选择地板以优化太阳能增益有多重要？
We are building in (I believe it is) zone 6, Cranbrook B.C.
我们正在试图获得正确的ratio of floor to window area on the south face. Trying to comprehend the various factors such as amount of direct and indirect sunlight onto the different surfaces and how that effects the ratio.
2 questions.
How important is the choice of flooring? I understand that a dense mass such as 3″ of concrete/tile might be the best choice however the others involved are leaning towards 3/4″ hardwood (Hardwood on conc slab in the walkout bsmnt and on plywood subfloor on 1st floor)
When calculating floor area do we include the rooms separated by walls and doors? (bedrooms and bthrms along the north side) What about a kitchen on the north side open to the south facing main area?
感谢您提供这些问题的信息以及有关此特定设计领域的任何良好信息。
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Replies
Richard,
问：“地板的选择有多重要？”
A. You have asked a fairly general question, so I will give you a general answer: not very. Other factors (glazing area, glazing SHGC, overhang depth, envelope tightness, insulation levels) are far more important.
问：“计算地板区域时，我们是否包括墙壁和门（北侧卧室和浴室）分隔的房间？”
A. For what purpose are you measuring the floor area? I presume you mean for the purpose of calculating the south glazing area, but I'm not sure. These glazing ratios aren't hard and fast, but it's safe to say that you can include the areas of any rooms with doors that are usually left open during the day.
The floor material won't much affect total gain, but if you are at the upper end of glazing ratios, the floor material choice will impact how much the room temperature varies over the day. There is a big difference in the thermal storage capacity of the flooring options you mention.
Thanks Martin and Damon
达蒙（Damon）使用了我正在寻找的短语...“地板材料）
We are designing to have a tight envelope, high insul levels, minimal thermal bridging, overhangs designed to shade summer sun, well designed windows(glazing, orientation, SHGC). So now we are considering the 'Thermal Storage Capacity' of the materials used for flooring and for an interior wall that runs along much of the E to W axis 13' in from the S wall. Also trying to calculate the ratio of the South facing windows to the floor area while considering the materials that are recieving the direct and indirect sunlight.
我试图理解在从头开始阅读“绿色”的这些方面的这些方面。（约翰逊和吉布森，汤顿出版社），以及在此处讨论GBA。我是一个建筑商，试图理解这些方面。
Richard, can you please e-mail me at[电子邮件保护]. I am a certified energy advisor living in Creston, and prior to moving to Canada in 2007 I built very energy efficient houses in S. Ireland. I might be able to give you some help based on my own experiences.