How to waterproof a deck or balcony

1. Clean the deck: Clean the deck thoroughly to remove dirt, grime, and any old sealant or stain. 2. Sand the surface: Sand the surface of the deck to rough it up and create a better surface for the waterproofing product to adhere to. 3. Apply waterproofing product: Choose a high-quality waterproofing sealer or stain and apply it evenly, following the manufacturer's instructions. 4. Allow drying time: Allow the waterproofing product to dry completely, which can take several hours to a full day, depending on the product and conditions. 5. Re-apply as needed: Re-apply the waterproofing product as needed, following the manufacturer's recommended timeline, to maintain waterproofing protection. 6. Maintain the deck: Regularly clean the deck and address any damage, such as cracks or splits, promptly to prevent water damage.