Chris Laumer-Giddens's Blog Posts Tagged 'air' (5)

Raising the BARrier in North Carolina Mountain Home, Air Tight Ceiling

Raising the BARrier in North Carolina Mountain Home, Making it Super Air Tight!

The AIR Barrier at the ceiling plane, that is....

At LG Squared, we have experimented with many ways to design and build a roof assembly for a home. Without question, we have found the ventilated attic to be THE most effective.…

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Added by Chris Laumer-Giddens on September 16, 2016 at 7:30am — 5 Comments

Sparky Doubled the Air Leakage in this Home!

Sparky Doubled the Air Leakage in this Home

This is the home.

high-performance-bunglaow

This is the hole that Sparky (electrician) "innocently" made to feed a wire to the light on the front porch of the High Performance Bungalow. I discovered it a day or two after our home performance diagnostics team, Carl Seville and Abe Kruger, of SK…

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Added by Chris Laumer-Giddens on November 24, 2015 at 9:08am — 4 Comments

Mini-Split Heat Pumps are Quirky, Especially their Capacity

Mini-Split Heat Pumps are Quirky and Still Effective

The name "mini-splits" generally refers to heat pump systems with one outdoor unit and one or several smaller capacity air handlers. The efficiency of their operation comes via the inverter compressor and variable refrigerant…

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Added by Chris Laumer-Giddens on September 17, 2014 at 4:32pm — 4 Comments

0.72 ach50 Before Drywall - This Home is already 90% Tighter than Energy Code

Before drywall was installed, I tested the infiltration (air leakage) at the Proud Green Home (PGH) at Serenbe,…

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Added by Chris Laumer-Giddens on April 15, 2013 at 10:30am — 1 Comment

Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 7 hours ago. 34 Replies

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Dirty solar panels

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Latest Activity

David Butler replied to David Butler's discussion How would you insulate this roof?
"Sean Lintow proposed rails and clips (re: first comment in this discussion), but in the context of…"
7 hours ago
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…"
11 hours 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…"
11 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"If you insulate master bedroom and family room from below, you definitely need more R-value than…"
12 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Brad, I was only talking about using EPS between the ridges, if necessary, to conform to bolts.…"
12 hours ago
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…"
12 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Filling those shallow valleys with rigid foam not only prevents primary foam panels from…"
12 hours ago
Brad Cook replied to David Butler's discussion How would you insulate this roof?
"Bill, you just posted a number of responses in different areas of the thread. I will try to respond…"
16 hours ago

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