Go over the area afterward using rust resistant outdoor spray paint the same color as the rest of the gutter.
Best way to seal gutter corners.
You don t want to cause a restriction.
If there is a gap in the joint you should use your cardboard or plastic spreader to force sealer into the joint.
Here is how to properly seal any type of gutter miter.
After removing the old corner clear away the old sealant with the 121 high speed cutter.
The joint connection between the downspout and the gutter is many times the most likely source of a corner leak.
Rust is another factor in gutter leaks so if you notice any buildup on your metal pieces this will be the time to take care of it.
This old house general contractor tom silva has a fast fix for a dripping rain gutter.
Spray the gutter with a garden hose if the source of the leak is not obvious.
Simply squeeze into cracks and holes then apply a further coating around the entire gutter joint.
Take an abrasive pad or wire brush and scrub the debris away from the leaky area.
If the precise source of the leak isn t clear spray the area with a garden hose to identify the crack hole or gap where water is seeping out of the miter.
A large or small hole is an obvious problem but leaking joint connections or small cracks may not be obvious.
Position the new corner and drill holes for the pop blind rivets.
One of the most common repairs we complete out in the field is to seal leaky gutters.
It s specially made for the gutter installation industry.
Butyl rubber caulks marketed by dap as their butyl flex line is an excellent choice for repairing leaky gutters.
Use the wire brush to scrape away loose pieces and then sand the metal to smooth the lip.
Try to avoid the clear as the uv rays from the sun break it down quicker.
Use a pop blind rivet tool to install new color matching rivets.
The caulk adheres quickly and as it cures it remains flexible.
See below for a shopping list and tools subscribe to this old house.
Time after time we see the failed efforts of well intentioned diy ers head up the ladder and attempt to silicone and spray their way to success.
Use your fingers and get the sealant right into the seam and up both inside walls of the gutter.
Be liberal when applying the sealant directly onto the seam that leaks.
However more often then not weeks or even days later the leak returns to the befuddlement of the home owner.
Squeeze a bead of sealer along the seam joint and then smooth the sealer to allow easy flow of water through the gutter.
A waterproof sealing product such as ge clear gutter caulk available on amazon is easy to use.