Straw Bale Roof Insulation

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How To Become More Self Sufficient Natural Building Straw Bale Construction Roof Insulation

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Straw Bales As Ceiling Insulation Straw Bale House Little Green House Earthship

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Isolation Toiture En Paille Dehors Natural Building Straw Bale Construction Straw Bale House

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Check It Out Making The Floor With Hemp Straw Insulation Smells Nice Eco House Design Hemp Insulation Earthship Home

30 Mai 2009 Natural Building Straw Bale House Passive House Design

30 Mai 2009 Natural Building Straw Bale House Passive House Design

30 Mai 2009 Natural Building Straw Bale House Passive House Design

Are there any very long spans.

Straw bale roof insulation.

Personally i stick with light weight insulation materials in the roof and leave the bales for the walls. The density of the straw how long the straw itself is as well as the moisture content how well the gaps are filled between bales and other things like how it s stacked. This implies that bales r factors would be considerably higher. To improve insulation because i love everything about straw bale houses i was wondering if we could retrofit straw bales by removing the weatherboards and the internal plasterboard leaving just the wooden frame and windows then put the straw bales in like you would if building a wood framed straw bale house from scratch.

Owen geiger yes you can use straw bales as roof insulation. If you re wondering what the r value of strawbale construction is then it depends on a few things. On end or flat. Strawbale insulation is tightly packed and 18 thick.

Make sure it s in good condition no rot termite damage cracked boards etc. In a straw bale house these bales form the walls insulation and framework all in one with some additional support from wooden beams wherever they re necessary. However if you want to use bales you can use an assembly that looks something like this. First you need to check the strength of your roof system.

The straw clay material is a sort of hybrid between pure insulation straw baled or not and pure mass cob for ex. What you want is closer to the insulative side. This construction method is commonly used in natural building or brown construction projects. The typical straw bale is bound twice and is approximately 900mm long 350mm high and 450mm deep.

For straw bale this can pose a problem in keeping the walls free from direct moisture. A bale is 360mm deep. 2 6 tongue and groove planking over beams girders to be engineered per the loads and spans. Bales of r40 with ceiling airspace anticon then roof would rate somewhat above r40 and the standard r38 andrew talks about.

Without an exterior stud wall most straw bale walls have an r value of r 33 or less. A good time to use this roof is obviously when the budget is tight or if you want a larger exposed side of the structure as in a greenhouse or in cooler climates. It can be made into different grades closer to one extreme or the other.

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Straw Walls Straw Bale House Natural Building

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