Icicles: How We Stopped Them and the Heat Loss that Caused Them, Part 2


| 2/25/2015 10:18:00 AM


Tags: Adam Bearup, SIP panels, icicles, Michigan,

ice

Thank you for coming back for the conclusion of Icicles! In Part 1, I mentioned that I had found the source of the heat that was causing the massive ice buildup on this house in Michigan. I also presented three options to fix this problem. If you have not guessed yet, option three was the best fit for this project.

Not many people know about nail based panels, which are available through our structural insulated panel (SIP) supplier. Nail based panels are designed to be installed on the top of an existing roof deck and are available in a number of thicknesses. Because the house that we were fixing already had good insulation and ventilation, we chose a 5½-inch thick foam nail based panels to stop the heat loss through the existing roof deck.

panel 1

There was quite a difference in costs for the three different scenarios that I had come up with to stop the ice build up on the roof. When we sat down and went over the pricing, the path of least resistance and damage to the existing finishes inside the house was the deciding factor. With a nail based panel, the only labor cost we would have is installing the panels. There would be no need for a massive cleanup effort like there would be if we attacked this issue from the inside of the house. The cost of the nail based panels are about $2.65 per square foot which is more expensive than spray foam but required minimal effort versus what we would have to do to prep the attic area for spray foam. The SIP company wanted $450 to deliver the panels to the jobsite, but The Rev opted to go get the panels with his trailer to cut down on costs on this project. The panels are 4 feet by 8 feet, just like a sheet of plywood.

Remember, that the original goal was to put a metal roof on this house, so the nail based panels gave us a great setup for the new metal roof! It was a no brainer to us; all we had to do was figure out how we were going to do the work four stories above the ground.




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