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  • What you can see

  • are all the really impressive things behind the house. And one of those is the drywall.

  • The drywall is 95% recycled drywall. That's the paper

  • and the gypsum which is on the inside. So it's 95% recycled.

  • The paint which is on the outside is 100%

  • recycled paint, low VOC, water-based paint. So you can go to any building store and

  • buy

  • this similar paint right now without any problem. The wood

  • inside the house is about eighty-five percent FSC-certified.

  • All the lighting in-house is compact fluorescent

  • except for what's in the kitchen which is halogen.

  • So we want to demonstrate that opportunity around that.

  • So there are lots and things which you can't see

  • which are in the walls and on the walls, which are very, very sustainable.

  • The other thing that is behind that drywall is the structure of the building.

  • This building uses advanced framing and what that means

  • is that it's typical stick framing housing, but instead of being every

  • every 16 inches on centre, the wood is on every 24 inches on centre.

  • And by doing that we reduce the amount of wood to build this house

  • by about 20%. This house here has 24 inches on center,

  • 2 x 6 walls, which is typical in today's construction.

  • We filled that 6 inches with 6 inches of Roxul insulation.

  • And Roxul is a really unique insulation product because

  • it's made from recycled slag.

  • Slag is a recycle material from

  • iron ore, and they basically spin it into a

  • insulated bat which has one of the highest R values around. It's about R 24

  • for the 6 inches. Code requires that a house have R 20.

  • Most houses have all these studs that go from the inside to the outside, so their called

  • thermal bridges. They actually have less of an R value

  • than the insulation which is directly behind them. By putting that insulation

  • all around the outside, basically what you do, you

  • basically stop that thermal bridge from happening and it makes a house a much

  • more

  • insulated envelop.

What you can see

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B1 中級 美國腔

綠色建築材料。可持續房屋的原型 (Green Building Materials: The Archetype Sustainable House)

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    eddylktam 發佈於 2021 年 01 月 14 日
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