The short answer
Gather Your Materials
Start by collecting the right supplies. You will need exterior-grade plywood at least 1/2 inch thick, wood screws or concrete screws, a drill or screwdriver, a hammer, and a tape measure. Thicker plywood resists wind and flying debris better, so use 3/4 inch if you have it.
You might also want a pry bar to remove any remaining glass and a pair of heavy work gloves to protect your hands. If the window is on an upper floor, use a sturdy ladder and have someone hold it steady. Keep a flashlight handy if the power goes out.
Measure and Cut the Plywood
Measure the width and height of the window opening from the outside. Add 4 to 8 inches to each dimension so the board overlaps the frame by 2 to 4 inches on every side. This overlap gives the screws a solid hold and keeps wind from pushing the board inward.
Cut the plywood to size using a circular saw. If you cannot cut it on site, measure carefully and ask the lumber yard to cut it for you. For a quick fix, you can use a single large sheet that covers the whole window, but overlapping boards are stronger. Pre-drill pilot holes through the plywood about 2 inches from each edge, spaced every 8 to 12 inches.
- Use exterior-grade plywood, not particle board
- Add 4 to 8 inches to the window measurements for overlap
- Pre-drill screw holes to prevent splitting
- Wear gloves and safety glasses when handling glass
- Have a helper hold the ladder steady
- Keep screws long enough to bite into the window frame
Secure the Board over the Window
Position the plywood over the window opening, centered so the overlap is even. Drive screws through the pilot holes into the window frame or the siding. Use at least two screws per side, and more if the window is large. For masonry walls, use masonry anchors or concrete screws.
Make sure the board is flush against the wall with no gaps. Gaps let water and wind in, which can worsen the damage. If you are boarding up a door or a large picture window, add a horizontal brace across the middle for extra strength. Test the board by pushing on it from the outside.
Handle Broken Glass Safely
Before you board up, remove loose glass from the frame. Use a pry bar or hammer to gently tap out any shards that are still attached. Sweep up the glass from the floor and surrounding area, and place it in a thick trash bag or a cardboard box for disposal. Wear heavy gloves and closed-toe shoes.
If there is water on the floor from rain, be careful, wet glass is slippery. Use a wet/dry vacuum to pick up small shards if you have one. Tape the bag closed and label it as broken glass so anyone else knows to handle it carefully. Do not try to salvage the old glass.
When to Call the Pros
If the storm is still active, the window is large, or the damage is too dangerous to handle, do not risk it. Your safety comes first. Leave the boarding to local water damage pros who have the right equipment and experience to secure the opening quickly. They can also help with water cleanup if rain has already come in.
After the storm passes, you will need a permanent repair. A window replacement professional can install a new window properly. If water got into your walls or floors, water damage inspection and drying services may be needed to prevent mold and structural issues. In Rockwall, spring storms can bring hail and strong winds, so acting fast matters. Policies vary, and your insurer decides what is covered. Take photos of the damage for your insurance records.
- Call for help if the window is on a second story
- Seek shelter if the storm is still severe
- Cover the opening with a tarp if you have no plywood
- Take photos of the damage for your insurance records
- Dry wet surfaces to limit mold growth
- Keep children and pets away from the broken glass
Need help right now?
Phones are answered 24/7 for Rockwall and nearby communities.
Call Now (469) 698-4610Frequently asked questions
What type of plywood should I use?
Use exterior-grade plywood, at least 1/2 inch thick, preferably 3/4 inch. Exterior-grade plywood is designed to withstand moisture and warping. Do not use particle board or interior plywood, as they will weaken quickly when wet.
How long will a board-up last?
A well-secured board-up can last for several days or weeks, depending on the weather. It is a temporary fix. You should arrange a permanent window replacement as soon as possible, especially if the area is prone to more storms.
What if I cannot measure or cut plywood?
If you cannot measure or cut plywood, you can use a large tarp and duct tape as a temporary cover to block wind and rain. But a tarp is much weaker. For a secure board-up, consider calling local water damage pros to handle it.