Straw Roof Insulation

The quality of insulation that a straw bale wall provides depends on a number of factors including the way the bales are stacked the way the bales mesh with the roof s insulation the type of post and beam structure or if loadbearing the type of top plate the type of plaster used the quality of the plaster work and the design of the house.

Straw roof insulation.

Straw bale roof i simply must ask. Homes insulated with straw bale can have insulation values of r 30 to r 35 or more. The reason the fire s still burning is the fire got into the straw. There s multiple layers of straw through the roof because they had to reach a very high insulation rating and acoustic rating.

By bailing the straw a new life is given to the material. Straw bale construction is a building method that uses bales of straw commonly wheat rice rye and oats straw as structural elements building insulation or both this construction method is commonly used in natural building or brown construction projects. The amount of time effort cost and embodied energy in such a task seems to me to heavily outweigh the benefits. The r value of strawbale varies between studies but is mostly consistent.

Why use bales as a roof insulation. The values fall between r 2 38 p in parallel with the straw and r 3 05 perpendicular to the straw. What you want is closer to the insulative side. Research has shown that straw bale construction is a sustainable method for building from the standpoint of both materials and energy.

Straw insulation for the home. When it comes to home insulation and energy efficiency a bale of straw may seem like something only the amish do but in fact straw bale insulation has turned out to be an excellent green building element. The farmer makes some money by selling the bales and the homebuilder gains an excellent insulation and building material. Strawbale insulation has been studied and tested in some of the coldest places in the world.

It can be made into different grades closer to one extreme or the other. Firstly you would not use a full bale in the roof and secondly i have previously seen a completed straw bale roof insulation. The straw clay material is a sort of hybrid between pure insulation straw baled or not and pure mass cob for ex. It would provide a better form of insulation than bats as they are completely sealed and you only have to look at the results of bush fires.

Granted it was smaller bale sections and they had rough rendering covering them. The thicker the bale the better the r value.