EXPOL R-VALUE CALCULATORS
EXPOL TIMBER UNDERFLOOR PACK CALCULATOR
This handy calculator will show you how much EXPOL R1.4, R1.8, R2.5 & R3.1 you need to buy. Simply enter the area to be insulated in feet or metres, then choose your joist width.
The calculator will give you the number of packs you will need to complete your project.
R-value 1.4 & 1.8
Underfloor Pack
R-value 2.5 & 3.1
Underfloor 2.5 & 3.1
EXPOL FLOOR SLAB INSULATION CALCULATOR
For over 40 years EXPOL have been at the leading edge of delivering Lightweight Polystyrene Construction Solutions.
With the introduction of the Building Code changes in 2023 our technical and engineering team have designed the EXPOL Floor Slab Insulation Calculator which give you a selection of solutions that we have developed using our New Generation floor and slab insulation products.
These meet the code and address the specific needs of the varying projects and environments throughout New Zealand.
EXPOL R-VALUE CALCULATOR
Welcome to the EXPOL R-Value Calculator. An R-value is a rating which measures how well insulation can resist heat flow. ‘R’ stands for thermal resistance. The R-value depends on the type of material, its density and thickness. Tiny air particles trapped in the insulating material resist the movement of heat (and cold).
To see R-value of thickness choose thickness, then choose product, then choose thickness value, you will then get R-value.
To see thickness of the R-value choose R-value, then choose product, then choose R-value and it will give you the thickness of the product.
R-Value
SHEET CALCULATOR
Our Sheet Calculator tells you how many sheets you will need to complete your project. To see how many sheets you need, enter the area in feet or metres, then choose your sheet size. The calculator will give you the required number of sheets.