Re: I need some PROFESSIONAL help with Home on top of slab
If you can bear to have your floors 1 or 1+1/2" higher, you can lay radiant heating pipes (PEX) and overlay with a lightweight concrete. It can even be stamped and stained, if you want the concrete to be the finished surface. To improve efficiency, you could put an insulating layer -- perhaps that thin, mylar-faced "bubble wrap"-type stuff -- under it all. The concrete mix must be engineered for this purpose; you will not get good results with a bag of general-purpose redi-mix from the big box store.
The pipes will circulate hot water from a boiler. I think this would be called an in-floor hydronic heating system.
A few adjustments will be required for this method: doors may need to be trimmed or raised; cabinets will need to be removed and reinstalled at the proper height, and toilet flanges will need to be extended. If your local building inspector isn't familiar with this process, you may have an uphill battle convincing him/her that it's safe, viable, and meets building codes.
P.S. -- I'm not a PROFESSIONAL in that trade, so please forgive my AMATEUR advice.
Last edited by Fencepost; 05-14-2014 at 04:17 PM.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.