WestMichBrewer
Well-Known Member
For anyone looking to build a SOF chiller, don't be put off by the high cost of high density foam. Just stay away from the big box stores like Home Depot, and you'll pay a significantly lower price and probably get a better product too. HD sells the blue R10 stuff for more than $70 per 4x8 sheet where I live. By comparison, concrete and siding companies in my area are selling R13 4x8s at about $50. Some offer 2x8 sheets as well, making it easier to transport if you don't have a truck.
4'x8'x1" sheets are ~$14 at Menard's.
I think the 1.5" thick were only ~$16.