High Performance Construction - Insulation
Heat flows naturally from a warmer to a cooler space. In winter, the heat moves
directly from all heated living spaces to the outdoors and to adjacent unheated
attics, garages, and basements. During the summer, heat moves from outdoors
to the house interior. To maintain comfort, the heat lost in winter must be
replaced by your heating system and the heat gained in summer must be removed
by your air conditioner.
ceilings, walls, and floors decreases the heating or cooling needed by providing
an effective resistance to the flow of heat. Inadequate insulation and air leakage
are leading causes of energy waste in most homes. Insulation saves money and
makes your house more comfortable by helping to maintain a uniform temperature
throughout the house.
Insulation is rated in terms of thermal resistance, called R-value, which indicates
the resistance to heat flow. The higher the R-value, the greater the insulating
effectiveness. The R-value of thermal insulation depends on the type of material,
its thickness, and its density.
Quail Homes' Earth Advantage Platinum Certified homes, insulate with R-24 blown-in
fiberglass at the exterior walls, R-38 at the subfloor, and R-49 at the attic.
To achieve R-24 at the exterior walls, we use an advanced framing system with
staggered studs to create a thermal break. This reduced thermal bridging caused
by the lack of thermal break in framing lumber to reduce heat lost. Raised heel
trusses to allow Quail Homes to increase the attic insulation to R-49. Download a more readable "Quail High Performance - Insulation drawing" above and hear what Jeff Steffl of Probuid has to say about raised heel roof truss to right.
What is the "R" value of your home? What
is the "R" value of the houses that other builders are building?
Besides adding insulation to increase the "R" value of the homes
we build, Quail Homes applies Owens Corning Energy Complete Sealing System to
prevent the air leakage in the home. To read about how Quail homes stop air
infiltration, please go to "Air Infiltration".