VLX 500 Sliding Window

VLX 500 Sliding Window in Pasadena, CA | Lightwell Windows Pasadena

The VLX 500 sliding window is an aluminum glazing system built for wide openings and clean sightlines. Homeowners in Pasadena choose it for mid-century remodels, rear additions that open to patios, and any room where a tall horizontal window makes sense. Engineered with a 1.97″ profile and a true thermal break, it delivers the slim look of commercial aluminum without the energy penalty older frames carried. Lightwell Windows Pasadena is an authorized ViewLux installation partner, which means we handle measurement, ordering, and AAMA-compliant installation under one roof. Call (626) 628-2308 to schedule a free site measurement.

Call (626) 628-2308

Product Overview – VLX 500 Sliding Window

The VLX 500 is what we recommend when a client wants the window to disappear into the wall. It’s a high-performance aluminum sliding system with a slim 1.97″ profile width, so the frame reads as a thin line rather than a bulky border. That’s the feature that sells it: maximum glass, minimal metal. The sash glides on precision rollers that keep the panel moving smoothly even at widths over 8 feet, which is something cheaper vinyl sliders struggle with after a few Pasadena summers.

ViewLux designed this series for architects and homeowners who spec aluminum for its strength-to-weight ratio. Aluminum doesn’t warp, rot, or expand the way vinyl and wood do in Southern California heat. A VLX 500 window in Pasadena will hold its shape through temperature swings from the low 40s in winter to triple digits in August. The 0.079″ wall thickness on the extrusion gives the frame real torsional rigidity. You feel it when you close the sash: there’s no flex, no rattle, no cheap hollow sound.

Buyers choose the VLX 500 in two track configurations. The 2-track layout gives you a single sliding panel and a fixed panel, which works well for standard openings. The 3-track configuration lets two sashes slide while one stays fixed, opening up roughly two-thirds of the total width for ventilation. That’s the version we install most often in Pasadena living rooms and sunrooms where cross-breeze matters during summer evenings. Both configurations accept the same glass and finish options, so the design language stays consistent across the house.

Technical Specifications

Here’s what the VLX 500 brings to the table, in plain numbers.

• Frame material: Extruded aluminum, 0.079″ wall thickness
• Profile width: 1.97″ (50 mm)
• Track configurations: 2-Track (one sliding, one fixed panel) or 3-Track (two sliding, one fixed panel)
• Glass options: Clear, Frosted, Low-E, Tempered, Laminated
• Finish options: Premium Black, Pure White, Anodized Silver, Bronze, Champagne, Teak Wood
• Screen options: Retractable Screen, Sliding Screen
• Thermal performance: NFRC-rated with thermal break technology
• Installation standard: AAMA 2400/2410 compliant
• Perimeter sealant: AAMA 812 low-expansion foam on all joints
• Wind load: Rated for Pasadena-area climate requirements

All glass packages are available in laminated configurations for impact resistance. Tempered glass meets safety glazing code where required. Low-E coatings are applied on surface 2 or 3 depending on orientation and sun exposure.

Performance Features

Thermal Efficiency – The VLX 500 isn’t a thermally broken frame in name only. The polyamide strut that separates the interior and exterior aluminum extrusions interrupts the thermal bridge that made old aluminum windows notorious for condensation and heat transfer. NFRC-rated performance data is available for every glass package we quote, so you know the U-factor and SHGC before you buy. In Pasadena, where cooling costs run nearly year-round, that matters on your SMUD or PWP bill every month.

Acoustic Performance – Homes near the 210, the Gold Line tracks, or busy corridors like Lake Avenue get real noise reduction from a VLX 500 with laminated glass. The laminated interlayer dampens sound transmission across the frequency range that makes traffic noise intrusive. Combined with the frame’s airtight seal, a closed VLX 500 cuts exterior noise noticeably compared to a single-pane slider or an old aluminum window with worn weatherstripping.

Airtightness & Weather Seal – The VLX 500 uses compression gaskets at the sash-to-frame interface and a positive interlock at the meeting rail. That means when you lock the sash, the gaskets compress against the aluminum rather than simply touching it. Airtightness is what prevents dust intrusion, drafts, and the tiny pressure differences that cause windows to whistle on windy days. Pasadena’s Santa Ana events in fall put real pressure on window seals. This hardware was designed for that test.

Waterproofing – The frame’s drainage path is engineered into the extrusion itself. Water that finds its way past the outer gasket hits an internal dam and drains through weep slots to the exterior. We add AAMA 812 low-expansion foam sealant on all perimeter joints during installation, which fills voids and keeps water from tracking behind the frame. Proper waterproofing is a system: frame design plus correct installation. We control both halves of that equation.

Wind Resistance – The 0.079″ extrusion wall and reinforced corner keys let the VLX 500 span wide openings without a center post. Wind-load ratings are calculated for each opening size and glass package against Pasadena’s building requirements. Big sliders in exposed locations, like a canyon-facing wall in Altadena or a second-story opening with no adjacent houses, need adequate structural capacity. This frame has it.

Security & Hardware – The locking mechanism on the VLX 500 is a multi-point lock that engages at the meeting rail rather than a single latch in the middle. That makes the sash significantly harder to pry open than a typical sliding window. For additional protection, laminated glass holds together even when impacted, which deters forced entry and slows anyone attempting to gain access through the glass itself.

Color & Glass Options

The VLX 500 comes in six finishes, and the right choice depends on your home’s architectural language. Premium Black is the default spec for modern and contemporary homes across Pasadena: it reads sharp against white stucco and matches black steel door frames. Pure White suits Spanish Colonial and traditional bungalow styles where the window should blend with trim rather than contrast it. Anodized Silver is a raw aluminum look that fits industrial and loft-style interiors. Bronze and Champagne lean warm, working well with Craftsman-era homes and natural wood elements. Teak Wood is a wood-grain finish that gives the durability of aluminum with the visual warmth of timber, popular with clients who want the look of wood windows without the maintenance in Pasadena’s dry climate.

Glass selection is driven by what each room needs. Clear is the baseline. Low-E adds a microscopically thin coating that reflects heat while letting light through; we recommend it on west- and south-facing elevations. Frosted gives privacy for bathrooms and side yards that face neighboring homes. Tempered is safety glass that shatters into small granules rather than sharp shards and is required in certain locations by code. Laminated sandwiches an interlayer between two panes, providing impact resistance, noise reduction, and UV protection in one package.

Installation by Lightwell Windows Pasadena in Pasadena

We’ve replaced enough poorly installed windows in Pasadena to know the pattern: the window itself was fine, but the installation failed. Aluminum windows with a thermal break are only as efficient as the opening they’re sealed into. A gap of a quarter inch along the rough opening, left unfilled, negates the thermal break entirely. That’s why we treat installation as a separate craft from window sales.

Every VLX 500 installation by Lightwell Windows Pasadena starts with a pre-install inspection. We measure the rough opening at multiple points, check the framing for level and plumb, assess existing flashing conditions, and identify any water intrusion history before we order the window. The window is set level, plumb, and square using shims placed at specific load points, never just crammed into the opening. We seal the entire perimeter with AAMA 812 low-expansion foam, which fills voids without distorting the frame. Installation follows AAMA 2400/2410 standards for aluminum window installation, and we complete a water test on the perimeter before trim and interior finish work.

Here’s the thing about warranties: ViewLux backs the VLX 500 with a manufacturer warranty, but that warranty is void if the window is installed incorrectly. A DIY installation or a handyman who doesn’t follow AAMA standards shifts all the risk onto you. When Lightwell Windows Pasadena installs it, the installation is warranty-safe and we stand behind the work. Pasadena’s mix of older homes with redwood framing, lath-and-plaster walls, and stucco exteriors means every opening is a little different. We’re used to that.

Frequently Asked Questions – VLX 500 Sliding Window

Get a Quote – VLX 500 Sliding Window in Pasadena

The best way to move forward is a free on-site measurement. We’ll assess your existing openings, discuss which VLX 500 configuration fits your home, and provide a written line-item quote with glass, finish, and installation broken out separately. No pressure, no change orders down the line. Call Lightwell Windows Pasadena at (626) 628-2308 to schedule your free measurement, or ask about visiting a completed installation in the Pasadena area to see the VLX 500 in person.

Written by the team at Lightwell Windows Pasadena, serving Pasadena and surrounding communities as an authorized ViewLux installation partner.