Straw Bale Roof Construction

For straw bale this can pose a problem in keeping the walls free from direct moisture.

Straw bale roof construction. It is spreading fast like a wildfire to every corner of the earth. Properly constructed straw bale homes include a high stem wall roof with large overhanging eaves and interior and exterior plaster coats to reduce moisture problems. In wet climates with blowing rain straw bale structures may become damp and may never dry out. The earliest mobile homes had r 8 or less.

Additionally the cost savings over time due to a straw bale home s energy efficiency will make up for the extra cost. 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. However it is possible to complete some or all of the work yourself making it cheaper. One big advantage of straw bale over conventional wood frame construction is that a straw panel will be able to dry to either side compared to most homes that include an impermeable barrier of polyethylene that prevents drying to the interior during our hot humid summer months which can cause condensation and hence excessive vapor mold in the house walls.

About andrew morrison andrew has a passion for straw bale construction that is matched only by his desire to teach his knowledge to others. Straw bales have good insulation properties and keep the building warm in winter and cool in summer with r values between 40 and 60 when built correctly. Straw bale construction is a sustainable construction technique with straw as a renewable material that is readily available. Depending on the sweat equity of the builder and the home s design and amenities straw homes can run from 20 to 75 a square foot.

A good straw bale home is significantly warmer than conventional building methods because a well packed bale is rated at r30 r35 minimum or considerably more. Building your straw bale home is a how to book for people interested in straw bale building. However these precautions sometimes fail. After years of building he has moved his practice entirely to consulting and teaching.

He has a wealth of experience in designing and building conventional tiny and straw bale homes. Straw bale building has seen a renaissance in recent years. 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. Straw bale construction can also reduce building costs.

This construction method is commonly used in natural building or brown construction projects.