Each roll is 15m sq  (15m x 1m) 3mm thick
 
With its silver damp-proof film, its quality literally shines. This flat, strong and flexible foam is an excellent protection from humidity. 
The rolls are factory seconds but haven't been used.
They can be used for a variety of uses.
 
Benefits:
Excellent impact sound reduction
Humidity and water vapour barrier
Flooring Underlay
Light yet sturdy
Insulation
Smooths irregular surfaces
Easy to handle and install