a wood (usually cedar or fir) pergola starts at about $10,000, says ilott, and doesn’t stand up as well over time, needing to be resealed and stained over the years. it’s also susceptible to mould and rot.
aluminum pergolas are durable and long-lasting — up to 30 years — and are resistant to rust, warping and cracking. they range from around $1,300 to over $6,000.
vinyl structures are less expensive — anywhere from $950 to over $6,000 — and easier to maintain but more prone to damage from the elements.
vandenberg says a handy homeowner could probably build a wood structure, but metal post and frame is best left to a contractor. he also notes there can be a convoluted permitting process that, depending on your municipality, can be either quick or slow.
ilott says louvered roof systems are becoming more popular, albeit more expensive (ranging from $2,000 for diy to $35,000 for professional installation).
“they’re aluminum so really low maintenance and they can bear the weight of snow, and they have a gutter system for rain. when the sun is out you just tilt the louvres and get full light coming in.”
shade trees
you can’t get more natural shade than a broad-leafed tree. there’s also the bonus of the beautiful foliage they add to your backyard, not to mention the potential savings on energy bills: b.c. hydro estimates that shade trees planted on the south or west sides of homes can reduce cooling costs by as much as 35 per cent.
but with newer homes being built on smaller acreage, there’s precious space for large, stately shade trees. better options include species that are narrow and vertical. still, a good deciduous tree can cast a nice shadow. the downside is that they drop their colourful leaves every fall, making for a laborious cleanup.
“but once the leaves come off, light comes during the winter,” says vandenberg. “maple trees with the bigger leaves work well but they also don’t get so big that they become a danger to the house in 20 or 30 years.”