --- for example, calcium carbonate. The algae does not seem to cause the shingles any harm, but it makes for an unattractive roof --- that makes home buyers wonder whether something is wrong with the roof. How can you get rid of these stains, you might ask? Per eHow, some simple cleaning with bleach will do the trick. Or you could install zinc strips at the top of the roof to stop new growth. Or you could (at some point) replace your shingles with algae block shingles that include copper granules. The copper prevents the algae from growing. Receive Updates by Email Recent Articles: Will Your Offer Terms Cause The Seller To Say YES Or To Seek Other Offers? The Comfortable Feel Of An Established Neighborhood Might Come With, Surprise, An Older Home That Needs Some Updates Home Sellers And Buyers Will Often Disagree About Needed Updates You Cannot Hear Traffic On A Nearby Road By Looking At Photos Last Call (Just About) For Selling Your Home In 2024! Sometimes An Offer Is So Strong A Seller Will Not Wait For Other Imminent Offers If You Will Be Moving To Sunnyside, VMRC Or Bridgewater Retirement Community, We Should Talk Sooner Than Later Sometimes It Makes Sense To Just Adopt The Timetable The Seller Prefers Fewer And Fewer Resale, Detached, Homes Selling In City Of Harrisonburg The Next Owner Of Your Home Might Love Different Parts Of It For Different Reasons, And That Is OK!
Have any questions? Contact Scott Rogers at 540-578-0102 or scott@funkhousergroup.com
Based on information from the Harrisonburg-Rockingham Association of REALTORS® or its MLS, for the period Jan 1, 2000 through Nov 01, 2024 (unless otherwise noted).
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