How long of a delay is there between installing Warmboard and continuing the building?
Warmboard is installed about as fast as regular subfloor. The tubing should be placed in the channels as soon as the entire subfloor is nailed down. Tubing takes generally a day to put in place. Walls can be built on top of Warmboard as soon as the tubing is down. Typically the tubing is installed the next day after subfloor installation and the framing contractors never leave the job site.