Hi to everyone
I have a doubt, to overlap two 5 cm (2 ") panels has the same effect as a single 10 cm (4") panel? Knauf says no, density varies (?), Why?
thnx
overlap porous absorber panels
Originally posted at johnlsayers.com, topic 22140.
Of course it cannot be precisely the same, but two 2" will be very very similar to a 4"
DD
Also in my mind, but Knauf say no (without explanation..)