Purpose

Exterior caulking is applied to seal gaps, joints, and cracks in various outdoor surfaces.

It prevents water infiltration, air leaks, and insect penetration, contributing to energy efficiency and structural integrity.

Materials

Common caulking materials for exterior applications include silicone, polyurethane, and latex-based caulks.

Some caulks are specifically designed for certain surfaces, such as wood, metal, concrete, or masonry.

Application

Caulk is applied using a caulking gun and is dispensed along joints, seams, or gaps.