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15.Examples of the Thermal Insulation to Floors

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planning@worthing.gov.uk

Guidance Note 15. Examples of the Thermal Insulation to Floors

Ground bearing floor slab. U-value of 0.22W/m2K.
-	Perimeter/Area (P/A)
Product	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0
Celotex *	50	50	60	70	70	80	80	80	80
Kingspan **	30	50	60	65	70	75	80	80	80
EPS +	52	79	94	103	109	113	117	120	122
Rockwool #	50	80	90	100	110	115	120	120	125

* Celotex tuff-R Zero GA3000Z
** Kingspan Thermafloor TF70 zero ODP
+ Expanded Polysterene
# Rockwool Rockfloor.

Suspended timber floor construction. U-value of 0.22W/m2K. (50mm wide joists at 400mm centres)
-	Perimeter/Area (P/A)
Product	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0
Celotex *	70	90	100	110	110	110	120	120	130
EPS +	81	107	121	130	136	140	144	146	149
Mineral Fibre %	150	170	200	200	200	250	250	250	250
Kingspan **	70	90	100	105	110	110	115	115	120

* Celotex tuff-R Zero GA3000Z
+ Expanded Polysterene
% Mineral Fibre quilt (12kg/m3)
** Kingspan Thermafloor TF70 zero ODP

There are many alternatives to these options; details can be obtained from the manufacturer of the insulation material.

Links

Celotex Logo Rockwool Logo Kingspan Logo

Please check to ensure that you are using the current issue of this guidance note.

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