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A roof made out of natural, sustainable reeds or prairie grasses that is installed in layers.
We harvest materials in the United States and source them from Europe, Africa and Asia.
Thatch is suitable for snowy climates if the roof pitch is at least 12/12 (45 degrees), preferably greater.
Water reeds are naturally water repellent and direct water from the ridge to the eaves. However, a waterproof membrane often is installed beneath the reeds provides additional protection. Thatch roofs installed over open framing tend to breathe better and dry out faster.
A thatch roof should last about 20 years depending on conditions.
In the United States, thatch roofing typically is installed on outbuildings. However, it usually can be installed wherever cedar shake roofing is allowed.
Thatch may be installed over exposed timbers and battens or continuous roof sheathing panels. Sheathing panels may be completely waterproofed with self-sealing ice and water membrane.
William prefers to install traditional Irish/English thatch with a technique he learned in Holland. Each course or row of thatch is secured with horizontal steel rods fastened to the roof deck with stainless steel wire and screws. The water reed is secured at the top by decorative ridge that’s reinforced with hardwood spars.