The HVAC System Behind the Next Generation of High-Performance Homes
CertainTeed's One Precision Assemblies™ (OPA™) and The Unico System are redefining what modern home construction can achieve. By combining factory-built precision with advanced HVAC technology, this partnership delivers homes that are energy efficient, comfortable, and built to meet today's housing challenges.
Whether you're a builder, developer, architect, or homeowner, OPA homes powered by The Unico System demonstrate how integrated building solutions can create healthier, more efficient living spaces.
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A New Standard for High-Performance Homes
CertainTeed's One Precision Assemblies™ (OPA™) is an innovative panelized construction system that uses factory-built wall, floor, and roof assemblies to improve construction quality while reducing build time and waste. Unlike traditional construction, OPA integrates critical building systems during manufacturing to improve consistency and long-term performance.
Because these homes are built with tightly sealed, energy-efficient envelopes, they require an HVAC system capable of maintaining comfort without compromising efficiency. That's where The Unico System excels.
Bringing Innovative Housing Solutions to St. Louis
The first OPA homes west of the Mississippi River are being built in St. Louis, where The Unico System is proudly manufactured. This collaboration demonstrates how advanced HVAC technology and precision-built construction can help address today's housing challenges while creating healthier, more comfortable homes.
The pilot project showcases how builders can reduce construction timelines, improve energy performance, and create attainable housing without sacrificing comfort or quality.
The Unico System
SDHV HVAC for Today's High-Performance Homes
Whether it's a panelized home, custom build, or energy-efficient new construction, The Unico System was designed to work with modern building practices.
Better Humidity Control
Remove up to 30% more humidity than conventional systems to improve comfort and reduce cooling loads.
Quiet Performance
Small outlets and sound-attenuated tubing deliver conditioned air with minimal noise.
Improved Indoor Air Quality
Cleaner, healthier indoor air helps create a more comfortable living environment.
Consistent Comfort
Our aspiration technology eliminates hot and cold spots for even temperatures throughout the home.
Flexible Design
Small-duct technology preserves architectural freedom while simplifying installation.
Frequently Asked Questions:
What is One Precision Assemblies™?
One Precision Assemblies™ (OPA™) is CertainTeed's panelized construction system that uses factory-built floor, wall, and roof assemblies to create high-performance homes more efficiently.
Why is The Unico System used in One Precision Assemblies™ homes?
The Unico System is designed for high-performance homes and delivers superior humidity control, even temperatures, quiet operations, and improved energy efficiency within tightly sealed building envelopes.
What are the benefits of panelized construction?
Panelized construction reduces construction time, minimizes waste, improves quality control, and creates more energy-efficient homes by manufacturing major building components in a controlled environment.
Are OPA homes energy efficient?
Yes. OPA™ homes combine precision-built building envelopes with The Unico System's energy-efficient HVAC technology to improve thermal performance, reduce utility costs, and increase indoor comfort.
See the St. Louis pilot in full
Get the full story behind the first OPA™ homes west of the Mississippi, or download the one-pager to share.