A waterproof sealing product such as ge clear gutter caulk available on amazon is easy to use.
How to seal aluminum gutters.
Allow the insides of the gutters to dry out and brush leaking seams clean.
One brand of tri polymer caulks the ct1 sealant is a hybrid polymer formulation that contains no solvents.
See below for a shopping list and tools subscribe to this old house.
Learning how to fix leaky gutters is an easy inexpensive project you can do yourself.
You can buy gutter caulking compound online.
For sealing and joining lap seams in aluminum or vinyl gutters and downspouts we recommend a permanently flexible and water resistant sealant.
It creates a powerful and waterproof protective seal making it perfect for repairing not only gutters but also doorframes windows vents toys appliances gaskets weather stripping and even clothing.
Gutter sealer comes in squeezable or in calking gun tubes and the price can run you from about 5 to 10 depending on the amount and quality.
This means the caulk will not shrink as it cures.
One of the most common repairs we complete out in the field is to seal leaky gutters.
Patch small holes with roofing cement.
If it is large use a piece of galvanized metal flashing.
You should never need to apply sealer to the outside of the gutter.
If there is a functionality issue with the aluminum where the joint is moving around no amount of sealant.
Apply silicone or special gutter caulking compound along the seams on the inside and outside to seal the leaks as shown above.
Gutter caulks are designed to work in the conditions gutters face and as such they last much longer than non gutter caulks.
Applying sealer to rain gutter joints.
If the hole is small you can use plastic roofing cement.
If the metal gutter parts have rusted through you can quickly and easily patch it.
In the category of professional caulking compounds the polymer and tri polymer caulks are excellent choices for repairing leaky gutters and sealing new gutter installations.
This old house general contractor tom silva has a fast fix for a dripping rain gutter.
If you have white gutters use a white caulk.
If possible go with a caulk that is specifically formulated for gutters.
Use a putty knife to spread the cement generously around.
If your gutters are painted in another color choose a clear caulk.