Browse Forums Flooring & Floor Covering Re: underlay for solid timber floors on concrete slab 3Mar 29, 2010 9:33 am ... built a Promenade with Clarendon. viewtopic.php?f=31&t=25104 20-10-09 - excavation and piering completed ... 12-04-10 - Basins fixed. Connecting to the electrical grid 23-04-10 - PCI 07-05-10 - HANDOVER! Re: underlay for solid timber floors on concrete slab 8Mar 29, 2010 3:25 pm erz Thanks for the replies. From what I gather, Direct stick seems to be pushed as a cheaper installation method. Although one installer said he would charge me the same as he would use less glue if he nailed plywood to the concrete as an underlay. This sound right? He also suggested if I go with 12mm plywood, I should for 19mm floorboards. I was also told that putting a plywood underlay onto the concrete would make it feel more like walking on floating floorboards. An Extract from ATFA Timber Flooring Manual V2: Quote: Fixing recommendations - plywood sub-floors to concrete slabs and flooring to plywood Plywood sub-floors should be structural grade, a minimum 15 mm thick and with a type A bond. Plywood 12 mm thick in also used by floor installers but with this thickness greater consideration needs to be given to slab evenness and the possible perforation of moisture barriers beneath the plywood. Quote: Would anyone have any recommendation on a place to purchase the timber? Do your research. I sourced mine from North River Timbers. There are should be plenty of good suppliers. ... built a Promenade with Clarendon. viewtopic.php?f=31&t=25104 20-10-09 - excavation and piering completed ... 12-04-10 - Basins fixed. Connecting to the electrical grid 23-04-10 - PCI 07-05-10 - HANDOVER! Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 15924 Hi l plan to install a self adhesive vinyl plank floor. l first need to attach masonite boards underlay to by plywood subfloor of my house. What size nails and how many… 0 8379 Jimbo73 I would use heaps of adhesive on each sheet and screw rather than nail. use as many as you like cheers Simeon 1 4074 |