Hi.
I am a new member.
Our house was destroyed by Tropical Cyclone Yasi and we are in the process of demolishing it in order to build a new house.
Not 1 window was broken and we want to re-use them to save money.
All the windows are rated N4 but we have been told new rating have been applied and we need a C2 rating.
How does the old N4 compare to the new C2?
Thanks in advance
Wolffie
Windows ratings
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