Roof Shingle Delamination

Another possibility is delamination which can happen if the shingles aren t properly fused.

Roof shingle delamination.

When the layers of dimensional shingles aren t properly fused they can begin to come apart in just a few months after installation. 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. Flaking is commonly due to the drying and degrading of the asphalt over the years and the differential movement between the bond coating and the saturated coating caused by the repeated shrinkage and swelling from moisture variations and or expansion and contraction from thermal variations. Also known as dimensional or laminated shingles architectural roof shingles are made in a wide variety of colors.

One of the biggest benefits of this shingle option is that they come with sure nail technology. Architectural roofing shingles were developed in the 1970 s and are commonly used in new construction and on roof replacement projects. A tear is commonly observed in the shin gle immediately above the fastener revealing how much the shingle has been displaced see image 4. If the environment is humid moisture can get trapped between the membrane and insulation.

Like blisters delamination can come from improper installation in inclement weather. Owens corning is another well known brand with a lot of options. Delaminations commonly affect single ply and fully adhered roofs. Delamination can occur over time due to your roof s exposure to uv rays or from improper installation of the original roof.

This delamination can cause both water and wind damage to the existing roof. 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. Owens corning shingles reviews. If moisture gets between the membrane of the roof and the shingles this can also cause delamination.

Architectural roof shingles are a premium type of asphalt shingle. When the membrane and insulation separate.