TJ Alexander's Blog (1)

So many homes have fiberglass insulation that is poorly installed in New Hampshire and elsewhere

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during Blower Door Testing.  

Part of the problem is air sealing and the other part of the problem is poorly installed fiberglass insulation.

This is not a rant against fiberglass insulation (I am a fan of both Rock Wool/Roxul and dense packed cellulose) for retrofit projects.  Fiberglass batt or blown insulation can perform fine, if it is…

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Added by TJ Alexander on June 12, 2014 at 4:31pm — No Comments

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How would you insulate this roof?

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Brad Cook replied to David Butler's discussion How would you insulate this roof?
"I missed where the suggestion for rails came in. The plywood would not need any rails. 4+ inches is…"
52 minutes ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"I'm a little confused about the necessity and purpose of using support rails if working on…"
1 hour ago
David Butler replied to David Butler's discussion How would you insulate this roof?
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1 hour ago
David Butler replied to David Butler's discussion How would you insulate this roof?
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Brad Cook replied to David Butler's discussion How would you insulate this roof?
"It kind of depends on the PIC. Not all insulation is made the same. Here in VT (and all of New…"
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David Butler replied to David Butler's discussion How would you insulate this roof?
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Brad Cook replied to David Butler's discussion How would you insulate this roof?
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