How do I fix the insulated underlay to the subfloor?

Follow these steps to secure the Warmup insulated underlay to the subfloor:

• Ensure that the base is clean and dry
• Roll out the underlay, foil face down (you may secure edges using sections of duct tape)
• Roll out the next section of underlay
• Remove the protective film from the self adhesive overlap
• Stick both rows together to create a damp proof situation
• Repeat until floor area is covered.