Posted 01-20-2004 at 06:00:32
[Reply] [No Email]
"Have you posted a picture of that dome you built?" thought i had one online but can't find it and my new hard drive has nuthin, so back to the drawing board i guess.
"What did you use for a frame?" i used norway 2x6s throughout. the dome's not geodeisc, in the all the triangles aren't the same (it took 5 different triangles) and this way it stands flat on the ground. to draw it in profile, i used the upper 5/8 of a 20-foot circle. then divided the outer ring in 12 sections and came up to the top with a 6-legged "spider". this started the framing and there's 2 sets of triangles up to another horizontal ring at 10 feet. (about 13 feet tall inside) maybe didn't have to, but i strapped the 10-foot ring with a 1/2 cable and turnbuckle. (visually, as long as all the points would touch the inside of an inflated ball, domes look right.) i used tons of trig on it, so it looks good and it's nice and snug. if i was to build another one, i'd weld up some metal hubs instead of makng all those nasty compound miter cuts.
so a wall section looking inward would have asphalt shingles, then 15-lb felt, then the framing and insulation, then 8-mil plastic, then tongue & groove siding on the inside.
the entry is sorta a-frame and the bedroom is goofy-shaped but the joints match the triangle edges. it took a ton of time but it's a cute guest room.