Part three in a series

In the first two articles in this series we discussed wind damage to a residential asphalt shingle roof we inspected recently in Lincolnshire, IL. The second article showed pictures of various types of readily visible damage we found while on the roof. Such roof damage includes creasing, flipping as well as detaching (or dislodging).

The shingle damage probable starts with damage to the sealant which causes vulnerability for further damage from high winds. Here we will visually illustrate how extensive this damage can be via photos we took while on the roof of the house. These pictures show the broken seals on the asphalt shingles and how loose they are now.

This picture shows evidence of the broken asphalt shingle sealant.

Evidence of Broken Asphalt Roof Shingle Sealant

Pictures of extensive damage to sealant of asphalt roofing shingles.

Extensive Damage To Sealant Of Asphalt Roofing Shingles

Further Extensive Damage To Sealant Of Asphalt Roofing Shingles

These photos show the extensive damage along two sections of the roof with multiple broken seals along tabs. I used crayons to prop up the shingles.

Extent of Sealant Damage To Asphalt Roof Shingles

Wind can now further damage the roof shingles, easily lifting them, causing creasing, flipping and eventually break or dislodging them.

Extent of Sealant Damage To Another Part of Asphalt Shingle Roof

The failure of the sealant is not itself due to wind damage. Other things may contribute to the breaking of the seals on the asphalt roof shingles, causing them to loosen from the roof and then subjecting them to more extensive damage from high winds. Amongst the contributing factors may be poor initial installation, defects in materials (including the sealant itself) as well as the normal cycle of deterioration over time.

Especially in the Illinois and Wisconsin areas we serve where we have the changing seasons. Even day to day temperature fluctuations as we recently experienced (from the teens to the 50’s and back to near zero within a week) contribute. The expansion and contracting, shrinking and swelling, over time can cause the seals to break.

In the next article in this series we will show some further indicators of damage to the shingles. To read the first article, please see Wind Damage To Asphalt Shingles On The Roof Of Your House.

Call ZEO Roofing at 224-400-9500 to inspect your roof if you suspect wind damage to your asphalt shingles! Remember, when you need a professional roofing contractor to make necessary repairs or for a new re-roof come this spring, ZEO Roofing has you covered!