- By CEPHE®
- ALUMINIUM SYSTEMS, ALUMINIUM WINDOW&DOOR
- 0 Comment
AKOTHERM AT 790 SI
Designed to meet Passive House standards and stringent stretch codes
Engineered and focused on sustainability, this highly insulated system features a slim 90 mm (3.54 in) profile, meeting the highest performance standards. The AT 790SI offers unparalleled functionality, thermal optimization, and a sleek, modern appearance, whether for residential or commercial applications.
The system’s advanced engineering includes continuous gaskets that remain flexible in extreme temperatures ranging from -31°F to +212°F (-35°C to +100°C) and are resistant to ozone, UV, and all weather conditions. Solid insulation inserts enhance its thermal performance, making it ideal for high-performance buildings.
Innovative Twin CoEx seals combine the best of two materials into one integrated component. The inner layer features low lambda values for superior insulation, while the outer EPDM material ensures durability, stability, and weather resistance. A glide polymer coating simplifies installation, saving time and effort on-site.
Seamlessly integrating with the AT 500 curtain wall system, the AT 790SI also accommodates the AT 740SI door profiles via a specialized adapter, providing unmatched flexibility across façade and building envelope designs. With its robust performance and compatibility, the AT 790SI is the ultimate solution for modern, sustainable construction.

Product Specifications

Installation Depths
Frame 90 mm, casement 100 mm, glazing bars 90 mm

Burglar Resistance
up to RC3

Glazing
32 to 70 mm

Sound protection
as per EN ISO 10140-1: Rw = up to 47dB

CE mark
as per EN 14351-1: can be applied

Thermal transmittance
according to EN ISO 10077-2: Uf = up to 0.63 W / (m² K)

Air permeability
as per EN 12207: Class 4

Driving rain resistance
as per EN 12208: up to class E 1200

Avantages
- Best insulation
- Burglar resistant for security
- Very tall casements can be used
- Compatible with existing AKOTHERM systems
- With factory warranty
System selection according to the project
There are a few important points to consider when choosing a system according to the project. These can help you optimize both your budget and the requirements of your project:
- Determining the Needs of the Project
Clarify criteria such as the size of the project, the purpose of use, durability requirements, and aesthetic expectations. These criteria form the basis for choosing the right system. - Evaluating the Technical Specifications of the System
Compare the technical specifications of the system you are considering to the requirements of your project. For example, details such as energy efficiency, insulation properties, or ease of installation should be compatible with the project. - Cost Analysis
When choosing a system, evaluate not only the initial cost but also total costs such as long-term maintenance, energy savings, and lifespan. - Price/Performance Comparison
Determine the most suitable one in terms of price/performance by comparing existing brands and systems with similar features.
If you are undecided about choosing a system, consulting our company and receiving project-specific recommendations will be a great advantage for you. If you want us to make special recommendations for you, you can share more information about your project! 😊 Cephe@cephe.com.tr
Detail Drawings and Manufacturing Preparations
If you have a project and have already decided on the system to use, we can collaborate on site measurements, detailed project drawings, and manufacturing drafts. Partnering with us not only saves you time but also reduces costs while ensuring fast and efficient results. Plus, you’ll have peace of mind knowing your project is in expert hands.
Our Process
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Site Measurements (Röleve)
We perform on-site measurements to analyze the current conditions and gather precise data. Accurate site measurements prevent potential errors in later stages. -
Project Detail Drawings
Detailed technical drawings are created based on the selected system and project requirements. These drawings:- Optimize material selection,
- Minimize potential issues during installation,
- Save time during manufacturing and application processes.
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Preparation of Manufacturing Drafts
We prepare all necessary manufacturing drafts to ensure seamless and error-free production. These drafts include:- Precise dimensions,
- Material lists,
- Assembly sequences and key technical details.
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Cost and Time Efficiency
Professional preparation of detailed drawings and manufacturing documents reduces material waste and shortens application time. This directly lowers overall project costs. -
Expert Support and Confidence
By entrusting your project to skilled professionals, you’ll benefit from a problem-solving approach throughout the process, ensuring a smoother and more secure project completion.
Why Work With Us?
- Experienced Team: With years of industry expertise, we deliver tailored solutions for every project.
- Fast and Reliable Service: We provide effective solutions quickly, making the most of your valuable time.
- Cost Savings: Careful planning and execution keep your budget in check.
If you’re interested in collaborating on detailed drawings and manufacturing preparations, feel free to contact us. We look forward to working with you! Cephe@cephe.com.tr
Production and Installation Services
Our company collaborates with various factories in production, working with more than 13 facilities. We directly manage system details and product supply to ensure the highest quality standards at every stage of our projects.
Our registered brand, CEPHE®, has been a leading name in the industry since 2006. With 27 years of experience in the production and installation of façade systems, we are dedicated to delivering the best results for your projects.
We take pride in having completed over 400 projects in 12 different countries. We look forward to being part of your next project. Please do not hesitate to contact us for further information and collaboration opportunities. cephe@cephe.com.tr
CEPHE®
For 27 years, there is professionalism in detail development, manufacturing and assembly for over 400 projects in 12 countries.