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VLX 500 Single & Double Hung Window in Doral, FL | Sightline Windows & Doors Doral
The VLX 500 Single & Double Hung Window is the aluminum hung window Doral homeowners and builders specify when they want classic vertical operation without giving up modern performance. Both sashes glide smoothly in extruded aluminum tracks, and both tilt inward for safe, easy cleaning from inside the home. At Sightline Windows & Doors Doral, we’re an authorized ViewLux installation partner, which means every VLX 500 we sell is backed by factory warranty protection and installed to the exact standards the manufacturer requires. We’ve fitted these windows into homes from Doral Isles to Costa del Sol, matching everything from Mediterranean stucco to contemporary flat-roof designs. Call (786) 460-1563 to schedule your free on-site measurement and written quote.
Product Overview - VLX 500 Single & Double Hung Window
The VLX 500 is built around a straightforward idea: a window that operates the way people expect, with engineering that exceeds what they assume possible from aluminum. The single hung variant fixes the top sash while the bottom moves vertically. The double hung lets both sashes travel, which matters in Doral’s climate - you can drop the top sash slightly to let rising hot air escape while keeping the bottom secured, or open both for full ventilation.
Both configurations use tilt-in sashes that release from the track with simple hardware latches. You clean the exterior glass from inside your home. No ladders, no hiring window washers for second-story jobs, no risk.
The frame is extruded aluminum with a 2.36-inch profile width and 0.079-inch wall thickness. That spec matters because thinner-walled aluminum frames flex under wind load and thermal cycling. The VLX 500’s wall thickness resists the twisting and racking that cheaper windows develop after a few Doral summers. The thermal break separates interior and exterior aluminum surfaces, so the frame doesn’t conduct heat the way solid aluminum would.
Architecturally, this window fits where vertical proportion matters. Tall narrow openings beside front doors. Bedroom windows stacked above built-in cabinetry. Anywhere you want the traditional sight lines of a hung window with the low maintenance of aluminum. We’ve installed VLX 500 units in Doral homes where HOA guidelines restrict visible exterior materials, and where the homeowner simply wanted something that would still look right in twenty years.
Technical Specifications

| Frame Material | Extruded aluminum with thermal break |
| Profile Width | 2.36 inches |
| Wall Thickness | 0.079 inches |
| Operation | Vertical glide, single or double sash |
| Sash Feature | Tilt-in for interior cleaning access |
| Glass Options | Clear, Frosted, Low-E, Tempered, Laminated |
| Finish Options | Premium Black, Pure White, Anodized Silver, Bronze, Champagne, Teak Wood |
| Screen Options | Half-Screen, Full Screen |
| Energy Rating | NFRC-certified thermal performance |
| Installation Standard | AAMA 2400/2410 compliant |
| Perimeter Seal | AAMA 812 low-expansion foam sealant |
| Impact Option | Laminated impact-resistant glass available |
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AfterPerformance Features
Thermal Efficiency
The thermal break technology in the VLX 500 frame earns NFRC-certified energy performance ratings. In Doral, where air conditioning runs eight months minimum, that thermal break prevents the frame from becoming a radiator pumping outdoor heat into your conditioned space. Lower cooling load means lower FPL bills.
Acoustic Performance
Multi-chamber frame construction and dual weatherstripping paths reduce sound transmission. For homeowners near the Palmetto Expressway, NW 36th Street corridor, or flight paths into Miami International, the laminated glass option adds mass-damping that cuts low-frequency noise significantly.
Airtightness & Weather Seal
Compression seals at all sash-to-frame contact points meet AAMA 2400/2410 standards for air infiltration resistance. You won’t feel drafts around the perimeter in January cold snaps, and conditioned air stays inside where you paid to create it.
Waterproofing
Integrated sill dams, weep channels, and sloped drainage paths move water to the exterior. The AAMA 812 low-expansion foam sealant we apply at perimeter joints creates a secondary moisture barrier. In Doral’s summer downpours, that two-stage defense matters.
Wind Resistance
The 0.079-inch wall thickness and reinforced meeting rail resist positive and negative wind pressures. The VLX 500 carries wind-load ratings that satisfy Florida Building Code requirements for Miami-Dade County, including the enhanced criteria for properties near open terrain or higher elevations.
Security & Hardware
Multi-point locking engages at the sash meeting rail and includes interlocks that resist forced separation. The laminated glass option adds burglary resistance - the interlayer holds shards in place even after impact. Standard hardware finishes match the frame color for clean sight lines.
Color & Glass Options

The six finish options cover the architectural range we see across Doral.
Premium Black and Anodized Silver suit contemporary builds - the black reads as intentional contrast against white stucco or limestone, while anodized silver complements metal roof accents and modern railings. Pure White remains the default for traditional Mediterranean and Spanish Colonial exteriors where trim color matches window color. Bronze and Champagne warm up neutral facades without the maintenance of actual wood. Teak Wood gives you the grain visual of natural timber with aluminum’s immunity to humidity and termites, which matters in Doral’s wet season.
Glass selection depends on location and function. Clear for maximum visible light transmission. Frosted for bathrooms and side-yard privacy windows. Low-E coating is standard for any east or west exposure in Doral - it reflects infrared heat while passing visible light. Tempered glass is code-required for windows near doors, stair landings, and wet areas. Laminated glass serves double duty: impact resistance for hurricane zones and acoustic damping for noise-sensitive rooms. We’ll walk you through which combination makes sense for each opening in your home.
Installation by Sightline Windows & Doors Doral in Doral
Window performance lives or dies at installation. A perfectly engineered VLX 500 becomes a leaky, rattling liability if the frame isn’t square in the opening or if the perimeter gap is stuffed with fiberglass instead of proper foam sealant. That’s why Sightline Windows & Doors Doral follows AAMA 2400/2410 installation standards on every job, documented and warranty-compliant.
Our process starts with a pre-install inspection of each rough opening. We check for level sill, plumb jambs, and square corners. In Doral, we often find settling in slab-on-grade construction or framing irregularities from original builders that need correction before the window goes in. We fix those issues rather than shimming around them.
The frame gets set level, plumb, and square with composite shims that won’t compress or rot. We fasten through the jamb according to ViewLux’s spacing pattern, never through the sill where water intrusion starts. The perimeter gap receives AAMA 812-specified low-expansion foam sealant that fills completely without distorting the frame. Exterior sealing follows manufacturer specification for the substrate - stucco, frame, or block each get appropriate flashing integration.
After installation, we operate every sash through full travel, verify lock engagement, and run a water test on the sill dam. We clean the glass and remove installation debris before we leave. The homeowner receives documentation of the installation standard followed, which protects the ViewLux manufacturer warranty. Improper installation voids that warranty, which is why manufacturer-authorized installation partners exist. Sightline Windows & Doors Doral maintains that authorization through ongoing training and quality verification.
Doral’s specific conditions matter here. The combination of high humidity, intense UV, and tropical storm exposure means shortcuts show up fast. We’ve replaced windows in Doral homes where unqualified installers skipped perimeter foam or failed to integrate head flashing with the weather-resistive barrier. Those windows leaked within two years. Our installations don’t.
Frequently Asked Questions - VLX 500 Single & Double Hung Window

What is the lead time for the VLX 500 Single & Double Hung Window?
Standard lead time runs 4 to 6 weeks from signed approval and deposit, depending on finish and glass selection. Custom sizes or Teak Wood finish may extend slightly. Call (786) 460-1563 to check current availability and reserve your production slot.
Does the VLX 500 qualify for energy tax credits?
The Low-E glass configuration with NFRC-certified thermal performance may qualify for federal energy efficiency tax credits depending on current IRS guidance and your total installation cost. We provide the NFRC label documentation your tax preparer needs. For current credit eligibility, consult your accountant with our specification sheet in hand.
What warranty comes with the Single & Double Hung Window?
ViewLux backs the VLX 500 with a limited lifetime warranty on the frame and sash, with glass coverage for 20 years against seal failure. The warranty requires installation by an authorized partner like Sightline Windows & Doors Doral, following AAMA standards. DIY or unqualified installation voids protection.
Can I customize the size?
Yes, the VLX 500 is available in custom widths and heights to fit existing rough openings, subject to ViewLux’s engineering limits for the series. We measure on-site to verify dimensions and recommend stock sizes where they reduce cost without compromising your opening. Call (786) 460-1563 to schedule measurement.
How do I maintain aluminum frames?
Wash frames twice yearly with mild soap and water, check weep holes for debris after storm season, and lubricate the tilt latches annually with silicone spray. The powdercoat finish requires no repainting or sealing. Avoid abrasive cleaners that scratch the surface. Proper maintenance extends operation life well beyond the warranty period.
Get a Quote - VLX 500 Single & Double Hung Window in Doral
Ready to see how the VLX 500 fits your Doral home? We’ll measure your openings, review finish and glass options against your exposure and budget, and deliver a written line-item quote with no obligation. Every quote includes the complete installed price - no change orders, no surprises. Call (786) 460-1563 or stop by our Doral showroom to handle samples and see hardware operation firsthand. Let’s get your project started.
Written by the team at Sightline Windows & Doors Doral, authorized ViewLux installation partner serving Doral since 2015.
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