How To Seal Aluminum Gutters

Learning how to fix leaky gutters is an easy inexpensive project you can do yourself.

How to seal aluminum gutters.

Simply squeeze into cracks and holes then apply a further coating around the entire gutter joint. If you have white gutters use a white caulk. For sealing and joining lap seams in aluminum or vinyl gutters and downspouts we recommend a permanently flexible and water resistant sealant. Gutter sealing happens from the inside of the gutter.

This means the caulk will not shrink as it cures. 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. You should never need to apply sealer to the outside of the gutter. If the metal gutter parts have rusted through you can quickly and easily patch it.

Apply silicone or special gutter caulking compound along the seams on the inside and outside to seal the leaks as shown above. Allow the insides of the gutters to dry out and brush leaking seams clean. Patch small holes with roofing cement. If it is large use a piece of galvanized metal flashing.

This old house general contractor tom silva has a fast fix for a dripping rain gutter. If the hole is small you can use plastic roofing cement. You can buy gutter caulking compound online. 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.

One brand of tri polymer caulks the ct1 sealant is a hybrid polymer formulation that contains no solvents. If possible go with a caulk that is specifically formulated for gutters. If there is a functionality issue with the aluminum where the joint is moving around no amount of sealant. One of the most common repairs we complete out in the field is to seal leaky gutters.

Gutter caulks are designed to work in the conditions gutters face and as such they last much longer than non gutter caulks. Use a putty knife to spread the cement generously around. 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. A waterproof sealing product such as ge clear gutter caulk available on amazon is easy to use.

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.