Category Archives: Shingles

Update: Low-flying Planes (Still) Damaging Roofs in Poland

Posted by in Roof, Shingles, Unusual | December 05, 2016

In July 25, 2016 we reported a story in the Dziennik Polski that low flying airplanes were damaging clay roofs tile on homes nearby the airport in Morawica. This is an ongoing story in Poland as the authorities have been flummoxed… Read More

Here’s a Layout You Don’t See Often (or Ever Before, for Me)

Posted by in Roof, Shingles, Unusual | November 14, 2016

Things that came to mind at first glance: How does a roofer handle this? Did the architect see this coming? How can this not leak? Now what can be done? Answers (Guesses): He routed one valley into another. Probably not.… Read More

Hail Impact Doesn’t Always Damage Shingles

Posted by in Shingles | October 24, 2016

Just because shingles were impacted by hail doesn’t mean that they were damaged by hail. Hail damage to asphalt shingle roofs is characterized by localized loss of granules, usually somewhat circular in shape, and accompanied by a fracture or a… Read More

Blistering in Shingles

Posted by in Shingles | October 10, 2016

If you have ever had a blister from doing yard work or from too many swings on a golf course you probably have a pretty good idea about what blistering looks like on shingles. Blistering appears as bubbles raised on… Read More

Mmmmm, Maple Seeds

Posted by in Shingles | October 03, 2016

“Mmmmm, Maple Seeds,” must be what the squirrel or another rodent was thinking when one of them scratched away at the shingles leaving a broken edge (see the featured photo and Figure 1). We see this sometimes on roofs with… Read More

Unnatural Pattern of “Alleged Wind Damage”

Posted by in Shingles | September 26, 2016

The relatively uniform spacing of the missing tabs within the fields of the roof slopes, the almost identical pattern of the fractures and cracking of the tabs, and the presence of this pattern on multiple slopes facing multiple cardinal directions… Read More

Buckling, Sliding, and Thermal Tearing of Shingle Strips

Posted by in Shingles | September 19, 2016

In the featured photo the shingles exhibit buckling at the ends of the shingle strips.  This buckling is similar to the buckling of a concrete roadway in the summer. The shingles have expanded from excessive heat or swelled from excessive… Read More

Case Study: Hand Torn Shingles

Posted by in Case Studies, Shingles | September 12, 2016

The dimensional shingles on the roof exhibited many torn and dislodged shingle strips (see featured photo).  The shingle strips were well sealed and when they were lifted, the underside of the mat adhered to the underlying shingle (Figure 1).  In… Read More