Re: House II, Porch Siding
Chillimau, The soils engineer that was recommended to me by the civil eng who did the foundation design on my mom's house is Arvel Williams. The civil said he likes this guys work and feels comfortable with his jobs. I'm not sure he would want his number on the WWW but I can give it to you privately if you want it (just say).
I really like the walk out idea as does my wife. The house will look like a three story from the south and a two story from other directions. Yeah, I backed off the earth sheltered house. By my analysis, there isn't enough gain in energy efficiency going earth sheltered to warrant losing the view we have available. I have not lost "faith" in earth sheltered designs with 3-5 ft of earth cover on top and spent about 7 years studying and preparing on the topic. Part of the motivation for earth sheltered housing is living at ground zero in tornado alley. Another big part was efficiency.
Well, as they say, once you get a house so tight and insulated that you can heat it with a candle and cool it with an ice cube there just isn't enough budget in HVAC to warrant getting too exotic. My mom's house is averaging about $50 month (all electric). I set the thermostat and let the heat pump do its thing day and night and June's electric bill was $49.xx. Last winter we used 300 gal of propane in the gas log AND some electric heat (heatpump). I expect my house to be more efficient that hers and although larger, not more expensive to heat and cool.
How much can you reasonably spend on energy efficient systems to try to save a slice of the $50/month. For example, let say you could buy a system that would heat and cool the house and use only 1 penny's worth of electricity for the year. Given our average bill of $50/month that would save us $599/yr. If that MIRACLE SYSTEM cost say $11,990 then what would the payback time be? A hair over 20 years! IF it were a $6000 system it would pay for itself in energy savings in 10 years. But lets get real, systems don't run on imagination they use KWh and can be quite expensive (price a ground based heatpump). If the breakeven period for an energy efficiency upgrade is a longer period of time that either your life expectancy or the life expectancy of the system then it is not such a good investment.
Safe room, you say? Our master suite and one guest bedroom will be safe rooms with all ceilings, floors, and walls, interior and exterior, for those rooms, a minimum of 8 inches of steel reinforced concrete. One of the contractors who will bid the job does regular poured walls but would have to be a real bargain to compete with ICFs since the ICFs provide insulation and have "nailer" strips every 6 inches so no fir out is required.
Yes termites can tunnel through EPS but don't eat it. There are some excellent anti-termite applications that will prevent termites from getting to the EPS. My "jury" is still out but I haven't ruled out ICFs all the way from foundation to first floor plate. Our victorian style will probably not have perimenter walls in the upstairs, so no ICFs above the first floor. Upstairs will be about 1/2-3/4 the floor space of the basement or ground floor in attic rooms with dormers.
Of course there will be more to see after we get further along but for a free cold soda and chat, drop by anytime you can catch me. I'm here much more that I am gone. If there is an open door at the shop, I am probably doing something there. Otherwise probably at my mom's or tractoring. That said, I'm going to take my truck and tractor in to Ada tomorrow afternoon. In the morning a local dirt guy is taking a look at my site in prep for some bids.
Patrick