Dark-coloured roof..?
my client wants her standing seam roof to be dark brown. will this, at least partly, sabotage my building’s energy efficiency? or is it a non-factor…
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Erik,
If you build a house with a good thermal envelope -- with at least the code-minimum insulation (more is better) and attention to airtightness -- and if you follow energy experts' advice to keep all ductwork and HVAC equipment inside the home's thermal envelope, then roof color is irrelevant.
Most metal roof manufacturers have coatings that allow those roofs to be energy efficient; and if you ventilate the roof installation, even better.
Maybe not her specific structure, but she will be doing her part to keep some of the sun's warmth around a little longer in her neighborhood.
All a matter of perspective, I guess.
P.S. Kudos for not choosing an asphalt shingle roof, though.
"Advice can depend on location. Please specify in your question."
Erik you could add your location to your last name...