SeriousGlass and SeriousWindows are advertised to be the best windows availalbe for commercial projects seeking energy efficiency.
They offer 10 year warranties for their products. One of the exclusions on the warranty is: "improper installation".
This type of warranty language is not inconsistent within the industry.
Aside from demanding quality from personnel on a project and delivering a superior product to the owner; include field testing of your window installations. A little due diligence can go a long way.
Recon Independent Assessments provides affordable field testing of window installations nationwide. Ensure your energy efficient windows are not defeated by a poor quality install that allows air infiltration or water penetration.
Contact Recon Independent Assessments to validate the proper installation of your project's windows, store front or curtain wall systems.
info@reconwindowtesting.com please put "validation proposal" in the subject line.