This is the 499th anniversary of Martin Luther, a Catholic monk, nailing 95 Thesis to the main north door of Castle Church at Wittenberg. All he wanted to do was have a scholarly discussion about these 95 issues, but others made copies… Read More
News & Resources
Hail Impact Doesn’t Always Damage Shingles
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
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
“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”
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
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
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