At the west end...(is) an original window frame, in place, though possibly not in its original place and almost intact. There it is, pinned into the oak studs, sill and jambs rebated in the solid oak, the head plain. The inside, toward the room, is beautifully moulded. At the eastern end...the mark of just such another frame remains in the vertical boarding.
On the lean-to side the rafters are new. They do not touch the old plate, but are blocked up on it by fragments of beams.
The builders of the ca. 1765 lean-to chose an economical solution to the problem of roofing a structure that had almost doubled in width...Rather than tear the old roof off completely, the carpenters removed only the rear slope. Next they cut the tops off the rafters on the north side, then lowered the whole frame-purlins, sheathing, and all-by chopping back the heel of each rafter, breaking the tenons, and easing the enitre frame backwards to the lower pitch. New, long rafters were joined to the sawed off ends of the old ones to cover the south slope of both house and lean-to in a single span.