Re: Designing common house
From: Philip Proefrock (
Date: Fri, 15 Feb 2013 11:10:51 -0800 (PST)
As described, this sounds like a fire hazard that would not meet
American building code requirements, but I could be wrong about that.  I
would be interested in seeing a picture of it to see how this was installed.

Philip Proefrock, AIA

On 2/15/2013
> From: "Robin Allison" <robin.allison [at]>
> The common house dining room at Earthsong Eco-Neighbourhood uses a very
> simple, cheap and effective system for reducing the noise. We have a high
> cathedral ceiling over the dining room, lined with narrow timber battens
> nailed direct to the rafters over hessian (sacking fabric), with gaps
> between the battens. This allows the noise to travel through the hessian and
> be absorbed by the thermal insulation between the rafters. This looks great,
> and is so effective that even with 60 people dining and talking, it is a
> pleasant acoustic environment. And yet it is still fine for musical
> performances etc, which require more acoustic "brightness". 
> I'm happy to send a photo to show what it looks like - email me direct if
> you'd like one.
> Cheers
> Robin Allison
> Earthsong Eco-Neighbourhood
> Auckland, New Zealand

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