11/16 Low E Argon filled glass with warm-edge spacer *
Full unit u-value = .35 (regular insulated glass also available)
5/8 or less insulated glass with inefficient aluminum spacer
heating and cooling costs, less likely to have condensation problems.
year glass warranty
are 10 years or less.
Longer lasting seals and glass.
Exterior clad with poly grafted coating *
primed or clad with aluminum.
better protection. Will not scratch or pit like aluminum.
Mortised, tenoned, and pinned corners
Many are lap-jointed which makes them less durable.
solid. More structural integrity.
Beveled side rails
matches jamb liner and cuts down on air infiltration. Easier tilting.
edge around glass
Better aesthetics with coped edge.
Narrow rails and stiles.
more traditional appearance.
gauge extruded vinyl clad frame *
Primed, painted or aluminum.
Better protection from scratches and exposure. Will not pit or flake.
piece integral nail fin *
Slide-on two piece unit.
Better seal around window, less air infiltration, easier installation.
block and tackle tilt in balances
Many use springs, and some do not allow the sash to tilt in.
Quieter operation. Longer lasting. Much easier to wash windows.
Removable sill stop for stool cap
Many require reworking side stops for stool application.
Traditional appearance. Not the "picture framed" look.
wide wood colonial profile comes standard
Many other styles available (Not Pictured)
are just square bars.
Traditional colonial replication.
7/8" or 1 1/4" simulated divided lite available
Authentic interior and exterior profiles, assorted lite patterns
do not offer.
most traditional look available with insulated glass.
* Clad window only (Prime window has 1/2" glass
with wood glazing bead or 11/16" glass with vinyl glazing bead)
One piece integral nail fin.
5/4 x 4 applied casing also available.
Standard brick mold casing
5/4 x 4 & 5/4 x 6 also available. **
11/16 low e argon filled glass
with warm edge spacer.
Tilt in window
makes for easy cleaning. **
Exterior frame clad with heavy gauge
Mortised, tenoned and pinned
corners provide superior strength. **
Wide bottom rails. **.
stop for stool cap. **
** Same features on Clad and Primed windows.
Clad or Prime Exterior
11/16 Clear Insulated
11/16 Low E / Argon
Prime Exterior Only
1/2 Clear Insulated
1/2 Low E / Argon
1/2 Low E / Krypton
ENERGY STAR compliant for northern and central regions
A product so good it is
Energy Star rated *
Mountain Window exceeds the current industry standard of measuring
thermal performance, called "resistance to thermal transfer". Why?
Because our windows are actually a source of energy! The US Department
of Energy has awarded Green Mountain Windows its ENERGY STAR
Certification because our windows are so energy efficient. In a single
day, our high tech glass can contribute up to 2 1/2 times more heat into
your home than it allows to escape. In fact, it is estimated that for
every Green Mountain Window installed in your home instead of regular
insulated glass, you will save about 12.5 gallons of oil each heating
season. In the summer, our insulated glass can reduce heat entry by
Designed for extreme New England climate
" Our house is less than 50 yards from the Atlantic Ocean and window
selection for our renovation was critical. Over the years, our Green Mountain
Windows have met all our expectations and more. Youve created a great product
that stands out above the rest for quality and value."
Brady Schofield-Newport, RI
Mountain Window product line was specifically designed to withstand the
weather extremes of New England. Our windows are manufactured in Vermont
and utilize the finest materials and technologies available in the
industry today. The Green Mountain Window has been tested by an
independent laboratory and found to be thermally superior to most
windows marketed in New England. Our windows will help lower heating and
cooling costs, eliminate moisture condensation, and protect furniture
and carpeting from damaging UV rays. Our windows give you the
convenience of a modern tilt-in sash with a traditional New England
Construction is the key to eliminating interior condensation
Mountain Window is constructed with low-emissivity, argon gas filled,
insulating glass, 11/16" thick on the clad unit -- one key to its
superior insulating qualities. Add to that a warm edge spacer system,
and you now have a thermal barrier which keeps the inner surface of your
window closer to the inside room temperature. The closer the inside
surface of the window is to room temperature, the warmer your home will
be. Condensation is also less likely to form. Add to this a design that
guards against air infiltration, and you will find your whole window
area warmer in the winter.
The Green Mountain Window is NFRC certified
"The fine craftsmanship and Yankee ingenuity Green Mountain
Window has demonstrated in their products has saved us hundreds of man-hours
over the use of competitive clad units. It takes a team to succeed in this
business, and it is a pleasure to have you as part of our team."
Stephen Desmaris, President
The Green Mountain Window has been tested by an independent laboratory
and has been NFRC Certified. This gives you the security of knowing you
are purchasing a tested, reliable product that surpasses most other
windows on the market in terms of thermal efficiency and air
infiltration -- the two most important qualities for a window in New
England. Our DP30 rating means that Green Mountain Windows will even
stand up to tough commercial applications.
* Products using 11/16" Low E / Argon or 1/2" Low E / Krypton
glass meet ENERGY STAR criteria for Northern and Central Regions.
Look for the ENERGY STAR label on qualified products - see table
on page 2.
Download our Classic Series
rough opening guide below