It takes a body of evidence to determine whether or not the shingles have been intentionally damaged to mimic wind damage. Following are many of the characteristics or features that alone might mean nothing, but many of them together are… Read More
Category Archives: Shingles
Compare: An Adhesive Failure Vs. a Cohesive Failure in an Asphalt Shingle
The wind resistance of asphalt shingles is strongly correlated to the sealing of the tabs. That is, if the tabs are well sealed, the shingle have excellent resistance to damage from exposure to high winds. An exception to this is… Read More
Tips for Identifying Intentional (Advertent) Damage to Asphalt Shingles – The Pattern of Compatibility – Part 5
We have been discussing three fundamental patterns that may be used to distinguish intentional manual damage from naturally occurring hail or wind damage. These fundamental patterns are: Natural Order vs. Unnatural (Artificial) Order Sufficiency vs. Insufficiency Compatibility vs. Incompatibility In… Read More
Tips for Identifying Intentional (Advertent) Damage to Asphalt Shingles – The Pattern of Sufficiency – Part 4
We have been discussing three fundamental patterns that may be used to distinguish intentional manual damage from naturally occurring hail or wind damage. These fundamental patterns are: Natural Order vs. Unnatural (Artificial) Order Sufficiency vs. Insufficiency Compatibility vs. Incompatibility In… Read More
Tips for Identifying Intentional (Advertent) Damage to Asphalt Shingles – The Pattern of Order – Part 3
In our last post we introduced three fundamental patterns that may be used to distinguish intentional (advertent) manual damage from naturally occurring hail or wind damage. These fundamental patterns are: Natural Order vs. Unnatural (Artificial) Order Sufficiency vs. Insufficiency Compatibility… Read More
Tips for Identifying Intentional (Advertent) Damage to Asphalt Shingles – General Principles – Part 2
In our last post we discussed the increased frequency in the number of intentionally (advertently) damaged shingle roofs that we have evaluated over the years. In this post we discuss the method of evaluating shingle roof damage with regard to… Read More
Tips for Identifying Intentional (Advertent) Damage to Asphalt Shingles – Introduction – Part 1
We have often been engaged to evaluate damage to asphalt shingle roofs. Some of our evaluations have concluded that the damage was intentionally applied in a fashion that appears to mimic hail or wind damage. By intentional we mean advertent,… Read More
Shingle Damage Evaluation – Intentional Damages to Mimic Hail Damage – Part 7
This post is Part 7 of Shingle Damage Evaluation and follows Other Damages That May Be Mistaken for Hail Damage – Part 6d. In this post we discuss mechanical damage marks on shingles that were applied with the intention to mimic hail damage,… Read More