RoofKrete

Dimensional Changes

Expansion Simply Explained

Materials covering buildings expand when the temperature rises and contract when the temperature drops. This thermal movement cycle happens every 24 hours.

Roof membranes can fail due to Differential Movement. This occurs when two materials are fastened together and each have a different rate of expansion and contraction resulting in the weaker one becoming fatigued and failing usually by cracking at points of high stress. 

RoofKrete solves this problem in three ways:

1. RoofKrete system 4 has a much lower thermal movement than membranes manufactured from petrochemical products.
2. RoofKrete System 4 forms a monolithic structural system on a roof which is able to withstand laterally imposed loads far greater than that which is normally applied to wooden decks - it is stronger than wooden decking.
3. RoofKrete System 4 is installed as a floating system and therefore differential movement is not an issue.