NEW DOCUMENT – Rooflights: glass, polycarbonate or GRP?
The choice is critical – and specifiers only have one chance to get it right. NARM has published a new technical document NTD09, providing impartial comparisons between the different materials – enabling specifiers to make informed decisions regarding rooflight specification. NARM technical document NTD09 covers a variety of topics including: light transmission and diffusion; long-term…
