Rethink Your Life!
Finance, health, lifestyle, environment, philosophy
The Work of Art and The Art of Work
Kiko Denzer on Art
[Cob] thick walls etcDean Sherwin costman at verizon.net
Tue Dec 23 08:49:27 PST 2008
At 03:00 PM 12/22/2008, Shody Ryon wrote: >I think the thermal attic system is the most energy efficient >http://thermalattic.com/ >system and it can be built at a very low cost. The site is >new, so it doesn't show all the ways to use it yet. Perhaps >you can use this info some how. The attic should have its own >insulation envelope separate from the living space, but if you >can not afford it, perhaps it can be planned for and built >over time. The attic has shelves for +- 3,000 2L soda bottles >filled with water. I suspect 3,000 might be for a smaller house. > >The weight of the bottles might need to be calculated but in >most cases it falls with in the amount a house built to code >can hold. Code loading for residential is usually 40 lb /SF I think but I don't believe attics have any specified loading, if there were it might be 25 Lb/ SF (Now we have the IRC in most parts of the country (USA), replacing BOCA for us & I'm not up to speed.) Let's see, 1 L of water = 1 kilogram so 3,000 is 6,000kg, thats 13,200 Lb. Only 330 SF of floor area needed to support the load if constructed the same as other floors, or more likely 530 SF for attic framing, not too bad indeed. Thanks for the ref to heated attic site. Its uncannily similar to a project a local solar guy showed me, John Constanza. He used glass pickle jars because the client had worked in a pickle factory or something! Of course the diagramming of sun's angles is really oversimplified as usual but it gives the general idea. Swing seasons are tough, I can get a lot of unwanted solar gain in the afternoon in late August or September even with lots of shading. Dean Sherwin CPE Certified Professional Estimator LEED Accredited Professional CONSTRUCTION COST MANAGEMENT 3, Cherry Street PO Box 11 Media, PA 19063-0011 (610)892 8860 fax (610) 892 7862 costman at verizon.net
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