5 gallons is 4.75 gallons in 2011. I was surprised to find that out. That way with ALL the coatings, not just the elastomeric white. (Didn't check to see what a 5 gallon paint bucket holds these days. Need to do that next visit.)
The Henry's white elastomeric coating doesn't spread very far. I've used it before. It's nice, but doesn't spread at all like the typical "aluminum" roof sealing tar you brush on with a roof-coating broom. At least, didn't for me. Best, ken winston caine ----- Original Message ----- From: "KK" <[email protected]> To: "hexayurt" <[email protected]> Sent: Wednesday, August 03, 2011 3:22 PM Subject: [hexayurt] Re: For Vinay: -- Questions about foam-board choices between XPS and EPS Ken, if you are going to encapsulate a building the white foam should be just fine. Just make sure the density is what you want. They grade it just like pink/blue board. It's all styrene based stuff, just different "toughness". But HD always carries the worst and cheapest grade on the shelves. To get high density foam boards of *any* type, you have to go to a specialist supplier $$$ On Aug 3, 2:11 pm, "Vinay Gupta (Hexayurt Shelter Project)" <[email protected]> wrote: > Most useful thank you! No problem! I don't believe Dow is lying about Polyiso outgassing (?) We would have to see testing of any of these foam boards really. I do believe pink/blue polystyrene may be safe, just not if you hot wire cut. I'm glad I know this now. They did studies showing how white styrofoam cups and plates release styrene. I can see how this works. It's not outgassing (unless you burn them). The mechanical action of liquids and scraping a fork along styrofoam plates would mean you are ingesting bits of styrene. It's nasty stuff. But fairly inert if it's just foam boards in a wall. Though, for my middle project, I may encapsulate the pink/blue with white elastomeric roof coating on both sides. That might be a viable safe route to go down. Elastomeric does not burn. And is super common at HD. $115 per 5 gallons for Henry "Enviro White" (better longer lasting) http://bit.ly/nsraMM You could tape a hexayurt and coat it with this. It would glue/seal the tape down and provide UV protection for tape. Plus the overall waterproofing aspect. This assumes you are going to leave the hexayurt up "forever". My big project will be a skeleton frame OSG with blown cellulose inside. There will be no foam board used. Will do that one by next March. -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/hexayurt?hl=en. -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/hexayurt?hl=en.
