Sustainable Glazing

Sustainable Glazing

We are able to recycle on average 99.5% of commercial float glass and IGUs, other glass can be 100% recycled unless it contains metal or is contaminated. 

We work with 5R Solutions across all our regional operations. They specialise in recycling window glass, which they process and reuse for sandblasting, insulation and filtration systems.

With New Zealand not having a glass manufacturing industry, one can only look to recycling as a local solution for glass. If a unitised frame is being re-used from a building, glass is part of that component and is therefore not separately disposed of but repurposed along with the frame (refer Refurbishment or Re-Use).

Glass Procurement

Glass is one of two primary materials used most frequently in our trade (Note up to 52 individual materials are included in a typical unitised panel). With glass not being manufactured in New Zealand, Thermosash obtains the majority of its glass direct from international tier one suppliers.

We order glass in bulk, cut to final dimensions and nested to reduce glass waste and carbon miles. Wherever possible, we encourage the selection of performance improved glass so that energy use can be potentially reduced in the buildings we help construct.

Low Carbon Glass:

Thermosash have worldwide access to Low Carbon Glass suppliers.


To find out more contact Thermosash.