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1-3/4" thick sash

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Overall jamb width is 4-9/16"

(basic box width is 4-9/16")

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Frame thickness is 3/4" at side jambs and head

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Sill thickness is 1-3/16", slope is 14°

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Constructed of pine, with pine interior stops and wood

mull casings on mulled units

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Energy efficient, insulating LoE

2

-270 glass

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Glazed to the interior with beveled wood glazing beads

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All exterior wood parts are treated

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.050" thick, 6063 extruded aluminum alloy frames are

press fit on to the wood frame exterior of all units

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Accessory grooves are integral to the extruded frames

for the easy addition of accessories

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Frame corners are mitered or profile cut, with internal

corner and end keys screwed into the joints and

injected with sealant

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.050" thick, 6063 extruded aluminum alloy is kerf

mount, press fit and mechanically fastened onto wood

sash with coped ends

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70% PVDF fluoropolymer finish on frame and sash

exteriors

(meets performance requirements of AAMA 2605)

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Wood interior head parting stop

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Fully weatherstripped for a tight seal

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Clay-colored, heavy duty sash lock with a dual

positioning lever allows sash to be unlocked, operated

and tilted in from one location

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Spring-loaded block-and-tackle mechanical balances

to carry the sash weight

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Concealed PVC jambliners with kerf mount

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Wood wrapped jambliner closure on the interior

(unless

interior is prefinished white or primed, then jambliner will be paintable white

PVC)

and extruded aluminum jambliner closure on the

exterior hides PVC jambliners

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Heavy vinyl nailing fins with head drip caps*

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Pine-veneered head and seat boards; unique narrow

mullions and cable support system on bay units

Sterling Double Hung Standard Features

NOTE: All measurements are nominal.

* Standard only on units without brickmould.

Sash lock in Clay

(standard)

Square style sash lift

handle in Satin Nickel

Traditional style sash lift

handle in Matte Black

Sterling double hungs feature a pick resistant cam lock with a concealed locking mechanism and tilt latches installed into

an interlock channel. Optional sash lift handles are available for easy operation. All double hung hardware is available in

Clay

(standard)

, White, Beige, Brass, Antique Brass, Satin Nickel, Antique Nickel, Rustic Umber, Oil Rubbed*, and Matte Black

finishes.

Hardware

70

Kolbe Ultra Series

Patents

7,296,381 | 7,448,164 | 8,196,355 | 8,429,856

Sterling

Double Hungs

Sterling double hungs are made to blend seamlessly with the grandest décor. A patented interior wood cover conceals the

jambliner, while giving the windows a rich, full-wood appearance. The lock system boosts performance to a level not often

reached by double hung windows.

A wood wrapped jambliner closure on the interior (shown)

and a primed, extruded aluminum jambliner closure on

the exterior hide the PVC jambliners.

Heavy duty sash lock with dual positioning

lever allows sash to be unlocked,

operated, and tilted in from one location.

NOTE: *The Oil-Rubbed finish is a living finish, which means that it will change appearance over time with use.