Not a true truss the construction is similar to corbeled masonry see corbel in that each set of beams steps upward and inward by resting on the ones below by means of curved braces and struts. The hammer beam is merely the lengthening and thickening of the sole piece at the foot of the trussed rafter the principal rafter being strutted and the weight of llic roof carried lower down the wall by means of a curved brace tenoned into the hammer beam and wall piece. It uses reinforced posts curving slightly outward from the wall to support the weight.
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