Are there rules about deck design and the materials I can use? How do slivers form and how do I get rid of them? Before you build a deck, make sure you understand all local bylaws and Alberta Building Codes regarding deck construction. The 2006 Alberta Building Code changed rules for required bracing and anchorage to the foundation, the type of fasteners used and foundation depth. Make sure you are familiar with these rules before designing and building a deck. For example, wood I joists can only be used in interior applications protected from rain or moisture and railings are required on decks more than two-feet above grade. In Alberta, handrails are also required on Wood is a natural material and reacts to weather changes. Horizontal surfaces, such as decks and the top of handrails, are subject to significant traffic and will sliver more readily than vertical surfaces. Wood slivers form when the wood surface is subject to repeated wet/dry cycles which cause the wood fibres to bend and twist. The fibres want to return to their natural shape and in trying to do so, may rise above the original surface. Over time, this movement will form a sliver. exterior steps with more than three risers. Many alternatives to wood, such as vinyl or wood/plastic composites are now commonly used for deck construction. Although more expensive, these alternatives require less maintenance and may have a longer lifespan than wood. Follow manufacturers’ instructions to maintain these materials. While the forming of slivers cannot be stopped, you can minimize slivers by applying a protective coating such as paint, stain or a water repellent that minimizes water penetration into the wood and protects the wood from the sun. If the wood has been exposed to the weather for more than two weeks, sand it with medium grit, garnet sandpaper (80-100 grit sand paper) before applying a protective coating to remove weathered fibres. This will allow for better coating adhesion. You can minimize slivers by applying a protective coating such as paint, stain or a water repellent that minimizes water penetration into the wood and protects the wood from the sun. 20 ANHWP.COM • ALBERTA NEW HOME WARRANTY PROGRAM