Category Archives: Shingles

What Can We Tell from This Photo? (Case Study 16)

Posted by in Shingles | October 02, 2017

The feature photograph was taken of applique shingles.  Applique shingles provide a dimensional appearance by adding a second coating of asphalt and granules, called an applique, over some areas to give the shingle a thicker appearance.  This photograph provides helpful information… Read More

These Are DEFINITELY Intentional

Posted by in Shingles | August 14, 2017

Here are some photographs of intentional mimicking of hail damage. Note the curved impressions in the asphalt, the pulverizing of the granules, the pushing of the granules into the asphalt, the lip at the edge of the mark, and the matching… Read More

Is Hail Impact Damage to Shingles Immediately Noticeable? (Encore – Updated)

Posted by in Shingles | August 07, 2017

It is claimed by some that damage from hail impact may cause a gradual loss of granules that can result in premature aging of the shingles over time. They further say that without visible damage, there is no real way… Read More

What Happened Here?

Posted by in Roof, Shingles, Simple Forensic Methods, Winter Concerns | July 17, 2017

The shingles along the eave of roof exhibit broken and dislodged tabs and surface gouges (Figure 1). What could have caused this?  Vigorous ice removal. The damage is along an area that was reportedly covered with ice (see featured photograph).… Read More

What Causes That Fish Mouth Appearance in a Shingle Roof?

Posted by in Buying/Maintaining a Home, Construction & Shortcuts, Roof, Shingles | July 10, 2017

Sometimes a shingle roof will exhibit a pattern of shingle tabs raised at their center, such as seen in the featured photograph.  That is, the shingle tab is partially sealed at each end, but raised in the middle (Figure 1).… Read More

Quickly Identifying Unsealed Shingle Tabs

Posted by in Roof, Shingles, Simple Forensic Methods | June 19, 2017

Here is a quick and easy method to identify unsealed, partially unsealed, or poorly bonded shingle tabs or shingle strips.  But I must warn you, “DO NOT TRY THIS AT HOME UNLESS YOU ARE WILLING TO ACCEPT THE RISK OF… Read More

Intentional Damage? Or Something Else?

Posted by in Shingles | April 17, 2017

Not all shingle tabs that are creased or unsealed by hand lifting are done so with intention to damage.    During the replacement or repair of shingles, flashings, or other roof component, shingle tabs are often lifted and bent back to… Read More

The Work of Hansel & Gretel?

Posted by in Buying/Maintaining a Home, Shingles | February 06, 2017

Remember the story of Hansel and Gretel?  For those who aren’t, they are a brother and a sister who run away from home, get lost, and come upon a gingerbread house.  Having become famished in their travels they start eating… Read More