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Technical

Standard Dimensions:

1200mm x 425mm to fit 450mm stud and joist centres
1200mm x 575mm to fit 600mm stud and joist centres

Thermal Resistance:

At standard dimensions with 450mm stud centres the Thermal Resistance, R value achievable is 1.5 m2K/W minimum.

Your ThermaFlex® Insulation Calculator

Area to be insulated Number of packs required
Based on outside wall measurements ThermaFlex®
1200mm x 425mm
ThermaFlex®
1200mm x 575mm
Sq feet Squares

800 8 21 15
900 9 24 17
1000 10 26 19
1100 11 28 21
1200 12 31 23
1300 13 34 25
1400 14 36 27
1500 15 39 29
1600 16 41 31
1700 17 44 32
1800 18 46 34
1900 19 49 36
2000 20 51 38
Note: 1 Square = 100 square feet = 9.29 square metres. Total area to be insulated should be calculated using outside wall measurements. Quantities in tables have been adjusted to allow for either wall, ceiling or floor timbers and outside walls. These figures are intended as a guide only.

 

Calculation of ThermaFlex® Requirements

Floor Plan: (not to scale)

A = 3 metres, B = 3 metres, C = 6 metres, D = 5 metres, E= 9 metres, F = 5 metres, G = 3 metres.

Calculation for Roof or Floor area:

(A x B) + (D x E) = Area to be insulated

For Example : using the wall lengths from the example above, the area of the roof or floor is;
(3 x 3) + (5 x 9) = 53 square metres to be insulated

Calculation for Wall area:

(A+B+C+D+E+F+G) x (Height of walls from floor to ceiling) LESS (area of windows and doors) = Area to be insulated

For Example: using the wall lengths from the above example and a Wall Height of 2.4 metres. Assume area of doors and windows is 16 square metres. Then the Area of all the walls is;
(3 + 3 + 6 + 5 + 9 + 5 + 3) x 2.4 – 16 = 65.6 square metres to be insulated

Check areas to be insulated against above table for the number of ThermaFlex® packs required.