Posts Tagged ‘Polarfoam PF7300 Soya’

Farewell Toronto, Bonjour Montreal!

July 28th, 2011

Just a quick heads up here. I haven’t been producing many articles this summer and that’s because I’ve been busy packing. We’re going on an adventure — moving to Montreal!

I love Montreal and I’m familiar with the city as my husband and I both went to university there. However, I have to admit that I’m looking forward to living there without studying for mid-terms or exams, and when I have enough money so that I can buy good wine instead of the infamous Cuvee des Patriots, available in a local depanneur (corner store) for $2.85 — back in the ’80s, I’m sure it’s creeping up on $5 a bottle now. Even we, young, poor students recognized that it was better used as a salad dressing than poured into a wine glass!

So what does this mean for the blog? Yes, I will still continue to write it, and I will still feature some Toronto businesses — but by necessity, the blog’s scope will expand to Montreal and Toronto, with maybe some Ottawa thrown in for good measure. The point of what I write about is to help you find green building materials, in addition to demystifying green building itself.

Montreal has a very vibrant green building sector as well as many companies that produce products for the market, a few I’ve already written about such as Montauk, PolarFoam/Heatlok (Demilec) and Adbond. I’m looking forward to exploring the green companies in and around the city, writing about them and their efforts to lighten their environmental load.

In the meantime I have some great Toronto articles coming on Transition Towns, Permaculture, green walks, paint and more, so stay tuned!

Oh, and if you have any suggestions about interesting Montreal-based companies I should get to know, leave a message in the comments section or contact me at cathy “at”

Heatlok Spray Foam Insulation: Soy and Recycled Plastic

July 21st, 2010

Heatlok Spray Foam Insulation

I first heard about  Heatlok Soya sprayfoam insulation when I visited The Rosedale House back in May. I was intrigued by it because, coincidentally, I’d just read an article byBuilding Green that stated that extruded polystyrene and hydroflurocarbon based sprayfoam insulations are so energy intensive that a homeowner could never reap the benefits of energy efficiency these types of insulation because of how much energy is used to produce the products! Meanwhile, Terrell was adding not the usual 3 3/4″ inches building code demands, but rather 5 inches of foam for a projected R value of 30. When I asked her about the product, she said that the insulation was made from vegetable oil, recycled plastic bottles and soy.

This product deserved some further investigation.

Heatlok Soya Sprayfoam is the latest insulation product made by Demilec a manufacturer based in Quebec. According to its website, Heatlok is made from renewable and recycled materials and is the first sprayfoam to meet the Montreal Protocol for ozone depleting substances as it contains no hydroflurocarbons.

The advantage of sprayfoam insulation versus rigid boards or batts of insulation is that it can seal corners and joints more effectively than the latter two making a structure more airtight. In addition, sprayfoam can act as a vapour and air barrier, as well as an insulator, meaning that fewer materials are needed on a jobsite. The sprayfoam consists of 40% recycled plastic bottles, which according to the website means there are about 1000 plastic water bottles in every tank of sprayfoam.

Sprayfoam and R value: According to Rich Krechowicz of  Callrich Eco Services, who is a Heatlok installer, only the Demiliec soya insulation product is a “type 2” sprayfoam with  a long term R value of 6. As he explained to me, there are two types of sprayfoam, type 1 and type 2. When measuring R value for sprayfoams, it is measured in three stages : initial (just after it’s sprayed), aged, (after 180 days) and long-term (after six months). In the US, sprayfoam manufacturers are allowed to use the aged R value term when advertising a sprayfoam, in Canada, they must use the long-term number, so if you’re doing your research and wondering why the same product has two different R values, it might be that you’re looking at American and Canadian sites. All other sprayfoams fall into the type 1 category with a long-term R value of 5.

Cost: Rich said it’s hard to estimate cost because it really does depend on how big the job is. Set-up costs are the same whether you’re spraying 200 or 1000 square feet. If you’re interested in using this product it’s best to call for a quote.

Note: It turns out I have written about this product before, but under its other name, Polarfoam PF 7300-Soya. Demilec is the manufacturer of this product but it is distributed under two different names: Heatlok and Polarfoam PF 7300-0 Soya.

For other installers of this product, please visit the Polarfoam and Heatlok websites.

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