How to Seal an Aluminum Gutter

Your home's gutter and downspout system is its best defense against water damage. Moving the water off the roof and discharging well away from the foundation is the best method for assuring a dry basement. This system needs periodic maintenance to remove debris from the gutters and seal up the joints. Inspecting the entire system every year is a good habit that every homeowner should do religiously. If you discover a leaky joint, repairing it is a breeze.

Things You'll Need

• Towel
• Gutter sealant
• Caulking gun
• Utility knife
• Putty knife

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Instructions

1. • 1

     Clean the surface around the joint thoroughly to remove debris and dirt. Dry the surface with a towel.

   • 2

     Install gutter sealant inside the caulking gun and cut off the top with a utility knife. Puncture the inner seal of the sealant tube with a long nail inserted down the discharge tube.

   • 3

     Apply gutter sealant liberally around the seam. Spread evenly and smoothly around the joint with a putty knife. Allow four to six hours to dry.