Roof Shingle Delamination

Architectural roof shingles are a premium type of asphalt shingle.

Roof shingle delamination.

One of the biggest benefits of this shingle option is that they come with sure nail technology. When the layers of dimensional shingles aren t properly fused they can begin to come apart in just a few months after installation. Delamination can occur over time due to your roof s exposure to uv rays or from improper installation of the original roof. Another possibility is delamination which can happen if the shingles aren t properly fused.

Also known as dimensional or laminated shingles architectural roof shingles are made in a wide variety of colors. Architectural roofing shingles were developed in the 1970 s and are commonly used in new construction and on roof replacement projects. Like blisters delamination can come from improper installation in inclement weather. Worn or weathered asphalt roof shingles which are losing their mineral granules in the course of normal aging if inspected early in the wear cycle already show small areas of granule loss beginning with bald areas on the shingles which may be just the diameter of a few mineral granules.

This delamination can cause both water and wind damage to the existing roof. If the environment is humid moisture can get trapped between the membrane and insulation. If moisture gets between the membrane of the roof and the shingles this can also cause delamination. When the membrane and insulation separate.

Delaminations commonly affect single ply and fully adhered roofs. Their shingles have many architectural styles and colors. Flaking organic shingles flaking is the delamination of the upper layer of the asphalt which bonds the granules to the lower layer of asphalt that saturated the organic shingle mat. Common asphalt shingle failure factors include improper storage and handling of the asphalt shingles before installation improper nailing improper flashing which pertains to any roofing material and defective asphalt shingle product material leading to thermal splitting cracking blistering staining and in some cases curling or cupping shingles.

A tear is commonly observed in the shin gle immediately above the fastener revealing how much the shingle has been displaced see image 4. The displacement could be fractions of an inch several inches or the shingles could have slid into the gutter or fallen completely off the roof.