Black Tar On Roof Shingles

This article describes black rivulets of tar like material observed on just a portion of the field of an asphalt shingle roof in the u s.

Black tar on roof shingles.

Roofing tar is a sticky black substance used to waterproof roofs before shingles are applied or used on flat roofs to improve their ability to resist water damage. Roofing tar is a good choice for a flat roof as this kind of material is highly resistant to the ultraviolet rays from the sun. Tarry black stains on asphalt shingle roofs. Black jack all weather roof cement is a pliable asphalt roof cement that can be used on damp as well as dry surfaces.

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. Excessive and improper use of the sticky stuff however can leave. Removing tar from a roof. Gaf shingles tar paper roofing shingles class a roof shingles roofing material rolls gaf sample.

While doing little harm to your shingles the black streaks caused by the algae are unsightly. Plastic roof cement is ideal for many roof repairs and for stopping roof leaks around vent pipes spouts valleys skylights gutters and chimneys. The most common type is known as gloeocapsa magma also known as blue green algae. Roofing tar is often used for tar and gravel roofs or to fix leaks on a roof.

Pros and cons of roofing tar. This algae growth usually begins as small spots and then eventually becomes visible streaks. Refresh your home s curb appeal by replacing your roof shingles. Sometimes the tar accidentally gets on objects or fabrics and the longer it sits there the harder it dries often making it difficult or challenging to remove it.

Simply slapping some tar on there instead of having a professional come out to assess could mean that you re leaving other damaged areas open to the elements as well. But was it factory material or something added by the roofer. While you may have an isolated incident that lead to a broken or missing shingle sometimes this can be a sign that you have other damaged or weakened areas elsewhere on your roof. Roofing tar will also protect your roof from wind and from snow and water which can collect on a flat roof.

Tim asks how can i clean the black stains off my roof and keep them from coming back your stains are probably caused by the airborne spores of a blue green algae. Read on to find out how to remove them.