I am thinking of building a foldup perment darkhouse along the lines of the n-ice shack and i am trying to figure out what to use for a roof , i am thinking of pvc tarp but i dont know if it would block light or stand up to the cold, i was also thinking of using vinal and sowing one but that would be expensive [have some white that was for a bed cover cost 70$ 10 years ago] i was also thinking of using canvis any ideas or segustions would be apprecieated.
also how many people here use dark houses, and for thoes who never used one you have to try it.
