Gwp

3 articles

A visual comparison of old R-410A HVAC systems and new, environmentally friendly refrigerants, symbolizing the industry's regulatory shift.

What are modern HVAC refrigerants and why do regulations matter?

Starting January 1, 2025, manufacturing or importing new HVAC systems that use R-410A, a refrigerant with a global warming potential (GWP) of 2088, becomes illegal.

Rick Donovan·June 26, 2026

Close-up view of a construction worker carefully installing high-performance insulation into a wall cavity, demonstrating proper R-value and GWP considerations.

Materials

How to Choose Insulation: R-Value, GWP, and Installation

HFC-245fa, a blowing agent in some spray foam insulation, carries a Global Warming Potential (GWP) of 1030, trapping heat 1,030 times more effectively than carbon dioxide over 100 years, according to

Kyle Brenner·June 7, 2026

Cross-section of a house wall showing insulation, with a stark contrast between a clean interior and a polluted exterior environment, highlighting the environmental cost.

Materials

Understanding Insulation's R-Value and Environmental Cost

The insulation material within residential structures could be utilizing blowing agents with a Global Warming Potential (GWP) of 1030, making them 1030 times worse for the environment than carbon diox

Kyle Brenner·May 6, 2026