What Materials Are Used for Emergency Board-Up?

Plywood is the most common board-up material because it is sturdy and readily available. Its cross-laminated layers resist bending and hold up well against wind and rain. Oriented strand board (OSB) is often used as a more economical alternative. Both materials come in standard four-by-eight-foot sheets that the pros cut to fit the specific opening that needs securing.

The thickness of the wood panel is critical for security. For standard window and door openings, half-inch plywood is usually sufficient. If the opening is large or if there is a risk of impact, three-quarter-inch material provides extra strength. The pros select the appropriate thickness based on the size of the gap and the potential weather threats, ensuring a reliable barrier.

For very large breaches, such as a section of missing roof or a collapsed wall, solid wood boarding may not be practical. In these cases, the pros use reinforced, heavy-duty tarps. These tarps are made from woven polyethylene or vinyl with reinforced corners and grommets. They are designed to withstand sun exposure and harsh weather for several weeks, providing a temporary waterproof seal.

The installation of a tarp requires careful technique. The pros stretch the tarp taut over the opening to prevent water from pooling. They then secure it using long two-by-fours or specialized strapping systems, screwing the wood battens directly into the roof deck or wall framing. This method, called a tarp cap, distributes the wind load and prevents the tarp from tearing loose.

The process begins with a safety assessment. The pros will check for electrical hazards, structural instability, and other dangers before starting work. They then measure all openings and cut the boarding materials to size. Finally, they securely fasten the boards, making sure edges are sealed to keep out water and wind. The goal is to create a stable, temporary enclosure.

Once the home is secured, the focus shifts to the underlying cause of the damage. For water-related incidents, this means locating and stopping the leak, then beginning water extraction and drying. The board-up is a temporary measure that buys time for these essential restoration steps. Further information on water removal is available in other general help articles.