Tag: pa

  • Roofing 101: Black Roof Stains

    Courtesy of BobVIla.com

    Courtesy of BobVIla.com

    Have you noticed black marks on your roof?  Chances are it's black algae.

    According to BobVila.com, "The black spots discoloring your asphalt roof are more than likely the pervasive and prevalent algae known as Gloecapsa Magma."

    This algae likes to grow in a dark moist environment, usually from dew and shade. According to the site, this algae usually starts on the north-facing sides of a roof because those sides usually receive the lease amount of light.

    And, since it travels through the air, it could've come from a neighboring home, and unfortunately, black algae thrives on calcium carbonate, which is used in most asphalt shingles.

    While the algae is not necessarily harmful (it's primarily an aesthetic issue) it can prematurely age shingles.

    DON'T use a high pressure washer to remove algae as it can harm the shingles.  It's best to gently spray the shingles with a solution of, " one cup of trisodium phosphate (available at most hardware stores), one gallon of bleach, and five gallons of water" and let it sit for 20 minutes before rinsing it off.  Be sure to apply the treatment on a cloudy day so the solution doesn't evaporate.

    While this cleans the existing algae that's there, it doesn't prevent it from coming back...

    In order to prevent algae from forming, a solution "can be created by installing copper or zinc strips under the full course of shingles at the ridge of the roof.  As rainwater washes across the metal it will create an uninhabitable environment for future spores."

    Exterior Specialties of PA is here to help with all or your roof stains, roof repair and roof installation needs.  Call us today at 215-453-9180 for your FREE estimate!

     

     

     

  • How to Clean Vinyl Siding

    pressure_washing_vinyl-siding-enhancescape1

    Though vinyl siding can weather a lot, it is a good idea to routinely clean it to make sure it lasts.

    According to BobVila.com, "Because it is an exterior product, vinyl siding can accumulate a host of dirt, grime, and stains on account of things like pollen, bird and insect droppings, spider webs and rust."

    You're in luck because it is quite simple to clean vinyl siding.  According to the Vinyl Siding Institute via BobVila.com, "the best way is to use a soft cloth or an ordinary long-handled, soft-bristle brush."  To prevent streaks, wirk from the bottom to the top and thoroughly rinse any cleaning solution as you work.

    Here are some effective cleaning solution options you can use, courtesy of BobVila.com:

    • 70% water, 30% white vinegar makes a great all-purpose cleanser that removes light mold and mildew stains.
    • For a stronger solution, mix together one-third cup powdered laundry detergent, two-thirds cup powdered household cleaner, one quart liquid laundry bleach and one gallon of water.
    • If you are concerned about landscaping, use a solution comprised of one gallon of water mixed with one cup oxygen bleach in a bucket. The oxygen bleach will clean the vinyl without damaging your landscaping.
    • Simple Green offers an environmentally friendly cleaner that is specially formulated for use on vinyl and aluminum siding, stucco, terra cotta roof tiles and painted wood. The non-toxic biodegradable concentrate can be used manually or with pressure washers.
    • General household cleansers (e.g., Fantastik, Murphy’s Oil Soap, Windex and Lysol) can be used on tough dirt and stains, including those created by top soil, grass, grease, oil, rust, crayon, ink and bubble gum. Rust stains may be removed using products designed for this purpose (e.g., Super Iron Out and Instant Rust Out).
    • Another effective way to clean vinyl siding is by using a pressure washer, although some manufacturers advise against it, and other manufacturers recommend a limited amount of pressure. If using a pressure washer, be sure to keep the stream at eye level and pointed straight at the siding, not at an angle. That way, you won’t drive water in behind the siding. Use caution when using a pressure washer around openings like windows, doors, and plumbing connections.

    Don't use products that contain organic cleaning solvents, undiluted chlorine bleach, nail polish remover, liquid grease remover, or furniture polishes or cleaners, as they might damage the siding's surface.

    Exterior Specialties of PA is here to help with all of your vinyl siding, exterior siding, siding repair, and siding installation needs. Call us today at 215.453.9180 for your FREE estimate.