Pump House Roof

The Roof - 2012 ~ by Griz (aka Steve Stovner) ~
When I built my 30 x 60 shop in 1995-97, I purchased 2300 square feet of Champion steel roofing. I got it at a great price because it was production overages, abandoned orders, etc. All the same color but it came in various lengths. Half was standard corrugated and the other half was Hi-Rib. Even though I sealed all the over-laps and screw heads with Henry 209 Elastomastic Roof Patch, the corragated side of the shop leaked. The next summer I replaced the corragated roofing with Hi-Rib. But later found the leak was not the roofing, instead it was wind blown water that was getting up under the narrow ridge cap and running down the plastic condensation barrier till it found a screw hole for entry. Extending the ridge cap on both sides with 12" flashing fixed the "leak". Most of the corragated roofing was used on the "barn" I built in 2009, without any leaks.

It took almost all the remaining corrugated sheets I had to cover the new pump house.

Between the roof frame and the steel roofing is a continous sheet of 6mil clear plastic, to catch the condensation that forms on the underside of steel roofing in certain weather conditions. The plastic is "glued" to the top of the perlins with 35 year latex caulk. That way every roof screw will pass though a layer of caulk (reducing any chance of condensation water leaking in on my insulation).