When was the last time you had your roof re-shingled? If it’s been a while, then chances are, there are potential problems brewing with it. If you notice certain areas of your roof where shingles have detached from the rest of the roof, then you could be facing a sign of buckling shingles.

Buckled shingles can look like something is growing from beneath the shingles in your home. That’s because more often than not, buckling shingles are caused by something that’s pushing them from underneath. That said, there are occasions when shingles buckle without anything pushing them up. Your trusty Sunnyvale and Palo Alto roofer shares with you four of the common causes of a buckled shingles:

Wrinkled underlayment

An underlayment is placed under asphalt shingles for different reasons—it can act as protective layer for moisture, a barrier against the elements, a component to hide roof imperfections, and a way to enhance a roof assembly’s fire rating. Most underlayments have an adhesive side. If the adhesive is not applied straight and flat, the creases can start pushing on shingles over time.

buckling shingles

Improperly applied felt

Similar to underlayment, buckled shingles can occur if the felt material underneath the shingles is installed wrong. Felt can rise and buckle if not applied flatly to the roof. Naturally, the shingles over them will buckle as well.

Poor attic ventilation

If an attic is not well-ventilated, moisture can start to build up, and with no place to go, moisture can become condensation and begin to damage the roof structure. When it penetrates the underlayment and roof shingles, over time, the shingles will begin to warp and buckle.

Roof deck movement

Under your shingles is a layer of plywood sheets that cover your home. When these sheets are not properly secured to the roof framing, they can begin moving every which way, and move your shingles along with them. Likewise, deck movement can also occur when the plywood has become saturated with moisture. This can cause the deck to rot and warp, which can lead to serious structural problems to your home.

In need of roofing services?

Buckling shingles can be a symptom of a larger roofing problem. If you observe this on your roof, it’s time to call capable roofers in Sunnyvale and Palo Alto such as Shelton Roofing.


(Reasons Why Your Shingles Are Buckling, AquaBarriers.net)

(Plain Facts About Buckled Shingles, AsphaltRoofing.org)