Why Do Metal Roofs Leak in Sevierville TN? Metal roofs are notorious for randomly springing leaks. This is mainly due to the screws used to hold the top down. After the roofs become 4, 5, or 6 years old (which isn’t old by any means), the screws will start to unscrew themselves. This is caused by the mid-day heat expanding the wood and the cold evenings contracting on the wood. This constant expansion and contraction squeeze the screws, causing them to slowly back out of the wood.
Repairing a metal roof
Table of contents
- Holes in the metal on transition strip
- Lots of loose screws
- This is going to be a serious issue!
- Bottom corners of gables are in bad shape
- More screws backing out
- 1Holes in the metal on transition strip
It looks like something hit the roof, causing the paint to wear off prematurely. Without the paint, the metal can rust, causing holes. This is what happened here. We are pretty confident that this was the leading cause of the leak. We cleaned and caulked this area with NP1.
Go To Pin - 2Lots of loose screws
If you have a metal roof with a little bit of age on it, then you’re going to have screws that are backing out. They basically go hand-in-hand.
Go To Pin - 3This is going to be a serious issue!
As I said, this will be a severe issue sooner than later as much of the siding is curling, cracking, and breaking apart.
Go To Pin - 4Bottom corners of gables are in bad shape
We caulked around this area and the other side, as you can see the top of the green flashing behind the siding. If you can see it, then rain can get behind it.
Go To Pin - 5More screws backing out
We must have screwed back at least 20 or 25 screws in this area.
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