If my math is right, on an H18 design, I would have 118.6 square feet of foam-to-foam edges to attach (with my 4" thick polyiso). That would take 5 gallons of epoxy, it looks like. And that is way out of my budget.
So .... think I am going to run another test with asphalt emulsion. Last time I tested it was with small pieces of foam in 2011. They grabbed together beautifully and would not come apart and I saw no deterioration of the foam over a few weeks. Think I tossed the test pieces after about a year. They firmly held together through freeze and desert summer heat. That may be what I go with for this experimental housing project of mine. Really need to hold the costs down. Have about 4 gallons of asphalt emulsion on hand and think that in 2017 it is selling for somewhere around $40 per bucket (is that 4.5 gallons now) at home improvement centers. So it is certainly affordable. Need to have this figured out within about a week when I expect to be putting together the roof and then rubber coating it. Have to get the roof coating done before about Sept. 1 when the seasons change here in northern New Mexico (usually within a week of Sept. 1 night temps drop 20 or more degrees). The roof coating has to be applied while nighttime temps are 60 or above. So I'm pressed for time to get that part of the project assembled and finished. Am open to other suggestions for an adhesive, but I really don't want to spend more than about $100 to cover the 119 square feet. -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To unsubscribe from this group and stop receiving emails from it, send an email to hexayurt+unsubscr...@googlegroups.com. To post to this group, send email to hexayurt@googlegroups.com. Visit this group at https://groups.google.com/group/hexayurt. For more options, visit https://groups.google.com/d/optout.
