GlasFëns
Information
The technical library — building science, standards, and specification detail, written plainly. Every performance claim is labeled by how it was established.
Frame Width Comparisons
Technical reference.
Aluminum
Aluminum extrusions are the material of choice for window and curtainwall framing on almost all commercial and instituti
Material Choices
Fiberglass (pultruded fiberglass) is the highest performing frame material we offer and the heart of the GlasFëns l
Daylighting
In many new buildings, the design team attempts to maintain high visible light transmittance (VLT or VT) to "connect" oc
Air Infiltration
For the purposes of energy modeling, all new fenestration systems perform comparably with respect to air infiltration. H
NFRC & LEED
The USGBC has adopted the Core Performance Program as a prescriptive path to meet energy performance requirements of the
U-Value & SHGC
The U value or Uw is a measure of transmittance and allows comparison of thermal behaviour between different window unit
Thermal Performance
ASHRAE 90.1 "Energy Standards for Buildings Other Than Low-Rise Residential Buildings," and the commercial requirements
Condensation Resistance
Condensation will occur on any interior surface that falls below the Dew Point Temperature (Tdp) of interior ambient air
Air Barrier Interface
Technical reference.
Glass and Glazing
Technical reference.
Installation
Never underestimate the importance of a good installation. Smooth, trouble-free functionality of your windows and doors
Terms & Conditions
GENERAL TERMS AND CONDITIONS (REV. 02192020)
Warranty
BUYER’S FAILURE TO PAY ALL SUMS DUE IN STRICT ACCORDANCE WITH GF TERMS AND CONDITIONS/QUOTE WILL VOID APPLICABLE WARRANT
Resources
AAMA Standards and Publications
Key to NFRC Codes
Technical reference.
Affiliations
CLICK LINKS BELOW FOR FURTHER INFORMATION.
Glossary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z