Category Archives: Shingles

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

Hail Damage Revisited

Posted by in Hail Damage, Shingles, Weather Events | August 01, 2016

It is that time of year again when we have thunderstorms with hail.  And, we are sometimes called in to evaluate damage to roof to determine whether or not it is hail damage.  There are times when these evaluations are… Read More

Shingle Tab Lifted by a Raised Nail (Case Study)

Posted by in Buying/Maintaining a Home, Case Studies, Roof, Shingles | July 11, 2016

From the ground, I saw that the shingle looked slightly lifted.  See the featured photograph.  Further examination disclosed that the shingle was lifted by a raised nail. One of the nail had been installed at an angle and had backed out. … Read More

Hail Damaged Shingles

Posted by in Hail Damage, Roof, Shingles, Weather Events | May 09, 2016

Last week we took a quick look at hand torn shingles. This week it is hail damaged shingles. Yes, Virginia, there have been hail damaged shingles. Hail damage to a composite asphalt shingle is commonly characterized by a small area… Read More