Nsfs 347 2021 -

Encourages the use of sustainable materials and design for longevity.

Focuses on the service life and resilience of the roofing system. nsfs 347 2021

Evaluates the manufacturer's commitment to social responsibility and ethical practices. Encourages the use of sustainable materials and design

Measures operational efficiency, including water use, energy consumption, and waste management. including water use

Products are assessed based on their performance across five major categories: