It is made from coal tar and petroleum byproducts.
Black tar on roof.
Read on to find out how to remove them.
Removing this tar is the only way you re going to be able to make a long lasting repair that doesn t let the rain back in within a few months or years.
Roofing tar is often used for tar and gravel roofs or to fix leaks on a roof.
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Excessive and improper use of the sticky stuff however can leave behind unsightly stains on.
The most common type is known as gloeocapsa magma also known as blue green algae.
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.
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Typically this material is a dark and oily mixture made from coal tar and petroleum byproducts.
Coal tar must be refined and processed to meet standards for roofing use.
This algae growth usually begins as small spots and then eventually becomes visible streaks.
Roofing tar also called mastic or cement plays an important role in roofing repair and installation.
Pros and cons of roofing tar.
Coal tar is a deep brown or black residue which is made during coal production process.
Roofing tar is a dark oily mixture used on flat roofs to fix leaks.
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.
While you may have been able to replace a missing or broken shingle or piece of chimney lead easily before now you have a mess of dried cracking tar on your roof.
Both durable and waterproof roofing tar is a versatile material.