Tips for Identifying Intentional (Advertent) Damage to Asphalt Shingles – The Pattern of Order – Part 3

Posted by in Roof, Shingles | April 29, 2013

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:

  1. Natural Order vs. Unnatural (Artificial) Order
  2. Sufficiency vs. Insufficiency
  3. Compatibility vs. Incompatibility

In this post we describe the fundamental pattern of Order.  Order describes the arrangement or the position of objects relative to each other.  In the subject case, the objects are the damages or marks on the shingle roof and other nearby components of the building.

Objects fashioned, created, or applied according to a man-made strategy (a purposeful design) commonly exhibit an artificial order that is distinguishable from the natural order produced by natural events. The dispersed and relatively random order of indentations or surface marks produced in asphalt shingles by natural causes are time consuming and difficult to imitate. It is rare that the “designer” of intentionally mimicked damage is able to apply indentations and/or surface marks in the natural “random order” of hail or wind damage. Rather, hand produced damage commonly exhibits an artificial order that evidences common human movements or activities or a symmetry or balance not produced by nature. So, the first distinction of intentionally mimicked damage is an unnatural or artificial order.  There is  usually an artificial order to the damage that is not consistent with the more random or complex order produced by a natural weather event.

We would provide examples here, but we would rather not assist in the education of those who may be reading this information for nefarious purposes.  If you are a client of ours and are interested in examples, please email us at engineering@prugarinc.com and request the remainder of the blog article for Order.

In the our next blog we plan to describe Sufficiency vs. Insufficiency.

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