Fully online technical training designed around real industry demand, so you can specialize at your own pace.
10/31/2026
Start Date
1 month
Duration
100
Total Hours
6 Modules
Program
Duration
Total Hours
Program
Start Date
ICTESS’s High-Performance Windows Training Course trains specialists in the selection, technical specification and installation of high-efficiency fenestration systems. The program covers the core components of next-generation windows: solar control and low-e glass, insulating glass units with noble gas fills, thermally broken frames, and high-performance weatherstripping and hardware.
You will learn the technical ratings that define window performance: U-factor, solar heat gain coefficient (SHGC) and visible transmittance (VT), and how to interpret standardized test results under NFRC certification, the North American Fenestration Standard (NAFS) and IECC requirements. The course ends with a Capstone Project, where you apply everything you have learned to a professional window specification and installation project.
The High-Performance Windows Training Course responds to increasingly strict energy code requirements in the IECC and ASHRAE 90.1, and to the demand for professionals who can specify and install fenestration that meets U-factor and SHGC limits by climate zone. The construction industry needs technicians who master both window thermal performance and the installation techniques that deliver real envelope performance.
The course prepares you to select window systems on technical and economic criteria, interpret product data sheets, NFRC labels and test reports, and carry out installations that maintain rated performance. You will learn to evaluate glass by its optical and thermal properties, specify frames with the right thermal break, and ensure weathertightness with professional sealing.
You will work hands-on with technical catalogs and U-factor calculation tools used by manufacturers and distributors. The course ends with a Capstone Project, where you develop a complete high-performance window specification and installation project.
The High-Performance Windows Training Course prepares you for specialized technical roles at aluminum and vinyl window fabricators, fenestration distributors, general contractors and the technical departments of window manufacturers. You could work as a technical sales specialist, specification representative, high-performance window installer, or field quality control technician.
You will learn to manage fenestration projects from specification through final installation: assessing thermal and acoustic needs, selecting systems by climate zone and orientation, preparing detailed technical estimates, overseeing material acceptance, and carrying out installations that deliver certified performance.
You will also be able to advise on renovations and energy retrofits, audit existing windows and recommend justified replacements, and contribute to energy rating and certification projects as a glazed envelope specialist. The hands-on approach lets you apply what you learn to real projects right away.
Study from anywhere with no commute. Balance your technical specialization with your current job.
Plan your study around your own schedule. Move through the modules when it suits you and review whatever you need.
Learn the current IECC, NFRC and NAFS requirements and the latest solar control glass and thermally broken frame technologies.
Technical video lessons, real product data sheets, forums with specialized tutors, and hands-on specification exercises.
With ICTESS you get specialized technical training focused on professional practice and built so you master the skills demanded in high-performance fenestration and building energy retrofits.
What you'll achieve
Characterize glass by its thermal, optical and solar control properties, selecting insulating glass configurations and coatings suited to each climate zone and facade orientation.
Specify thermally broken frames, sizing the thermal break to meet the frame U-factor needed for IECC fenestration requirements in each climate zone.
Interpret standardized window ratings and tests (U-factor, SHGC, VT, air infiltration, water penetration) and verify NFRC certification and NAFS (AAMA/WDMA/CSA 101/I.S.2/A440) performance.
Install windows professionally, ensuring insulation continuity, proper perimeter sealing and hardware adjustment to maintain rated performance.
Select profiles and hardware based on weathertightness, security and durability requirements, technically justifying the solutions chosen for new construction or retrofit projects.
The construction industry is going through a deep transformation driven by decarbonization goals and stricter energy codes. Windows are one of the most critical elements of the building envelope and can account for a significant share of a building’s energy losses if they are not specified and installed correctly. This creates steady demand for specialists in high-efficiency fenestration.
Shortage of qualified fenestration technicians: Employers struggle to find professionals who can correctly interpret high-performance window specifications. Many installations fall short of expected performance due to product selection errors or installation defects, which increases demand for truly specialized technicians.
Energy retrofits as a job driver: Window replacement is one of the most cost-effective energy retrofit measures, and utility and state efficiency programs and building performance standards are driving envelope upgrades in existing buildings. This multiplies opportunities for high-efficiency window specialists.
Competitive edge in the job market: Specialized training in high-performance windows sets you apart from generalist installers. Mastering technical ratings, applicable codes and professional installation techniques makes you a priority candidate at window fabricators, general contractors and distributors.
Completing the High-Performance Windows Training Course positions you in a field with growing demand driven by building energy efficiency requirements. Retrofits of existing buildings and stricter IECC fenestration requirements are creating steady opportunities for specialists in high-efficiency windows.
Access to specialized technical roles: You will be qualified for positions such as window technical sales specialist, specification representative at distributors, quality manager at window fabricators, or high-performance window installer.
Command of standardized technical specifications: In-depth knowledge of ratings such as U-factor, SHGC, VT and weathertightness classifications lets you read NFRC labels and data sheets, compare products objectively, and justify selections to architects, developers and end clients with solid technical criteria.
Ability to deliver quality installations: You will build the skills to carry out installations that maintain the product’s rated performance, avoiding thermal bridges at the rough opening and ensuring durable seals that meet air and water penetration requirements.
Recognized professional certificate: The ICTESS professional certificate backs your technical specialization in high-performance windows, strengthening your position in the high-performance construction job market and validating your skills with industry companies.
This course is designed for professionals and technicians who want to specialize in the selection, specification and installation of energy-efficient windows. Recommended profiles include:
Program details
The Capstone Project is the culminating stage of the course and brings together all the technical skills you develop. It involves the complete development of a window specification and installation project for a real building or case study, using the professional methods and technical criteria of the high-performance fenestration industry.
The project includes an analysis of building conditions: climate zone, facade orientations, acoustic requirements and solar control needs. You will select glass with a justified insulating glass configuration and coatings, specify thermally broken frames to meet U-factor requirements, select hardware and operating types, and verify performance against the IECC and NFRC ratings. You will also prepare a detailed technical estimate with quantity takeoffs and price justification.
The project also defines the installation procedure: rough opening preparation, frame fastening, perimeter sealing with compatible materials, hardware and weatherstrip adjustment, and final operation checks. The final deliverable must meet the technical standard and professional format of fenestration specifications in building projects, showing that you can produce complete technical specifications for the architect of record or industry clients.
ICTESS’s High-Performance Windows Training Course includes hands-on training with the industry’s standard technical tools: U-factor calculators from leading manufacturers, glass databases with certified properties, and technical configurators for window systems. You will learn to read NFRC labels and standardized product data sheets, interpret test reports from accredited laboratories, and use calculation tables to verify IECC compliance by climate zone. Mastering these tools is key to specifying correctly and technically justifying your solutions to architects, developers and professional clients.
Specific window experience is not required, but basic technical training in construction, building systems or related fields is recommended. The course is designed both for installers seeking specialization and for technical sales staff, project managers and building professionals who need to deepen their knowledge of fenestration. The content starts with heat transfer fundamentals and progresses to more complex technical specifications. It helps to have prior experience reading drawings and data sheets and basic building physics knowledge, although the course includes introductory content to level the playing field.
The ICTESS Professional Certificate backs your technical specialization in high-performance windows and is valued by industry employers as high-level professional development. Although it is not an accredited academic degree, the certificate documents specific, in-demand skills: glass and frame characterization, interpretation of standardized ratings, specification to the IECC, and professional installation techniques. Many window fabricators, distributors and general contractors value this hands-on training as a complement to professional experience, because it shows up-to-date knowledge of current codes and standards and command of the technical specifications covered in the course.
The High-Performance Windows Training Course stands out for its comprehensive approach, combining product performance, applicable codes and professional installation techniques. While many courses focus only on hands-on installation or sales, this course covers in depth the technical ratings that define window performance: U-factor, SHGC, VT, and weathertightness classifications. The content includes interpreting NFRC and NAFS ratings, verifying IECC compliance, and installation techniques that deliver rated performance. This complete technical approach lets you justify specifications to building professionals and stand out from generalist installers.
