System performance

Danskin Thermal Saddle System U-value tables using Knauf Polyfoam (U-values in W/m2K for given P/A Ratios)

Data courtesy of Knauf Insulation calculated using BS EN ISO 13370:1998.

Please refer to Approved Document L1A (England and Wales) or the Technical Handbook (Scotland) for guidance on acceptable U values.

Figures in red indicate non compliance with a maximum 0.25 U Value.

85mm boards are a non stock item and may be subject to a lead in time.

The system is available with alternative insulation materials where particular performance or environmental properties are required.
Please contact Danskin for advice.

E&OE. Information believed to be accurate at time of printing. Specifications may change without prior notice.

Beam and Block ( with dense infill blocks )
22mm Chipboard on bearers at 600mm centres

Polyfoam Thickness	P/A Ratio 0.25	P/A Ratio 0.3	P/A Ratio 0.45	P/A Ratio 0.6
50mm	0.25	0.27	0.31	0.33
75mm	0.22	0.23	0.25	0.27
85mm	0.20	0.21	0.24	0.25

Precast Concrete Plank ( Minimum 150mm thick )
22mm Chipboard on bearers at 600mm centres

Polyfoam Thickness	P/A Ratio 0.25	P/A Ratio 0.3	P/A Ratio 0.45	P/A Ratio 0.6
50mm	0.25	0.27	0.30	0.33
75mm	0.22	0.23	0.25	0.26
85mm	0.20	0.21	0.23	0.25

Beam and Block ( aircrete block with lambda 0.16 W/mK )
22mm Chipboard on bearers at 600mm centres

Polyfoam Thickness	P/A Ratio 0.25	P/A Ratio 0.3	P/A Ratio 0.45	P/A Ratio 0.6
50mm	0.23	0.25	0.27	0.29
75mm	0.20	0.21	0.23	0.24
85mm	0.19	0.20	0.22	0.23

Cast In-situ Slab
22mm Chipboard on bearers at 600mm centres

Polyfoam Thickness	P/A Ratio 0.25	P/A Ratio 0.3	P/A Ratio 0.45	P/A Ratio 0.6
50mm	0.23	0.25	0.29	0.32
75mm	0.20	0.21	0.24	0.26
85mm	0.19	0.20	0.23	0.24