[quote="Canoe"]The tried & true so far for hexayurts is the 6". There's a number of years and locations within BRC where you'd likely getaway with 4".
Your call.[/quote]
Well, first off, I’ve come across people saying ‘yeah, use 3” – it’s no problem, it’s just super-hard to assemble on the playa.’ Sooo, was just getting more of opinions, I suppose.
Help me define a critical load case for the structure here, whydontcha, if we’re going to do engineer-talk?
That's the biggest issue - the adhesion limits are just simple math.
Adhesion is given as 91lbs per inch… and as far as I know (kuz strangely enough, I’ve some tape experience) it’s not square inch that they’re talking about, but linear inch. So, that’s ~5.5lb/inch – so for a 4’ long joint (the smallest joint length we’ve got here) – that’s about 265lbs. Oh, and I guess we should account for the fact that we’re taped on both sides. Soooo, 500lbs between the short connections and 1000lbs between wall and roof long ones. Seeeeeems pretty beefy to me.
• What's the percentage reduction in adhesion area?
- Some. 50% So what?
Who’s saying that 6” is the minimum? Most likely it was a guy going… ‘What’s the biggest tape width I can find!?!’
• How much less force will 4" tape hold?
- Since the tape's glue-area isn’t loaded equally – the further away from the end of board, the less load is on the glue in that section – a decrease of that not highly loaded area will reduce force of joint much less than you think. Also, as mentioned… they measure in linear inches…can look it up in detail, if need be.
• At what mph will the wind rip your hexayurt apart?
- Indeed. Good question. This is by a long shot not a back-of-the-envelope calculation.
