Is See Streaks Where The Roof Is Drying Unevenly

If you look even closer you re bound to notice that the black streaks are everywhere but one place in particular.

Is see streaks where the roof is drying unevenly. You ll typically see gloeocapsa magma forming on areas of your roof that don t receive direct sunlight. Although these dark spots and ugly black streaks on your roof may look like dirt mildew soot or mold what they really are is algae. This blackish algae creeps it way across neighborhood roofs gradually turning your home s asphalt shingles an ugly dark brown or black. The most common type is known as gloeocapsa magma also known as blue green algae.

The stain did not take well on wood milled with the grain and on cross cuts the stain soaked into the wood giving. Thankfully the fix to this doesn t involve sanding. All you need to do is wait for it to completely dry and then apply another coat of paint. You ve never really taken a good look before but yes it s there.

For soot dirt or tree droppings which typically produce only localized discoloration. Near the metal flashing that s around chimneys and roof vents. When staining soft maple kitchen doors and drawers from a millworks shop the painter applied a special walnut stain directly to the raw wood. This week s question comes from robert.

You re outside taking care of some yard work and you suddenly notice streaking on your roof and siding. If it isn t all the way dry it can still look uneven after another coat of paint. Once the algae have infested your roof you ll see black spots begin to form. Why you re seeing black spots or streaks.

This algae growth usually begins as small spots and then eventually becomes visible streaks. It can be mistaken. Although it may look like mold or fungi these unsightly black streaks or smear like stains may indicate a type of roof algae known in technical terms as gloeocaspa magma. Less paint means a lighter coat resulting in uneven paint streaks on your walls.

The algae are usually brown to. The algae have a weakness and it s the copper and zinc coating used on the sheet of metal flashing which is toxic and kills the growth. Stains and streaks can show up easily on roofing and siding over time thanks to a whole host of nuisances including mold mildew and plain ol dirt. This is the first sign that you need to schedule a treatment for your roof.

Algae growth causes a dark discoloration. So unfortunately you re going to have more work ahead of you to get rid of them. Black in color which results in a streaked dirty looking rooftop.