Читать книгу More Straw Bale Building - Peter Mack - Страница 86

There is no doubt that a properly installed vapor barrier is an effective tool in preventing moisture penetration through your walls. Though moisture migration has not been shown to be a problem in straw bale walls, a builder might choose — or be forced by local building officials — to spend the extra money and time and forego the structural strength and environmental bonuses of building a straw wall without a vapor barrier. In this case, you might want to use vapor-retardant paint as your barrier, rather than a layer of plastic behind the plaster. Applied to the interior plaster of your walls, the paint can achieve a high degree of protection against moisture migration while avoiding the difficulties of working with a vapor barrier over the straw. You might also decide to apply different vapor retarding strategies in different areas of your home. Bathrooms and kitchens are especially prone to high humidity and can be sealed with more vigor than other areas.