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.

Figure 1 Tab lifted by a raised nail head.

Figure 1 Tab lifted by a raised nail head.

One of the nail had been installed at an angle and had backed out.  When I removed the nail, the shingle remained raised because it had deformed over the nail head.

The sealant was scraped off the underside of the tab, the old nails removed, new nails installed in the old holes and alongside each nail.  One of the new nails didn’t engage solid wood, so, we ended up with five nails at the joint.

Figure 2 Sealant scraped off, re-nailed and re-sealed.

Figure 2 Sealant scraped off, re-nailed and re-sealed.

The tab was then re-sealed with an asphalt sealant and held down with a brick to undo the deformation.

Figure 3 Brick applied to hold tab down.

Figure 3 Brick applied to hold tab down.

The final result is shown in Figure 4.

Figure 4 Finished!!!

Figure 4 Finished!!!

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