DB loss through a fire door

miajanjua · 4 Jun 2007

I am installing a sounder (98db@1m) outside a room 0.6m from the door to the room.

I need to calculate the db at the bedhead in the room, 4 to 5 meters from the door.

Can anyone please help?

breezer · 4 Jun 2007

if you dont, some one will

lvsystems · 4 Jun 2007

As breezer said buy a sound level meter relatively in expensive 40 pound or so from maplin last time I checked. There are too many variables involved to just take a guess at sound levels

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DB loss through a fire door

miajanjua

breezer

lvsystems

DIYnot Local

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