Going the Extra 3,000 Miles for Passive House Windows and Doors
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When it comes to green building, you can't always get what you what. So how do you get what you need? Whole-window R-value of 6.7. Not too shabby! Note: some of the links below will only work for registered subscribers Building... Ultra-high efficiency isn't here yet EBN just reviewed high-performance exterior doors , and we list the same efficient doors in GreenSpec . On the residential side, more than with windows, the same level of quality for doors isn't readily available domestically. According to EBN, "In general, German-made Passive House doors are not widely available and are much more expensive than the best North American-made residential doors. However, the performance differences between the two are too striking to ignore." (With all this talk about ultra-high performance it's important to remember, in a small home, two code-compliant exterior doors make up just over 1% of total surface area of the building--so if you're on a tight budget don't stress about this one). We're curious: who among you are importing products from overseas suppliers to meet specific product performance demands? What products have you gone through the trouble to purchase and import from afar because you just can't find what you're looking for domestically? While in GreenSpec we try to stick to products that are readily available domestically, sometimes we include products that are harder to get but too good to ignore. Would you like to see more of these in GreenSpec or is that just too frustratingly out of reach? The Schüco windows Andrea and Ted chose are made with PVC (minus the nasty plasticizers). A new expanding tape A few other interesting window product tips--Ted and Andrea used Tremco Expanding tape for some applications, but found it expands too fast for windows, and so went to Iso Chemie's Iso Bloco One Tape . This tape is fitted to the window prior to installation then expands over approximately five days for an insulating airtight and watertight seal. Last year we explored another option, CC Expanding Sealer . We're looking forward to keeping an eye on what other product choices this brave duo makes as the project proceeds into the interior, including what passes Ted's sniff test .