Browse Forums Flooring & Floor Covering 1 Apr 03, 2011 8:57 pm We've want to put timber flooring on top of our hebel floor. Where hebel sheets are connected there are bits of glue (2-3mm at the most). We've been told that using 12mm plywood under timber flooring would sort out the unevenness issue. However, this will Create a lot more work and will obviously cost more. Do you think it is worth it? Should we get a nailer or just use a hammer? How much glue do we apply in order to make sure there is no noise later on? We are using a direct stick method downstairs as we don't like any movement... Has anyone done this before? Should plywood be installed before screeding or will it be sufficient if we just let the Tiler know that we are having 12mm plywood and xxmm timber? Re: Plywood under timber flooring - is it worth it? 3Apr 09, 2011 6:24 pm What are the hebel sheets? Something you put over the slab (and why)? Looks like the timber will go on the ground floor (not the first floor)? How thick are the floor boards? Officially, you shouldn't use 12mm ply with timber that is over 12-14mm thick or so (but people still do it). Are you DIYing this? I don't quite understood what the situation is ... My signature is distracting people from my wise posts ... Re: Plywood under timber flooring - is it worth it? 4Apr 09, 2011 10:22 pm Hi Lex We've got hebel powerfloor upstairs instead of particle board that most people use. Re: Plywood under timber flooring - is it worth it? 5Apr 09, 2011 10:24 pm What thickness plywood should be used with timber thicker than 14mm? Or no plywood at all? Re: Plywood under timber flooring - is it worth it? 6Apr 10, 2011 9:54 am 15mm is the minimum. I think 15 is OK even for full timber 19mm boards. So, if you are having hebel on the upstairs (instead of particle/b) and if you want to install 19mm timber floor upstairs over the hebel, I wouldn't think that you need ply in between. However, take this as opinion only because I don't know how hebel looks & feels like and what is it made of and what characteristics it has. Our p/b upstairs had some gaps (even some 5mm gaps) and we still installed timber right on top of it (no ply in between). The one thing I'd ensure is to choose the appropriate direction into which to install the timber boards. My signature is distracting people from my wise posts ... Re: Plywood under timber flooring - is it worth it? 7Apr 10, 2011 11:56 am Thanks for that Lex We were hoping to get away without having to put plywood underneath, but because of the excess glue used to connect the hebel panels we were told we should put plywood to eaven out the surface. Either that or sand the glue down. But plywood is appearently the recommended way Wish there was an easier way out Re: Plywood under timber flooring - is it worth it? 8Apr 10, 2011 12:37 pm You mean that the '2-3mm at the most' of the glue is protruding upwards and that would be "in the way" for timber floor? I honestly doubt it, unless you are installing very thin floor. How thick will be your boards? Actually, how wide and how thick? My signature is distracting people from my wise posts ... Re: Plywood under timber flooring - is it worth it? 9Apr 10, 2011 1:37 pm That's correct
Will be going for 19mm thick and 85mm wide. Do you think we should be able to get away with it by using more/less glue in some places? Re: Plywood under timber flooring - is it worth it? 10Apr 10, 2011 8:05 pm Well, first of all, you know that I am not a pro, this is just my opinion and experience with own floor. My constraint here is the hebel sheets, as I don't really "know them" . So, assuming that they can be nailed into and glued onto, I am wondering why don't you go for the usual method of secret nail and glue? Anyway, if you are set on using glue only, I'm sure there are good reasons for it. I would use Bostik Ultraset. For the protruding glue - just a thought - have you tried to scrape off the worst parts with a stanley knife or something similar? But I seriously doubt that it would present any issue whatsoever. We ended up slightly sanding our board edges (even after the builder did it), but maybe we didn't need to. The 19mm boards are strong and heavy and not much shows underneath them. I think it's good you are using narrower boards. My signature is distracting people from my wise posts ... Re: Plywood under timber flooring - is it worth it? 11Apr 30, 2011 10:53 am Thanks Lex. Turns out that the top floor will need to be sanded afterall Re: Plywood under timber flooring - is it worth it? 12May 01, 2011 10:38 pm From what i have seen of heble it is very uneven you may have trouble with levels. With the glue you should be able to scrape it of easy dont bother nailing into heble it is airated concrete you can push a nail in with your hand it doesnt hold glue is the only option but i would check with the manufacurer of the glue to see if it will hold as heble is very dusty and the glue may not stick great. Jimbo73 I would use heaps of adhesive on each sheet and screw rather than nail. use as many as you like cheers Simeon 1 4064 Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 15908 In fairness nobody gave a crap about the ACCC and the gag clauses continued in the pro forma templates of a few other builders after the ACCC took on Wisdom, and more… 19 73474 |