Mike Turner wrote:I've built a number of cattle panel-tarp shelters, both mobile and those fixed to field fences, the largest being a 11 foot wide, 22 foot long, 12 foot high structure I can store 15 round hay bales in. Around here, a blue tarp lasts less than 6 months and a silver tarp less that a year. A way to greatly increase the longevity of your tarps is to wait until the tarp is approaching the end of its life when it is covered with the little square cracks in its surface, then coat it with the elastomeric 7 or 10 year white roof coating they sell at Lowes. I have a grey tarp covering my chicken coop that has been in place for 10 years now that I just now recoated when the original coating was starting to wear off.
I got this tall by not having enough crisco in my diet as a kid. This ad looks like it had plenty of shortening:
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