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title: Home | BuildingGT
description: Discover our precise U-Value measurement solutions for building energy assessment. ISO-certified, Swiss-patented devices provide reliable data for renovations, damage detection, and construction inspections.
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##### [ UVAL Wireless Explore our wireless system for accurate and remote U-Value measurement.](https://info.greenteg.com/building/uval-wireless?hsLang=en)
##### [ UVAL Wired Explore our wired system for accurate U-Value measurement.](https://info.greenteg.com/building/uval-wired?hsLang=en)
##### [UVAL Wired vs UVAL Wireless Discover the key differences between our two U-value measurement systems.](https://info.greenteg.com/building/uval-wired-vs-uval-wireless?hsLang=en)
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# U-Value Measurement Solutions for your Building
In building energy assessment, one key metric stands out: the U-value (inverse of R-Value), or heat transfer coefficient. Explore our solutions for real U-value measurement.
## Get precise data on a building's energy efficiency
Our UVAL series consists of UVAL Wired and UVAL Wireless. These are accurate and non-invasive measurement systems that deliver vital calculations for buildings, such as heat flux, temperature, and consequently U-Value.
Download Brochure
### Accurate. Non-Invasive. Plug & Play.
Traditionally, assessing a building's energy efficiency involved invasive inspections like dismantling walls to inspect materials or unreliable estimates from historical data.
Our calibrated, plug-and-play measurement kits provide reliable data for clear thermal efficiency evaluations. Both UVAL Wired and UVAL Wireless offer accurate, non-invasive real U-Value measurements of various building envelopes, including walls, roofs, floors, and windows.
[Shop Now!](https://shop.greenteg.com/building/)
#### Product Highlights
###### ISO-Conforming
All devices are ISO-conforming, with ISO 9869 standard measurements
###### Swiss-Patented
Our solutions, developed in Switzerland, are trusted by industries globally
###### Plug & Play
Sensor calibration data preloaded onto logger for quick measurements
###### Reliable & Precise
Our kits enable accurate thermal measurements and efficiency assessments
###### Heat Flux Tech
Our heat flux sensors collect data easily on surface contact for U-Value analysis
###### Non-Invasive
Receive precise thermal measurements without the need for intrusive methods
PRODUCTS
### Available in wired or wireless configuration
We offer the world’s only wireless, modular, remote U-Value measurement kit, providing easy remote access to measurements and enhancing both convenience and efficiency.
Discover the key differences between our UVAL Wired and UVAL Wireless systems below.
[UVAL Wired vs UVAL Wireless](https://info.greenteg.com/building/uval-wired-vs-uval-wireless?hsLang=en)
[](https://info.greenteg.com/building/uval-wireless?hsLang=en)
[](https://info.greenteg.com/building/uval-wired?hsLang=en)
##### Discover Common Applications
#### Building Performance Assessment
Engineered for accurate U-value measurement, ensuring compliance with regulatory standards.
[Read More](https://info.greenteg.com/building/building-performance-assessments?hsLang=en)
#### Building Energy Rating
Obtain precise data to complement energy assessment methodologies and ensure full transparency.
[Read More](https://info.greenteg.com/building/energy-rating?hsLang=en)
#### Retrofitting Evaluation
Accurate U-value assessments empower informed decisions on renovation, providing real data before and after retrofitting.
[Read More](https://info.greenteg.com/building/retrofit-evaluation-decisions?hsLang=en)
#### Envelope & Insulation Testing
Ideal for R&D and quality control, ensuring precise assessment of innovative materials.
[Read More](https://info.greenteg.com/building/building-envelope-insulation?hsLang=en)
OUR CLIENTS
### Our clients come from diverse roles within the building construction industry, spanning engineers, researchers, and environmental consultants.
[Read Publications](https://info.greenteg.com/building/publication-highlights?hsLang=en)
##### Frequently Asked Questions
For more information on each system, please check out their respective product pages.
Didn't find what you're looking for? Feel free to [send us an e-mail](https://info.greenteg.com/building#building-contact-us) or [book a meeting](https://info.greenteg.com/building#building-contact-us) with our expert.
###### Which countries can I use the systems in?
Our UVAL Wired System may be purchased and used worldwide.
Meanwhile, the UVAL Wireless system is only available in Europe, most of Africa, and the Middle East. It employs a sub-GHz Communication link at 868 MHz.
###### What are the differences between the wired and wireless systems?
**To view a detailed comparative table between the wired and wireless systems, please download our brochure.**
Below is a summary of the key differences:
- UVAL Wireless supports up to 5 measurement points per system, offering greater flexibility in data collection. UVAL Wired only allows 1.
- UVAL Wireless allows for data collection and monitoring from a distance, enhancing convenience and efficiency. Wired systems require direct access for data retrieval.
- UVAL Wireless provides direct measurements for U-Value, R-Value, and Lambda Value. UVAL Wired provides only U-Value measurements; R-Value needs to be calculated separately.
###### Is the software included?
Yes, software and subsequent updates are free.
[More FAQ](https://info.greenteg.com/building-faq?hsLang=en)
###### Download our Brochure
Explore our comprehensive brochure for detailed insights into our products and services. You'll receive a download link for the brochure shortly after submission.
###### Have more questions?
Looking for more information about the product or interested in a personalized quote? Fill out the form below, and we’ll get back to you as soon as possible.
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