Browse Forums Flooring & Floor Covering Re: Timber flooring without skirting 26Jul 28, 2010 4:39 pm Its not a change in timber moisture content at all - its the change in the relative humidity in the air. The relative humidity in a house can vary greatly - ten-fold more than 3% thats for sure. Re: Timber flooring without skirting 27Jul 28, 2010 7:45 pm Lex I'm still not clear as to what was done here ... Was this buckled floor installed without any membrane on the slab? Perhaps that would have helped? Were the boards directly glued onto the slab? or installed over battens or plywood? Also, what species of timber was that, if you can remember? There was a poly membrane put under the plywood base. Boards were secret nailed, and glued using bostik ultraset. 85mm boards, I can't remember the species. Re: Timber flooring without skirting 29Jul 28, 2010 8:26 pm Casa2 Sounds as if the concrete slab on ground didn't have a waterproof membrane beneath it. Doesn't effect it - there is a water-proof membrane between the slab and timber Re: Timber flooring without skirting 30Jul 28, 2010 8:28 pm Dukekamaya Casa2 Sounds as if the concrete slab on ground didn't have a waterproof membrane beneath it. Doesn't effect it - there is a water-proof membrane between the slab and timber So we're still left with the dilemma - what caused this floor to buckle? Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: Timber flooring without skirting 31Jul 28, 2010 9:22 pm The ATFA manual states high expansion as a common cause. So what caused high expansion? The manual says: "May be directly related to high humidity or other moisture issues. May relate to inadequate expansion allowance, poor ventilation or inadequate fixing." Could be an unusually high humid weather for a prolonged period of time. Was there a bad (humid) period? My signature is distracting people from my wise posts ... Re: Timber flooring without skirting 32Jul 28, 2010 9:28 pm Casa2 Dukekamaya Casa2 Sounds as if the concrete slab on ground didn't have a waterproof membrane beneath it. Doesn't effect it - there is a water-proof membrane between the slab and timber So we're still left with the dilemma - what caused this floor to buckle? Was the flooring acclimatised IN THE ROOM for a minimum of two weeks before laying? I bet not, this is a common cause of either expansion causing buckling or shrinkage causing large gaps Building Standards; Getting It Right! Is this acceptable in a new house build. Floors where installed by builder. Already chips in board and skirting is not flush 0 195 Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 15973 This certainly doesn't look good. I would be engaging with an independent inspector to have a look at this. As for the unscheduled site visits, most builders are quite… 1 28355 |