SB: Warmer doors - manufacturer's data

[Derek Roff <derek@unm.edu>]

At my local home center, I was just about to start dissecting a door 
when I noticed a sticker with U-value information.  This was a 
Stanley steel-clad door.  The sticker contained a table of five 
different models in three different classes, each with four 
variations.  The best U-value listed was 0.14, which converts to an 
R-value of 7.1 (in the units favored by the backward and confusing 
system used in the USA).  The lowest rated model was under R-4.

derelict rough

Derek Roff
Language Learning Center, Ortega Hall Rm 129, University of New Mexico
Albuquerque, NM 87131  505/277-7368, fax 505/277-3885
Internet: derek@unm.edu


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