LoĒ-180
Surface 2
High solar heat gain for
north and east elevations


A single slider window has two panels arranged side by side: one fixed and one horizontally sliding. Pushing the sliding sash sideways opens half the window, and an integrated tilt-in function allows the sliding sash to pivot inward for exterior glass cleaning. Window Force single slider windows are built on the Classic Series 3 1/4" platform in lead-free uPVC with welded sash construction, interlocking sash rails, and an integrated roller system for smooth horizontal travel.

The sliding sash runs horizontally on a roller system embedded in the sill and head track. Stainless steel or nylon rollers at the bottom support the sash weight and allow side-to-side travel with minimal friction. The cam lock engages at the meeting stile when the sash is closed, drawing the sliding sash against the fixed panel for a consistent seal. Flush bolts are available at the sill and head for additional security. The tilt-in function allows the sliding sash to pivot inward at the top, rotating into the room and exposing the exterior glass for cleaning.

Single slider windows are suited for openings that are wider than they are tall — a format common in basement windows, horizontal ribbon windows, and rooms where a low sill line is combined with a wide view. Because the sash travels within the frame plane, no exterior clearance is needed, making sliders appropriate beside decks, patios, or in constrained spaces. A single slider opens half its total width, which is more than a single hung opens vertically for the same frame height, making it efficient in wide, low openings.
Horizontal sash channel geometry with integrated roller system in the sill track; sash travels on low-friction rollers for smooth horizontal operation
Welded sash construction — no adhesives or sealants; fully airtight and watertight at the sash corners
Interlocking sash rails at the meeting stile create a consistent seal between the sliding and fixed panel when the window is closed
Flush bolt system for additional locking at the sill and head where required
The cam lock at the meeting stile draws the sliding sash against the fixed panel frame when engaged, creating a compressed seal at the vertical sash junction. The mechanism provides a clear locked / unlocked indication and requires only a simple lever motion to set or release.
Embedded rollers in the sill track support the sash weight and allow horizontal travel with minimal hand force. The roller system is designed for long-service life without adjustment, and the head track guides keep the sash aligned vertically throughout its travel.
The sliding sash on Window Force single slider windows includes a tilt-in function that allows it to pivot inward at the top, rotating into the room and giving access to the exterior glass surface from inside. The sash disengages from the head track during tilt and re-engages when returned to the vertical operating position.



| Model | SSLO_IS_CLRCARD-ARG90-CARD180#3 | SSLO_IS_CLRCARD-ARG90-CARD180#3-ARG90-CLRCARDM | SST_IS_CLRCARD-ARG90-CARD180#3 | SST_IS_CLRCARD-ARG90-CARD180#3-ARG90-CLRCARD |
|---|---|---|---|---|
| U-factor, W/(m²·K) | 1.72 | 1.66 | 1.73 | 1.66 |
| Solar Heat Gain (SHGC) | 0.53 | 0.48 | 0.53 | 0.48 |
| Energy Rating | 31 | 29 | 31 | 30 |
| ENERGY STAR Zones, 2015 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 |
| ENERGY STAR Zones, 2010 | ABC | ABC | ABC | ABC |
| Layers of Glazing | 2 | 3 | 2 | 3 |
| NRCan Reference | NR9161-12601987-ES | NR9161-12601991-ES | NR9161-12601992-ES | NR9161-12601996-ES |
| Energy Efficiency Verification Reference | W535-1 | W535-1 | W535-1 | W535-1 |
| U-factor, Btu/(h·ft²·°F) | 0.3 | 0.29 | 0.3 | 0.29 |
| Visible Transmittance | 0.61 | 0.56 | 0.61 | 0.56 |
| Air Leakage — Infiltration, l/(s·m²) | 0.83 | 0.83 | 0.66 | 0.66 |
| Air Leakage — Exfiltration, l/(s·m²) | 1.16 | 1.16 | 0.92 | 0.92 |
| Pane | Width, |
Height, |
Max Sq.Ft. |
|---|---|---|---|
| Double Glass | 19" — 68" | 12" — 46" | 21 sq.ft. |
Window Force provides warranty coverage on materials and manufacturing defects under normal use and service conditions. Claims are handled directly through Window Force. Inspection and resolution are coordinated by the factory. Repair or replacement is determined based on assessment.
Manufacturing defects in window components, sealed glass unit failure under normal conditions, hardware performance under standard use
Installation-related issues, damage during handling or after delivery, structural movement or excessive humidity, misuse or modification
Everything you need to know about the product and billing.
A single slider has one fixed panel and one sliding sash. A double slider has two panels that both slide horizontally. With a single slider, half the window can open; with a double slider, both halves open and can be moved independently, which provides more ventilation control and allows you to direct airflow from either side. An end vent slider is a variation of the double slider with a narrower sliding panel at one or both ends.
Yes — the wide, low profile of slider windows makes them a common choice for basement openings. The sash operates within the frame plane with no exterior projection, which works well when the window is close to grade. Egress compliance depends on the clear opening dimensions of the specific unit, so confirm egress requirements for your project before ordering.
No. Single and double slider windows are double-pane only on both Classic and Ultraslim Series platforms. The roller system and sash construction are designed around double-pane sash weight, and triple-pane is not supported in slider configurations. For triple-pane, casement or awning windows are the correct choice.
Window Force single slider windows include a tilt-in function on the sliding sash. The top of the sash disengages from the head track and pivots inward, rotating the exterior glass surface into reach from inside the room. This allows exterior glass cleaning without outdoor access. The fixed panel requires exterior cleaning.
The roller system does most of the work — the quality and alignment of the sill-track rollers determine how easily the sash travels. Window Force slider windows use embedded rollers designed for long-service life without adjustment. Keeping the sill track clear of debris and wiping it periodically with a damp cloth maintains smooth operation. Lubrication is generally not required for the rollers, but the cam lock cam and the head track guides benefit from occasional light lubrication.
Yes. Slider windows can be mulled side-by-side to create wider window bands. In a ribbon configuration, fixed panels are typically placed at the ends or between operable sliders to provide structural support and maintain consistent sightlines. Window Force mulling systems are compatible with Classic Series slider units and allow combination assemblies to be specified for larger openings.
Single slider windows are manufactured at our 80,000 sq.ft. facility in Vaughan, Ontario, and shipped to dealers and projects across Canada, including markets in Halifax, Moncton, Montréal, Québec City, Winnipeg, Regina, Saskatoon, Red Deer, Kelowna, and Victoria.



Window Force manufactures windows for builders, dealers, and contractors, and also accepts direct orders from homeowners. Because we manufacture rather than install, we can connect you with a qualified installation team in your area so the windows are fitted and sealed correctly.






