Eco House - ecologically and economically. . .

07.12.2010 00:04
Articles about real estate | Eco House - ecologically and economically. . . Eco House is a shelter, an appropriate "sustainable development" of civilization, which are practically not used non-renewable sources of energy and matter, on the one hand, it does not harm nature and human health, on the other, without which no future no country, no one people.

"Eco House", which we develop, will have a low cost, and during its construction using only local available to eco-friendly natural materials and energy-efficient construction technology.

Related article: In the Netherlands, will build the most environmentally friendly building

House of straw blocks is from 3000-3500 grn.m2 turnkey.

Why cheap?

Because the technology supplied to us from the U.S., Sweden and Germany are cheap, available and use the cheapest natural materials - straw pressed, or a mixture glinosolomennuyu mixture. "Well, again, by myself, and we - that thought ..." - pronounce himself and the reader will be wrong. The technology does not allow the use of adobe (80% clay, 10% straw and 10% organic), and used straw soaked clay solution (90% - straw and 10% clay). This "wet" technique generalizes four centuries the German experience "timbered" (frame) construction in climatic conditions similar to Belarus. Saman is nearly four times heavier, is not a heat insulator, and in conditions of Belarus is unacceptable - we have too humid.

The essence of technology: it is to use compressed straw blocks (after the baler from the field) as the main structural wall material followed by plastering that is, blocks can be stacked on a solution or be used as a self-supporting filler frame walls (dry technology "sewed mats" ).

It is recalled that the U.S. construction standards in many aspects of our tougher. and this technology is fully certified in the U.S.. For example, fire-resistant, it fully meets the requirements, and thermal conductivity - 8 times better. The outer and inner walls of such houses does not differ from normal in the U.S.. The wall of the house at a thickness of 60 cm has a thermal resistance of at least 10. There are such home for 100 years or more. For example, now in the U.S. people live in houses made of pressed straw, built in the last century.

And what about fire?
According to international standards DIN 4102 and DIN 18951 (21/51) glinosolomennye mixtures are non-combustible materials up to 5% clay content, provided that the mineral binder (clay) is uniformly distributed over the volume. This is easily explained: clay contain large amounts of potassium compounds as flame retardants. By international standards plastered walls, built by «straw-bale" technology can be classified as F45, ie, fire resistance of at least 45 minutes. Straw blocks laid on cement mortar, followed by plastering, have a higher class, up to the F120.

From communications Ecohouse only need roads and electricity (if can not afford expensive solar panels with elektroakkumuliruyuschimi systems). Sewage, of course, also needed, but not such as we have. We, firstly, very expensive, and secondly, does not solve the problem of disposal of household sewage (for example, the problem of sewage sludge), and only transfers it from one location to another, and most importantly - it is not a system of locally closed cycle. When an individual building is like a "heat pipeline in reverse", and the harm it inflicts no less than our notorious heating. However, the U.S. Department of Health has long been certified and authorized the use of even in the cities is very cheap local biological system of household sewage disposal, working on a "closed loop" and not create problems either in winter (to -50 ° C) or summer (up to +50 ° C), allowing to enjoy all the benefits of civilization under two conditions: the toilet can not wash away the concentrated poisons and throw non-biodegradable items: plastic, some types of paper, etc. Area bioochistnyh stores - about 200 m 2 and it looks like an ordinary orchard and garden, the estimated time of operation for a family of 8 persons - about 100 years, with the yield on the two acres unusually high. You can use a specially designed compost toilets, developed in Sweden and the United States, and utilize compost as cheap organic fertilizer.

Heating (and cooling) of the Green Buildings typically contains primary and secondary systems in addition to passive solar, which we hardly used. Main usually consists of a solar heat collector and water tank, storage heating on a daily and seasonal cycles. Designs can be different: in Sweden and Norway prefer solid batteries under the house, in the U.S. and Germany - liquid inside the house (200 m 2 of floor space - about 15 tons of water). Typically, such systems are expensive, but they can be made very cheap by using local materials and components. For example, the heat collector on the roof of the Green Buildings Design BO MAE only costs $ 50 kW of installed capacity and is not afraid of freezing. Is mandatory system with heat recovery ventilation.
Auxiliary heating system is usually a fireplace or a little slow-burning oven. ISOMAX firm uses as an auxiliary or "emergency" system of electric heating floor using night electricity output of 2 W / m 2 of floor space.
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