I currently have the builders in converting my cellar into a home cinema room, they have actually been here the past two weeks but i have been a bit too busy to post the progress. I am having the cellar tanked and was going for the Sika system but when i removed the bitumen floor covering that was covering the original brick floor there was a lot of water coming in and the original builder didnt think that the Sika system would be suitable so pulled out of the job. I have now gone for the cavity drainage membrane due to the water problem, we have since found out that the water problem was a neighbours broken sewage pipe, which has now been repaired. The room is about 11 feet by 11.5 feet with a smaller room next door to this, which will be a store room. Here are some pictures of the progress, i will post more as more work is done.