How much adhesive do i need?
Based on the formula of 1.8 kgs per 1mm depth per m2, you will need to allow a minimum 3mm bed of adhesive for bonding down the XPS insulation boards or heatstore tile backer boards to the sub-floor, 4mm coverage of the cable plus a minimum 1.5mm bed of adhesive to bond the tiles (total depth of adhesive = 8.5mm).
5m2 tiled area with insulation board
5m x 8.5mm x 1.8kg = 77kg
Total amount of adhesive
5m2 tiled area with insulation board
= 4 x 20kg bags
5m2 tiled area with insulation board
10m x 8.5mm x 1.8kg = 153kg
Total amount of adhesive
5m2 tiled area with insulation board
= 8 x 20kg bags
How much latex self levelling compound do i need?
Based on the formula of 1.8 kgs per 1mm depth per m2, you will need to allow a minimum 3mm bed of adhesive for bonding down the XPS insulation boards or heatstore tile backer boards to the sub-floor, 4mm coverage of the cable plus a minimum 1.5mm bed of adhesive to bond the tiles (total depth of adhesive = 8.5mm).
Based on the formula
1.67Kg/sqm x area(sqm)
x 6mm thickness divided by 20Kg
= number of bags
Example for a 5m2 area
1.67kg x 5m x 6mm = 50kg
Total amount of levelling compound
= 3 x 20kg bags
5m2 tiled area with insulation board
1.67kg x 10m x 6mm = 100kg
Total amount of levelling compound
= 5 x 20kg bags
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