A deep 3 ¼″ frame with multi-chambered extrusion traps air pockets for insulation. Paired with premium Black “S”-Class SuperSpacer® and 7/8″ Low-E/Argon glass, it reaches ENERGY STAR® Prairie Zone targets with room to spare.
Each hidden chamber works like a built-in storm window, slowing heat transfer when the mercury free-falls to –25 °C, yet preventing south-facing rooms from overheating under July’s high-altitude sun. The extra internal walls stiffen the long horizontal members typical of slider designs, so the frame resists bowing when Chinook winds slam into it at 100 km/h. You gain higher R-values, quieter interiors, and a frame that won’t sag or leak ten winters from now.
Nylon rollers ride on brass ball-bearing axles, delivering a quiet, fingertip glide even after Calgary’s freeze-thaw cycles. A double-walled, contoured pull rail adds strength and grip.
Brass resists the calcium-chloride road salts that blow across neighbourhoods all winter, so the bearings won’t seize or squeal come spring. The self-lubricating nylon wheels shrug off prairie dust, maintaining smooth travel without annual sprays of silicone. Because the pull rail is reinforced, you can slide the sash wide open to capture evening foothills breezes without worrying about flexing, racking, or early hardware failure.
The active sash lifts completely clear of the frame, so you can clean exterior glass from indoors in minutes — no scaffolding, no juggling squeegees in –20 °C wind-chill.
Simply unlock, raise, and tilt the sash toward you; hidden pivot shoes let it disengage and lift out effortlessly. That means safer maintenance for second-storey bedrooms and tight side-yards where ladders are impractical. Because the sash can be removed entirely, you also gain a wider egress opening that meets Alberta Building Code requirements for basement suites—adding both convenience and peace of mind.
A die-cast lock teamed with a closed-back keeper reinforces the interlock rail, resisting prying and meeting forced-entry codes without bulky add-ons.
The solid-zinc alloy body offers up to triple the tensile strength of stamped steel latches and will not corrode when exposed to salty slush spray. Each throw of the cam lock also draws the sash tighter into the fixed jamb, boosting the compression seal and eliminating the micro-drafts that spike January heating bills. Low-profile styling keeps the handle out of curtain lines, preserving the slider’s clean, modern aesthetic.
The profile matches our vertical & horizontal slider family, so mixed-style renovations keep a seamless façade. Frame depth options let you align with existing wall assemblies for a flush, professional look.
Choose a 3 ¼″ retrofit frame to slip neatly into 1950s bungalow openings, or step up to 4 ⅝″ for today’s 2 × 6 walls without extra jamb extensions. Aligned sight-lines mean casements, awnings, and sliders all share the same reveal and shadow line, boosting curb appeal and resale value. With factory-applied colours cured to withstand high-UV mountain light, your exterior stays uniform and fade-free for decades.