1. The roof construction is a crown post & collar purlin . 2. The roof is covered by cedar shakes, with extended log purlin ends. 3. The rafters rise from end plates to a purlin where the roof pitch changes. 4. The staggered butt-purlin construction included integral dormer windows on the west slope. 5. "AISI Design Guide for Cold-Formed Steel Purlin Roof Framing Systems :" 6. Five purlin -plate runs across the top of the bents, also mortised and braced. 7. It is of six quoins, and was re-roofed in 1779 with a double purlin roof. 8. A vertical free-standing pole supports that portion of the ridge pole extending beyond the ridge purlin . 9. Below the tie beams another set of longitudinal braces links the bents, parallel to the purlin -plates. 10. The roof was sheathed with cedar shingles and had exposed log purlin structure on the interior, which is a single room.
