But there are several less obvious symptoms you should be on the lookout for such as.
Garage door frame rotted.
In case you have had a plumbing accident water in your garage will move to your garage door.
The main cause of rotted garage doors is water damage.
Mix polyester wood filler or bondo wood filler and press it into the recess with a putty knife.
Pry on the crowbar to lift the trim and loosen it.
These dark spots are caused by the growth of fungi as they feed on moist wood.
Wood garage doors tend to absorb all the water and start expanding.
Tap on the back of it with a hammer to drive the tip in as far as you can.
To repair rotted door frame first remove rotted wood with a 5 in 1 or other sharp tool.
Some garage doors are.
With time the wood frames and bottom starts rotting and breaking down.
Drafts around the exterior door.
Insert the tip of a flat crowbar under the trim.