Posted by roofcoadmin June 28, 2017
Leaks on an asphalt shingle roofing system can result from several circumstances. There can be folded or lifted shingles, nail holes, or issues on the corners, vents, fascia and soffit panels.
In such situations, using a roof sealant can be a cost effective solution which can be performed rather quickly. Although the use of roof sealant on leaky asphalt shingles may not be the most permanent solution, it can still last for years, extending your roof’s use and effectiveness.
It is important to note using roof sealant will only be effective with small leaks caused by loose nail holes and flashing. A roof sealant cannot fix large leaks such as those caused by shingles which are pushed up by the winds. In this case, replacement of shingles is your best option.
Sealing a Leaky Asphalt Shingles Roofing System with an Acrylic Roof Sealant Formula
Sealing a leaky asphalt shingles roofing system with an acrylic roof sealant formula can be effective for slight folding or cracking of some shingles on the roof.
The acrylic roof sealant is sprayed over the whole roof and will seal minor buckling, chips and some gaps. This acrylic formula roof sealant will seal and adhere each of the asphalt shingles together to create a clear and UV radiation resistant coating.
The Sealant Spray
The sealant spray is used on areas where the asphalt shingles leak around the corners, vents, fascia and soffit boards. Basically, the sealant spray intends to function in the same manner as the acrylic sealant, only it comes in a spray bottle and can better target even much smaller leaky areas.
The sealant spray will fill to form a water-resistant seal in the torn or cracked shingles, or separations where the asphalt shingles meet the edges of the vents, skylights or chimney.
The sealant spray is rather easy and efficient to use.
Roofing tar works best with leaks around flashing and fills in gaps, crevices and fissures around it.
Roofing tar can be spread or brushed on the affected flashing manually and can also be used where the sealant spray is used.
Roofing tar, when being applied, is not as neat as the sealant spray. It can be messy, especially with your clothes and will not come off.
The Silicone Roof Sealant
A caulk gun will have to be used in order to apply silicone roof sealant.
Silicone roof sealant is also a great option to fill in shingle cracks and leaky nail holes and is also used to repair folded or slightly lifted shingles.
A small, droplet-like amount of silicone will have to be placed with a caulk gun under the bent part of the shingle. You will then have to bend back the affected shingle into its original, proper placement, put weight on it and let the silicone dry. A bent flashing may be repaired in this manner too.
When it comes to separations between the shingles and the flashings or vent or mortar, a small amount of silicon caulk will have to be pushed into it in order to cover the separation.