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Thickness Requirements

Roofs

 U-value W/m2K 0.35 0.25 0.20 0.18 0.16 0.15
 ROOFMATE MinK
 ROOFMATE SL-X mm 80 120  160  180  190  200 
 ROOFMATE SL-A mm 100 140  180  200  240*  260* 
 Standard
 ROOFMATE SL-X mm 100 180  260*  300*  400*  -- 
 ROOFMATE SL-A mm 120 220  300*  360*  --  -- 

Roof build-up:
   Ballast (aggregate/pavers)
   Separation layer (ROOFMATE MK or geotextile e.g. Terram Roofstat R)
   ROOFMATE SL insulation
   Separation layer (if required)
   Mastic asphalt 30mm
   Concrete deck 200mm
*2 layers of insulation required

 

Floors

Solid Ground Bearing Floor
   P/A 0.10 0.20  0.30 0.40  0.50  0.60  0.70  0.80  0.90  1.00 
U-values                      
0.18   50 70  90  110  110  120  120  140  140  140 
0.20   50  60  80  90  100  110  110  110  120  120 
0.22   --  50  70  80  90  90  100  100  100  110 
0.25 -- 50 50 60 70 80 80 80 90 90
No Insulation 0.21 0.36  0.48  0.58  0.67  0.75  0.82  0.89  0.95 1.00 
65mm Screed

Suspended Beam and Block Floor
   P/A 0.10 0.20  0.30 0.40  0.50  0.60  0.70  0.80  0.90  1.00 
U-values                      
0.18   50 90 110 120  120 120 140 140 140 140
0.20   50 80 90 100 100 110 110 110 110 120
0.22   50 60 80 90 90 90 100 100 100 100
0.25 50 50 60 70 80 80 80 80 90 90
No Insulation 0.26 0.41 0.52 0.61 0.68 0.74  0.79 0.83 0.87 0.90 
65mm Screed; block 100 x 440mm, (0.51 W/mK); beam 60mm, (1.13 W/mK)

 

Agricultural Buildings

 U-values W/m2K Roofs Walls
 Heated piggeries1 0.5 0.5
 Unheated piggeries1 0.6 0.6
 Poultry houses2 0.4 0.4
 Crop storage3 0.4-0.45 0.5
1) BS 5502: Part 42
2) MAFF booklet 'Heat Stress in Poultry - solving the problem'
3) BS 5502: Part 71