Before the mention of electric drums
I know I will not be able to achieve fantastic isolation as my proposed studio / drum room is in the loft / attic of my home, and yes I do play an electric kit but when I want to play my acoustic kit I figure I owe it to my neighbours to at least try some sound isolation measures, as currently my neighbours side are quiet.
So in trying to think this through some more I have put together some sketches of the existing structure and a sketch indicating proposals. Following a quick read of Rod’s Book and helpful replies from DanDan and others who have answered some of my posts I hope I am in general on the right track.
I have some questions that arise… apart from my ignorance of this subject and life in general
as there is a big diff between reading a book and understanding, anyway
so once you all stop laughing at the sketches…
Regarding my sketch showing Proposed Details 1
Question 1) Rod’s book mentions that there is no advantage in using resilient channel with a true double wall assembly. I am assuming that my proposals may not present a ‘true double wall situation’ so in my case the use of resilient channels would be advantageous, is this correct?
Question 2) Pending the answer to Question 1, If I can find a resilient channel / iso-clip system that I can afford, and one that can support the loading. I am correct in assuming that three layers of plasterboard would be more beneficial than two for both of the plasterboard mass layers proposed?
Question 3) Again pending answers to the above - Note in my sketch the timber support walls have a plywood face to aid their structural stability. I am unsure if adding resilient bars to the face of the ply is correct as this may induce the smaller air gap to act like a spring and transmit the sound easily ? This therefore brings up further questions:-
a) Would I achieve a better result if I did not use resilient channels at all and faced the front of the main roof rafters with plywood then fixed two or three layers of plasterboard straight on top of the ply, then repeat this sequence in the proposed inner room OR b) remove the ply from the timber support wall and insert horizontal timber struts between the vertical timber to give structural strength and use resilient bars.