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HELP!, roof/ceiling venting plan, is this an isolation disaster?

I am having a back garden practice/recording cabin built. Structure will be (from outside to inside)

Concrete base with DPM
timber frame (total area 4x5m)
OSB with 18 mm shiplap cladding
4x2in wooden studs
100mm RW3
2 layers of 15mm acoustic plasterboard.

OSB covered with EPDM

Adjustable reflective ceiling

I'm building a live room for my studio. The room is a former bedroom and the dimensions are not ideal. (8'2" H x 12'1" x 12'9 1/2", plus a small alcove that was a closet with bifold doors. Doors have been permanently removed.) I do have the ability to completely rip it apart and rebuild it, but due to budget constraints, that will have to wait. For now, I'm working with what it is.

Primacoustic Nimbus Ceiling Cloud - Anyone Have One?

I was looking at these ceiling clouds by Primacoustics...they measure 24 inches x 48 inches x 2 inches

Perfect for the area I want to cover above my mix position

Has anyone out there had any experience with or used / currently using this one?

What attracts met to this particular one is not only the size, but its lightweight construction and ease to fit.

Ceiling reflector/diffuser treatment project (Australia)

Hi, here are a couple of pictures of my recent ceiling treatment project. My recording/rehearsal studio was too dead, and I decided to install some reflectors/diffusers to liven it up a bit.
A full writeup, including some sound samples, is at

Having trouble with low ceilings and vocals.


I moved my entire studio into a bedroom that has really low wood ceilings (7-8 feet). My vocals and acoustic guitars seem to have a lot of bass. I'm using a RODE ntk. Do you think I should move it to an area where there is vaulted ceilings? The room its in now is probably the quite room in the house. Would using an eq fix the problem?


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