more harm than good, and their payback period may be more extended than the functional life of the building. And at any rate, it is much longer than we have time to curb climate change. A Passive House insulated with cellulose, on the other hand, will do good by the climate over a relatively short period of time. And the payback period is short. 2. So you’ve chosen to use low-carbon materials – great! Now you have to ensure the flat roof is air-tight to keep your roof sheathing from rotting, how to get a good R-value in the walls, and what to use below grade. Implementing these materials in an already reasonably designed building may not be possible without making significant changes, but it might. A good rule of thumb is to use wood instead of steel or metal framing as much as possible and use plantbased insulation whenever possible. If you can specify FSC or SFI wood products, then you will have a carbon storage effect. If not, at least the number will be low. Eric Holstine 208-890-3914 www.alder.com 208-629-0763 www.alder.com e@alders.com 202-01 East 37th Street, Garden City, ID 83714 Space Management �Daylighting Specialists Modernfold Skyfold Smoke Guard Total Door Kalwall Kalwall + Lumira™ Structures Unlimited Solatube Eric Holstine — continued on page 40 7 EARL MULLINS, PE 10400 Overland Road #211 Boise, ID 83709 www.mullinsacoustics.com (208) 514-6264 MULLINS ACOUSTICS architectural environmental and industrial noise control HEALTHIER NEIGHBORHOODS We advocate for policies that unite architects, public health experts, and communities in creating healthier ways to live and work. For instance, public health research shows that 95 percent of Americans’ time is spent indoors—so we’re developing new design standards and practices that ensure communities have safe, appealing places to walk, exercise and play. 39
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