Good Evening All and Hi from the UK HELP!!! First of all may i say thanks for looking at this thread and any information shared will be greatly received. I came across this website after purchasing Mr Gervais excellent book and before i decided to post a new thread i searched after some info i required but couldn't seem to find what i'm looking for so here goes. Get yourself a strong coffee before reading on. GOALS To construct a combination room for music production, mixing/mastering and dj mixes ideally to a good soundproof and acoustic standard. BUDGET Looking to spend around £2500 - maybe more depending on the improvement. HOW LOUD Ideally looking up to around 100db but only have the capability to do this as i won't be able to produce/mix/master at this level for a long enough time. DETAIL The room will be constructed inside a single brick garage, this has an apex roof which is supported by beams and on top of the beams the space is used for storage. The front half of the garage will be used for storage and gym equipment and the rear half for the studio. The garage door is a metal up and over door which cannot be bricked up or removed due to planning issues. The flooring is a solid concrete base The size of the room for the studio before any construction begins. Width 284cm (9'4") Length 281cm (9'2") Height to beams 231cm (7'7") THE QUESTIONS I know one of the main issues I'll have to deal with is the garage door so looking at building a double wall with a considerable air gap but any other ideas will be appreciated. I've been looking into soundproofing for a while now and there is so much information out but for me Its a choice between a room within a room or using resilient channels and genie clips system. I'm also contemplating using 1 or 2inch celotex on the walls which is a foil backed insulation straight on the walls prior to the build just to keep the heat in the garage. Room In A Room I understand building a room within a room decouples the build from the main structure so roughly how much of an air gap would you leave. I have planned on using 100mm rockwool, is this too much also i know it sounds silly as its all new to me but if you place the rockwool between the stud wall then what stops it falling out the rear into the gap between the room and structure. Do you have to place anything like strapping. Resilient Channel System This seems a really good idea due to the amount of space it saves. This will be used also on the ceiling and to do this I will need to create a stud wall and fill between the studs with acoustic mineral wool and insulate the studs against the wall with isolation strips to stop vibration from traveling through the timber studs or build away from the main structure to create an air gap. This version also uses our Genie Clips with Resiliant bars and adds a layer of 4mm Mute Barrier mat between two standard plaster boards for extra sound insulation. The downsides with this are firstly cost compared to room in a room. If you build the room against the main structure wall and the rockwool goes against this then surely it will get damp. Another thing I don't quite understand why you also build it away from the main structure with an air gap as surely the rubber genie clips also decouple the walls. I know there is alot here so any information to say which do you think would work the best or any previous experience using these would be of great help. Ventilation Just a quick question do you have to use air con in an air tight studio?? Can the below be used with just a standard heater during cold spells. I'm asking for alot here and hopefuly with all the experience and knowledge on this forum some of the questions will be asked. Thanks again Drew.