Roof Stains On Northside Of House

Like many aspects of a home a roof is fairly complex.

Roof stains on northside of house.

These black streaks are unsightly and can diminish the appearance of the entire exterior of the home. When that happens it is generally caused by mildew algae mold or dirt stains. There are quite a few parts of a roof on a home including different layers and. The roof streaks look like mold but they re actually algae colonies that form in your shingles and feed on moisture and the limestone filler agents in the shingles.

The house had been re wired new sheetrock throughout kitchen etc. It s said that prevention is better than cure and that s especially true in this case. White stains on slate roofs may indicate roof age. While doing little harm to your shingles the black streaks caused by the algae are unsightly.

White stains formed on roofing slates such as in the roof pictured here are almost always a white mineral salt deposit or effloresence left by the evaporation of water that was absorbed into and that dissolved salts within the roofing slage. First let me apologize for the longwinded question. Your stains are probably caused by the airborne spores of a blue green algae known as gloeocapsa magma which is often mistaken for mold or mildew. It is not uncommon for roof shingles to turn black over time.

Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. Detached house with excellent access to roof and parking. I would like a quotation to clean and remove bird stains lichen etc from my roof and then subsequently seal to actively prevent future growth soiling. Algae is one of the most common stains found on a roof and if left untreated this can eat through the wooden beams that keep your roof up leading to leaks and large repair bills.

These substances can infiltrate the limestone mixture that attaches the shingle to the roof and end up harming its ability to repel water. When we purchased the house the return air duct work in crawl space was not hooked up and this was one of the. These red brown or even black roof stains are often caused by corrosion of on rooof or above roof metal components but may also be the result of improper combustion of wood coal or oil fired possibly also gas fired heating appliances vented above the roof. I live in a small semi detatched bungalow that has moss mainly on 1 side of the roof.

We knew a fire had occurred several years back and seen what was presumed to be smoke damage in the attic. Custom cross section diagram of a house roof showing the many different parts of a residential roof including structural parts the various layers exterior and various roof features such as skylight and chimney. Roof stains are a common roof problem. Algae can be killed and the stains removed using chemical cleaners though they usually return over time.

Remove black stains from roof shingles to preserve the appearance of your home s roof.