Waterproofing for a Stone Deck

Water Damage to Stone Decks

• It may come as a surprise, but stones and the concrete adhering them in decks are quite absorbent, although it takes time for damage to manifest itself. Depending on the elements present in rainwater, stones used in decks can wear down, develop leaks or accumulate stains. In cities that experience high atmospheric pollution, acidic elements in rainwater can eventually cause stones to erode at the surface. Even lower levels of salt in rainwater and groundwater can cause concrete and stones to crack in the long run.

Hiring a Professional

• If you don't have the time or the proclivity for home projects, you may want to consider hiring a contractor for your stone deck waterproofing. The main type of waterproofing involves coating the deck with a thin layer, or membrane, that's water-resistant. If you choose to hire a professional, this is what he most likely will use. Before hiring anyone, though, you need to ask the right questions. Find out, for example, how environmentally friendly the products he'll be using are, the prices he charges, and the length of the warranty. You should shop around and compare prices to get the best deal, but be aware that hiring a professional will be more expensive than doing it on your own.

Do It Yourself

• Instead of hiring a contractor, you can try handling your stone deck waterproofing on your own. You'll be saving money this way, but you should be aware that there are pros and cons to different products. Waterproof membranes made up principally of silicates have no adverse effects on the environment, protect against cracking, protect against leaking, and resist rainwater high in acidic elements. Silicate membranes are the best waterproofing products available.

After Damage Has Occurred

• If you find yourself in a situation where damage is already beginning to occur before you've taken preventive measures, you should first call a contractor. Damage could be worse than what you're seeing; if there's leaking, for example, you could be looking at damage to your home itself. A contractor will be able to accurately assess damage and other stone deck issues, propose the best way to fix problems, then seal the finished deck so that the problems don't come up again.