What is the most efficient passive solar home design?
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What is the most efficient passive home design?
Peter Riley
Jan. 29, 2020Last updated: Sept. 9, 2020
Are styrofoam forms a good idea?
为了找到最有效的被动屋墙,如果你的目的是减少碳足迹,从选择低能耗的材料开始。不同的绝缘材料每英寸的R值是不同的,这影响了操作被动住宅所需的能量,但这并没有解决隐含碳,这意味着首先制造材料所需的能量。这方面最终在绿色住宅建筑行业得到了一些牵引,最近发布了一个免费的碳计算器,它可以让你输入不同的材料来查看整体影响。
Calculating the carbon footprint of buildings with the EC3 calculator from Skanska
TheLEED Home Rating System在材料选择上总是会有加分(奖励当地生产、回收和再生的建筑材料,但不幸的是,被动屋认证到目前为止还没有让人们关注这一点。PH关注的是加热和操作住宅所需的能量,但它没有考虑到一些材料具有明显更大的隐含能量这一事实。
We think that will begin to change soon. Here you can findeverything you need to know about Passive House certification, and back to wall design – any material can be chosen, success is measured by the right amount and proper applications of insulation and a focus on airtightness. Here is an example of a Passive House wall system with Larsen trusses and cellulose insulation that has an extremely low carbon footprint. So this full life cycle of that home would be easily 10 or more times lower than a Passive House made of ICF, even if their heating bills were identical to the penny. Material selection is very important! Thanks for the question.