[Equest-users] slab on grade makes high U floors?

Shaun Martin smartin at shaunmartinconsulting.com
Fri Feb 3 12:25:29 PST 2012


This might help, from Ashrae 2005 p 29.13
 

 
There are equations in the chapter to allow these calculations.
 
 
Shaun Martin LEED AP
Principal
Shaun Martin Consulting
2060 Pine Street, Vancouver BC V6J 4P8
604-789-1095
smartin at shaunmartinconsulting.com
member CAGBC, ASHRAE

 

  _____  

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of norman
wheatley
Sent: Friday, February 03, 2012 12:07 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] slab on grade makes high U floors?


Hi,

If you go for the standard 0.73 F-Factor slab on grade floor and then check
the LV-E report all your floors on the ground level are below ground and
have very low U-values.

Is this correct behaviour? It seems that the slab is essentially R-33

thanks
Norm

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