There are so many different types of caulk. Silicone caulks, white runny caulk, thick and viscose caulk, and more. If you know the proper steps to achieve an adequate seal, the effectiveness of your caulking job is easier to guarantee.
Caulking and sealing wood joints on the exterior of a home is an essential maintenance task that helps protect the structure from water damage, pests, and air leaks, while also improving its overall energy efficiency and appearance.
Table of Contents
- Selecting Your Caulk
- Prepare and Apply
- Regular Inspection and Maintenance
Selecting Your Caulk
Proper techniques in caulking and sealing are crucial to ensure durability and effectiveness. First, choose the correct caulk. For exterior wood, use a high-quality, exterior-grade caulk made out of silicone or polyurethane are preferred due to their flexibility, durability, and resistance to weather elements.
Prepare and Apply
Before applying caulk, ensure that the wood surface is clean, dry, and free of old caulk, dirt, and debris. This improves adhesion and effectiveness. Additionally, you want to ensure that the wood is not damaged and that all damage is repaired prior to caulking.
The best time to apply caulk is during installation. All wood should be primed, painted, and caulked before being installed on the house. When installing the painted boards, “butter” the joint.
Apply a large quantity of caulk to the flat surface of the board, spreading it like butter – this way, when the two boards are installed next to each other, a thick layer of caulk seals any gaps.
Press the joint together and wipe away any excess caulk. The end result is a joint that is protected with three different coatings, all serving to seal the board.
Caulk needs time to dry and cure properly. Avoid touching or painting over the caulk until it is completely dry. Check the manufacturer’s instructions for specific drying times.
Regular Inspection and Maintenance
Inspect caulked joints periodically for cracks or gaps. At Rogall + Co. we recommend inspecting all joints one to two times per year. Exterior caulking can deteriorate over time due to weather exposure. If you find any damaged or failing caulk, remove the old caulk and reapply a new bead as needed.
Caulking and sealing wood joints on the exterior of a home is a relatively simple yet highly effective way to protect and maintain your property. By following these proper techniques, homeowners can ensure a watertight seal, prevent structural damage, and enhance the overall aesthetic appeal of their homes. Regular maintenance and prompt repairs are key to the longevity of the wood.
