Jeremy Ballard is living in a relatively new home built with structural insulated panels (SIPs), and he’s already spotted something that’s keeping him up at night. The weather in Kentucky is turning hot and humid, and with the humidity has come condensation on corrugated metal panels installed on the interior of the roof.
“Our center ceiling beams are dripping wet throughout the day, causing small puddles on the floor,” Ballard writes in a post in the Q&A forum at GreenBuildingAdvisor. “The ceiling is hot to the touch at the very peak on either side of the center beam. I believe hot outside air is leaking in.”
As he starts a round of calls to his builder, the SIP manufacturer, and the manufacturer that provided the frame, Ballard looks for recommendations on how the problem can be corrected. Seams between SIPs are not taped, either on the inside or the outside, and they’re now inaccessible. Other possible clues: the unvented metal roofing is installed over furring strips and a layer of “double bubble,” a foil-faced product sold as insulation.
Another question faced by Ballard: Who’s responsible for making it right? Among the candidates are the general contractor for the house, the manufacturer of the SIPs, and possibly himself.
“I couldn’t sleep last night thinking how this cost our family over $32,000 for the SIPs and the first summer [they] are failing,” Ballard says.
That’s the topic for this Q&A Spotlight.
Yes, air leaks are the culprit
David Meiland has no doubt the problem is a leaky roof assembly. “As you allude to, the issue is probably air leakage and the solution is to seal the joints where air is leaking in,” he writes.
If the builder responds to Ballard’s requests for help,…
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