The surcharges are calculated by factors over m2 price on equipment and meter price on pipes. These can be used with the tables for heat insulation on equipment and pipes. The tables and measuring methods are approximations.

Cold insulation: PIR/PUR 50 mm with aluminium sheeting, armaflex 1,9 mm without additional finishing, foam glass 50 mm with aluminium sheeting.

Sound insulation: Rockwool, anti-drumming foil and aluminium sheeting.