Bob Blanchette's Discussions (525)

Discussions Replied To (27) Replies Latest Activity

".57 pascals is a low pressure, not enough to overcome the resistance of the filter a…"

Bob Blanchette replied Jan 22, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"About 250 pascals in 1" of water column. HVAC filter operation at a typical 0.1" @ 1…"

Bob Blanchette replied Jan 22, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"We're talking about the surface same area as two 20x20 HVAC filters. 360CFM through…"

Bob Blanchette replied Jan 22, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"The 12" aluminum externally braced whirlybirds go for about $50 each, not unreasonab…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"Fair enough. Air will exit ridge vents, but at an insignificant rate. There is simpl…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"According to your formula, how hot does it have to be in a standard 8' tall attic in…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"If you must have the ridge vents installed, take a CLOSE look on how it's constructe…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"If homeowners aren't willing to have whirlybirds installed, large "turtle vents" can…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"I don't think powered fans make sense for Northern climates. Even in southern climat…"

Bob Blanchette replied Jan 5, 2013 to Ridge Vent NFA

15 Jan 5, 2013
Reply by Bob Blanchette

"The tiny pressures aren't enough for the ridge venting to work, it simply doesn't. T…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

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Discussion Forum

Moisture/Mold on rim joist;

Started by John Shillito. Last reply by John Nicholas Jan 10. 6 Replies

Radon - Passive Systems

Started by Sean Lintow Sr. Last reply by Bryan Gabriel Jan 5. 5 Replies

Vented Soffit! DO or DON'T?

Started by Daniel Baur-McGuire. Last reply by Daniel Baur-McGuire Nov 15, 2016. 13 Replies

Water Saver or Gimmick?

Started by Sean Lintow Sr. Last reply by Bob Blanchette Oct 23, 2016. 18 Replies

Duct Testing - is a change in order?

Started by Sean Lintow Sr. Last reply by Sean Lintow Sr Aug 6, 2015. 20 Replies

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HVAC Designer with Manual J and D Experience

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