How to choose the right product
To retain the wood’s natural color, you need to seal your deck yearly. Here’s how to choose a sealant.
Conventional sealers: Most mainstream home improvement stores sell oil- and water-based polyurethane. Oil-based polyurethanes contain high levels of toxic volatile organic compounds (VOCs) that compromise indoor air quality. Water-based products have far fewer VOCs, but they also use petrochemical additives (such as hardeners) that contribute to environmental pollution.
Healthier alternatives: Plant-oil preservatives such as tung and linseed oil are also effective and healthy. These must be applied to the deck once a year to be effective.
Au Naturel: A deck made of certified sustainable hardwood can last decades longer than one built with softer, sappier wood—even with no sealant or stain put on it.
Sit in on dozens of practical workshops from the leading authorities on natural health, organic gardening, real food and more!LEARN MORE