Roof Shingles Not Sealing

The shingles on your roof serve a dual purpose.

Roof shingles not sealing.

They give the roof a finished look while forming a protective seal. This keeps a uniform seal on the roof and keeps the shingles from getting blown off. A well bonded sealant strip prevents the shingles from being lifted by wind pressure. The sealant strip is an adhesive applied to the underside of each shingle during the manufacturing process.

Once the shingles are installed radiant heat from the sun warms the shingles and bonds or seals the shingles together. If the shingle is not sealed or breaks loose very easily follow the handsealing instructions on the next page to re seal the shingles. Typically shingles will lay back down and reseal unless there is debris stuck in the seal. In this way the shingles all stick to each other.

Many people assume it s an adhesive strip. 15 years on a 30 year shingle is not too bad. Originally asphalt shingles did not have a sealant strip and they were manually sealed with adhesives after installation. Handsealing is manually checking and lightly lifting each shingle to check to see if the factory applied sealant has bonded and is adhering securely.

Shingle magic sealer is a patented clear acrylic sealer that helps restore original color waterproofing and extends roof shingle life for up to 30 years. When the shingles are laid down they are not intended to work separately anymore. But that shiny asphalt is merely the shingle s coating asphalt. Self sealing shingles were introduced in the late 1950s.

Sincerely technical service department roofing products group. Lumpy bumpy or curling shingles that do not. Shingles not sealing most asphalt shingles have an adhesive strip. Under driven nails in the sealant strip debris in the sealant strip and release tape that was inadvertently stuck to the shingle s sealant strip due to packaging errors further their experiment found that a distinct pattern of partial unsealing was observed on 70 19 out of 27 of the roofs surveyed including both laminate and three tab systems.

When heated by the sun the strip will cause the shingles to lay down and bond together. It is not uncommon for a new roof to look a bit wavy until this permanent seal is created. Or unless the shingles are brittle. Roof shingles are not lying flat.

Shingles come with adhesive strips on them one on the bottom underside and one on the top part of the shingle. See this link to learn about wind and shingles on a more broad spectrum.