Grout Calculator| MAPEI adhesives sealants chemical products for construction
I've had a few beers tonight after an unfortunate bit of news today however, it would seem Mapei didn't help here.
There calculator for there above mentioned product confuses mm and inches? I believe that if you enter the mm required into the metric side,( Although in brackets it says to enter it in inches),you get the correct results, when compared to the above chart from 3-fall.
Therefore,23.73% in excess only. Furthermore, when looking at the formula they use, that confirms this. Although oddly,(but only slightly)there formula and calculator do not seem to add up exactly.
There formula is Length + width
-------------------- X thickness X joint X1.5 = Kg per m2
Length X width
.33 Kg per m2 from formula
.352 KG M2 from calculator
Sorry for the above .my error