For U-Value compliance a Glass Centre Pane of 1.1W/m²K or better is required

For WER ‘A’ use 28mm Float/Argon/Planitherm Total + with warm edge spacer*

(WER ‘B’ if using OW70 Long Leg on all four sides)

For U-Value compliance a Glass Centre Pane of 1.2W/m²K or better is required

For WER ‘A’ use 28mm Float/Argon/Planitherm Total + with warm edge spacer*

For U-Value compliance a Glass Centre Pane of 1.1W/m²K or better is required

For DER ‘B’ use 28mm Float/Argon/Planitherm Total + with warm edge spacer*

For U-Value compliance a Glass Centre Pane of 1.1W/m²K or better is required

For DER ‘B’ use 28mm Float/Argon/Planitherm Total + with warm edge spacer*

For U-Value compliance a Glass Centre Pane of 0.8W/m²K is required

For DER ‘C’ use 28mm Float/Argon/Planitherm Total + with warm edge spacer*

Complies to an overall U-Value of 1.4W/m²K with Glass supplied by Origin

A DER ‘A’ is available with Glass supplied by Origin if required