Energy Envelope System
Tell us what
R-value you need?
your County and find out the insulation requirements for your building
site. We can meet them!
R-16? R-19? R-23? More?
does it work?
We start with Northern
White Cedar, which naturally resists heat flow through its wood,
referred to as the "R-value." The higher the R-value number, the more
resistant the material is to letting heat transfer through. The
new Energy Envelope increases the log wall R-value in increments by
adding insulation panels inside the logs. The thicker the panel,
the more R-value, at very modest costs.
Envelope is constructed from the log wall exterior toward the interior.
A layer of foil-faced rigid insulation is applied to the interior of the
log wall. Then, an insulating 3/4" layer of sealed air space is created
by applying thin strips of strapping to the inside surface of the rigid
insulation. Then the interior tongue and groove cedar, shaped to either
a flat or round profile, is applied. The R-23 Energy Envelope has the
extra benefit of allowing for easy electrical wiring.
Superior Continuous Insulation
The Energy Envelope System
outperforms conventional framed construction with two-by-sixes and
fiberglass insulation, because it offers continuous insulation. A
conventionally constructed wall conducts heat in and out through the
two-by-sixes that become "thermal bridges" between the interior and
exterior of a house. The two-by-sixes have a much lower R-value than the
fiberglass insulation inserted into the spaces between the framing. With
the Energy Envelope System, the entire log wall is covered by rigid
insulation and thus provides an unbroken barrier in your exterior wall
Combine Energy Envelope
with high R-value, vented "double roofs," efficient Anderson Windows and
Therma-Tru Doors, and you'll be ahead of whatever energy curve ball gets
thrown your way.