it's all about

remember convection currents?

thicker

fluffy

• goose down most efficient
• more dead air per volume
• synthetics mimic this to a lesser degree
• you're finding the most efficient air trapper

r factor

• measurement of insulation
• equal r values mean the same
• pink insulation to concrete 1:30

recommended r values

• basement floor r10
• basement walls r12
• walls r20
• roof/ceiling r40

keep it similar

• you're testing insulation
• reduce variance
• measure three types
• number of trials