spitzer
New member
Hi
This is one really old debate to me, with an old friend. It's about a garage door and the question is about sound going out.
Which is the better choice: a) one REALLY thick layer (50 cm) of particleboard, or b) at least two layers, separated by an air gap or gaps?
I would even tend to think the isolation wall could be made to be thinner in total for the same reduction by using the air gap variant (not to mention the wall in question is the only way to get air in/out so you need to drill).
But I really simply don't know. Which one blocks the most dB?
EDIT: I guess I typed the "quick" question too quickly. What I'm referring to here is a LARGE door, so in effect it's an isolation WALL anyway. The basic question is still this. Which one: a) ONE thick, REALLY thick, isolation layer or b) two or more thinner layers.
This is one really old debate to me, with an old friend. It's about a garage door and the question is about sound going out.
Which is the better choice: a) one REALLY thick layer (50 cm) of particleboard, or b) at least two layers, separated by an air gap or gaps?
I would even tend to think the isolation wall could be made to be thinner in total for the same reduction by using the air gap variant (not to mention the wall in question is the only way to get air in/out so you need to drill).
But I really simply don't know. Which one blocks the most dB?
EDIT: I guess I typed the "quick" question too quickly. What I'm referring to here is a LARGE door, so in effect it's an isolation WALL anyway. The basic question is still this. Which one: a) ONE thick, REALLY thick, isolation layer or b) two or more thinner layers.
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