1/8" Uncoupling Membrane Underlayment (54 sqft)

Is this a water proofing membrane ?

What type of mortar should be used to adhere this product to a wood sub floor? Modified or unmodified?

could this be used under bamboo flooring to help level out?

Can this materail and process be used out doors like in pa. where there is a big temp swing and freezing to zero degress in t