When should you replace your roof?
Nail pops, worn out shingles, lots of granular loss
Table of contents
- exposed fiberglass from granular loss
- Nail pops all over the roof
- Improper pipe boot installation
- Improper chimney flashing
- Sliding shingles
- Moss growing on shingles
- More nail pops
- Improper installation of shingles

- 1exposed fiberglass from granular lossGo To Pin
- 2Nail pops all over the roofGo To Pin
- 3Improper pipe boot installation
The top picture shows the pipe boot that was exposed for too long. Massive rain and storm can make it under the edges and on the roof.
In the two pictures in the center: the pipe boot should never be under all the shingles as this can allow rain to enter under the shingles. You can see the outlined bottom where the pipe boot should be coming out, and the center of the shingles should be cut out. See the bottom picture for a proper pipe boot installation.
Go To Pin - 4Improper chimney flashing
The step flashing is designed to go between each shingle. This way, the watersheds can go down to the roof to the shingles. The step flashing is sitting right on the wood decking. If they were between each shingle, I would be unable to pick up the edges of 3 or 4 shingles at a time. I’m doing that in the second picture.
The bottom picture shows the flashing at the top of the chimney; as you can see, all were smashed and bent up under the shingles. This will be the reason that the water can go directly inside.
Go To Pin - 5Sliding shingles
In the top picture, you can see that the shingles are starting to slide down on the roof. In the second one, you can see that the nails were put in with too much pressure causing the nails to shoot through the shingles. If nothing holds them down, then gravity will be going to pull the shingles down to the roof, which could be the cause of the collapse.
Go To Pin - 6Moss growing on shinglesGo To Pin
- 7More nail popsGo To Pin
- 8Improper installation of shingles
These shingles are overlapped, but they should probably be butted up together. This can cause premature wear due to overheating, and the shingles will not seal down as they should. The bottom picture is the same as the top one, but I outlined the sticking shingles. This will happen due to the worst overlapping of shingles.
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