U-factor
Available on select thermally broken configurations; exact whole-unit value confirmed for the quoted unit
Performance
Design goals meet project conditions.
Performance is evaluated for the actual configuration, size, glass, hardware, exposure and installation approach—not assumed from a product name.
Available performance data
Real numbers. Supporting documents. Exact configurations.
Selected available systems have configuration-specific performance evidence—not just a general product-family claim. These values become project claims only after the proposed unit is matched to the supporting documents.
NFRC SHGC
Solar-control choices shown across reviewed listed glass configurations
NFRC VT
Visible-transmittance examples for balancing daylight and solar control
Florida design pressure
Impact-resistant horizontal-slider approval for HVHZ and non-HVHZ use
Additional reviewed NFRC examples show condensation-resistance values around 29-31. Lower U-factor indicates less heat transfer; SHGC and visible transmittance are selected around climate, orientation, comfort, and daylight goals.
Who measures what
Built for the standards your project team already speaks.
Configuration-specific energy ratings
Select thermally broken configurations can reach U-factors as low as 0.13. When NFRC directory or label information is required, the product code, operator type, glass, size, and listing conditions are matched separately.
Florida product approval
An available impact-resistant horizontal-slider configuration carries Florida approval for High-Velocity Hurricane Zone and non-HVHZ use at +55/-55 psf design pressure.
NAFS / AAMA project language
North American fenestration standards separate design pressure from full performance grade. BelleVier asks for the exact test report, standard edition, operator type, size, glass, and anchorage before representing a result.
Premium aluminum, proven here
Competitive with premium aluminum systems—backed by published values.
The meaningful comparison is product to product: same operator type, size, glass, test method, and installation basis. Selected available configurations carry credible North American thermal and impact data, so BelleVier can compete on published evidence while being precise about the exact package.
Compare frame platformsWhat gets reviewed
Six parts of a responsible specification.
BelleVier helps assemble the product information available for the selected product, glass and hardware package so your project team can evaluate fit.
Thermally broken frames
Insulated aluminum profile options use reinforced thermal barriers to reduce direct heat transfer through the frame.
Weather sealing
Multi-point locks, compression seals, EPDM gaskets, sill design and drainage paths work together at the selected opening type.
Double + triple glazing
Insulating, tempered, laminated, low-E, tinted, privacy and acoustic glazing can be combined around project goals.
Solar control
Low-E coatings, tint, orientation and exterior shading can be coordinated to manage heat gain and visible light.
Heavy-duty operation
Roller, hinge, lock and handle packages are selected around panel size, weight, exposure and expected use.
Configuration documentation
Available NFRC, NAFS/AAMA, impact, water, air and structural documentation is matched to the exact proposed configuration where applicable.
Documentation before claims
Ask for the data tied to your configuration.
Requested performance criteria should be identified early. BelleVier can coordinate available documentation for the proposed unit configuration; the design professional and code authority remain responsible for project requirements and acceptance.
Discuss project criteriaQuick answers
What the published numbers do—and do not—mean.
Can BelleVier provide NFRC ratings?
For matched configurations, BelleVier can coordinate the applicable NFRC directory and label information. The product code, operator type, glass, size, and other listing conditions must match the proposed unit.
Are impact-resistant HVHZ windows available?
Yes. An available horizontal-slider configuration has Florida approval for impact resistance, HVHZ use, and +55/-55 psf design pressure. Project location, opening size, glass, anchorage, substrate, and installation must match the approval documents.
Do published ratings apply to every BelleVier window and door?
No. Ratings are configuration-specific. BelleVier confirms the applicable documentation for the selected frame, operator type, size, glass, hardware, sill, reinforcement, anchorage, and installation basis.
Start with your plans
Let's make the opening work.
Send a plan set, rough opening list, or even an early concept. We'll help identify the right next step.