Construction site curiosity
March 5, 2008 11:44 AM Subscribe
What's the purpose of painting concrete/cement block black and what are those flaps above the windows for?
posted by nnk to Grab Bag (11 answers total)
I pass by the building site for an addition to a large, multi-storied school. It looks like eventually the building will have a brick exterior to match the rest of the school. Right now, the building is concrete block with no windows. At some point, flaps (tyvek?) were added above the window frames and the concrete/cement block was painted black. Why?