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Any ideas what could be causing these large cold spots on thermal imaging? The picture shows the edge of an upstairs room. In the attic above, there is visibly plenty of insulation in these spots. There is batt insulation with blown in fiberglass on top of it. The baffles are Styrofoam and go from edge […]
Hi, We have a 200 year old house in upstate new york that is 1400 sq ft between 2 floors, with a simple gable roof. We are redoing the roof, and have gotten quotes from two companies. We are thinking through the pros and cons of insulating at the attic plane vs insulating at the […]
A friend has a single-story house in climate zone 7 with an older, non-condensing natural gas boiler. The home is heated with hydronic baseboards on a single zone. There is a single 1-inch main loop running around the crawlspace that serves roughly eight baseboard units. Each baseboard branches off the main using venturi (diverter) tees—mostly […]
Does anybody know how to determine the F-factor of a slab-on-grade with insulation on TOP? I’m trying to find/calculate the F-factor of the assembly shown in the attached image (with and without perimeter insulation). The sources for F-factors that I’m aware of don’t include values for this condition — they all assume that the insulation […]
Hi. I’m renovating a bathroom in Florida and I’m trying to make sure I’m not building a mold trap which is a common case down here. One wall of the tub area is an exterior concrete wall. The old alcove tub sat right up against it. Above the tub, the wall is furred out, and […]