Certifications & Standards
What the Numbers on a Spec Sheet Actually Mean
Window and door performance is described with a handful of recurring terms. Here's what they mean, and where our product lines currently stand.
A note on what's below: the specifications on this page describe the manufacturer engineering behind the uPVC, aluminum, and door systems we install — they are supplier documentation, not certifications held directly by Elegant Windows & Doors. If we hold additional company-level certifications, licensing details, or warranty terms, we'll list them here directly rather than folding them into product specifications.
Reading the Numbers
Three terms worth knowing
R-Value
A measure of how well a material resists heat flow. Higher R-value means better insulation. It's the rating our uPVC supplier publishes for each series.
U-Factor
The inverse idea, used industry-wide by the National Fenestration Rating Council (NFRC): it measures the rate of heat loss through a whole window assembly. Lower U-factor means less heat escapes.
Chambers
The internal air pockets inside a uPVC frame. More chambers generally mean more dead-air insulation and a more rigid frame.
Thermal Resistance by Series (R-value, h·ft²·°F/Btu)
Series 80's multi-chamber configuration is the only line in our range with a stated U-factor equivalency: below 0.18.
Engineering & Testing
What AAMA and NFRC testing actually checks
Our supplier's profiles are engineered to pass strict U.S. testing metrics in three categories. These are standardized industry test categories, not marketing claims:
Air Infiltration
How much outside air leaks through the assembly under pressure — the basis of a window's draft resistance.
Water Deflection
How well the frame and glazing shed wind-driven rain without letting water past the seals.
Wind Load
The structural pressure a window or door can withstand before deflecting beyond safe limits.
Glass
Low-E, Warm Edge, Argon
Glazing units use Low-E coatings with warm-edge spacer bars and argon gas fill. The Series 80 profile accommodates triple-glazed insulated glass units up to 2-1/8" (54mm) thick.
Finishes
50+ Woodgrain & Color Options
Over 50 architectural woodgrain laminations and durable polymer foil color swatches are available across the uPVC range, with AAMA powder coating and anodized finishes on aluminum systems.
Resources
Full Manufacturer Documentation
The complete technical catalogs behind our product lines, for anyone who wants to see every specification. These are supplier documents — the same source material referenced throughout this page.
uPVC & Aluminum Product Guide
Series overview, thermal ratings, and customization options — 11 pages · 0.5 MB
House Door Collection
Steel Panel, PVC Panel GLS, and PVC Panel entry door lines — 6 pages · 1.9 MB
Aluminum Systems Catalog
Full technical specifications for aluminum window, door, and sliding systems — 12 pages · 9 MB
Series 80 AD — Product Sheet
Manufacturer datasheet for the newest addition to the uPVC range — 2 pages · 1.1 MB
Lamination in Stock 2026
Available woodgrain and color decors across the Framex profile lines — 2 pages · 2 MB
These are supplier catalogs and may describe a broader range than what's currently stocked or offered for your project — confirm availability with us before specifying.
Not Sure Which Spec Matters for Your Project?
Tell us about the opening and how the room is used — we'll recommend the right series and explain why.