Browse Forums General Discussion 1 Apr 24, 2017 6:24 pm Hi everyone, I'm new to the forum and have a few questions related to raised/suspended concerete slabs. We are building a single storey extension that will be built approx 6 feet above ground to line up with the existing floor level. We have requested for the design to include polished concrete floors with in-floor heating (preferably hydronic). My wife is VERY concerned about cracks appearing in the concrete over time. Does anyone have any experience on this topic? Is this a valid concern? Any good/bad design options available? Many thanks in advance. Re: Suspended Concrete Slab with Hydronic Heating 2Apr 24, 2017 8:55 pm TB23 have it designed for max shrinkage control (steel) , good vibration/Trowel/finishing work & curing Make sure the engineer supervises quality control of the concrete pour and does a slump test. Since low slump concrete becomes difficult to work as time goes on you will need twice the amount of labour for placement, vibration ,Screeding & Floating.. goodluck Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Suspended Concrete Slab with Hydronic Heating 4Apr 25, 2017 6:43 pm Thanks for the info guys. I'll certainly discuss all those recommendations to the builder. Has anyone had any positive or negative experiences with particular 'brands' i.e. Ultrafloor etc Re: Suspended Concrete Slab with Hydronic Heating 5Apr 25, 2017 7:41 pm TB23 Thanks for the info guys. I'll certainly discuss all those recommendations to the builder. Has anyone had any positive or negative experiences with particular 'brands' i.e. Ultrafloor etc Are you wanting a precast slab? Re: Suspended Concrete Slab with Hydronic Heating 6Apr 25, 2017 8:00 pm I've been advised that the most cost effective way is Ultrafloor or a precast slab system that then gets a 'top coat' with the hydronic pipes embedded. I am open to all options though. Thoughts? Thanks in advance. Re: Suspended Concrete Slab with Hydronic Heating 7Apr 25, 2017 8:13 pm Our slab is on fill, although our deck slab is suspended. We too are putting hydronic pipes into a top coat for some of the slab, so that can be done on whether precast or in situ. That said, I'd go what your engineers or builder has suggested. Does anyone have a suggestion for a good hydronic in slab heating speacialist who may be able to help me with an existing system and wether or not it may need a seperator… 0 4880 Fair Trading can issue orders to rectify and complete but once the matter goes to NCAT these orders are automatically vacated. You will have to terminate contract and sue… 21 29708 How are you doing Ben? Extremely interested in hearing what you are doing or plan to do! 12 15135 |