Levelling/flattening floorboards for engineered wood

Your relying on a 3mm fixing. If you have seen the ply we have to use you wouldn’t want to use 3.5mm ply either


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is there a way to ‘test for leaks’ before I pour SLC over my entire first floor?

Is it worth doing it in one go or room by room (and if so, how do you delimit them)?

 

Do I need a primer to apply to plywood before pouring self levelling compound over it? If so, which one?


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I haven't bought it yet; I was thinking about Mapei Ultraplan which is available at ScrewFix

If I do it room by room, how do I make sure I get them all at the same height?

 

Don’t use ultraplan over wood it’s not suitable.


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https://www.screwfix.com/p/mapei-ultraplan-3240-self-levelling-compound-25kg/4959f?_requestid=684094

Fibre-reinforced self-levelling compound. For use on new or existing concrete, screeds, stone, ceramic tiles, old and new timber floors, parquet and plywood. Covers approx. 6m² at 3mm thick.

 

That’s renovation, it’ll be fine but work off around 4-5m2 not the stated 6m2 those claims are based on ideal conditions. I would advise you to get a professional to do it though, it takes practice and the right tools the cost of both is more than paying someone to do it correctly.


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How much money are we talking about?


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Far less money than when you make a mess of it and come back asking for more advice on how to save cost.
You have Fit it once and found it’s incorrect as too much bounce.
Stop trying to cut corners and ask for advice on a professional forum
If you don’t want to pay for the prep for your wood floor go down the route of an LVT which will follow the movement.

 

I meant when asking for advice on a professional forum .... typing error

 

Surely I won’t pay someone to fit my click-fit floor.... and surely I won’t throw it in the bin to buy Luxury vinyl....

The only thing I would pay for is the levelling, which is the topic of this discussion...

 

Phone round and get some quotes then as if your floor is as bad as you say the likelihood is you wont get it to tolerance, and then have to get someone in anyway, pay for a pro to come in and sort it for you

 

I've found one of the biggest issue is when someone comes on the forum asking for advice yet when given it by the pro's they seem like they already have made their mind up anyway. We dont try and put you down saying you are not competent to do the work yourself but some still see it as a dig...

It's easy to sling some ply down and flood it with screed and make it look fantastic but it's the 'level' that is important so it allows your floor covering to sit as flat as possible.

 

....and then when it comes to fitting it may seem a doddle on paper but you get to say the last row and some make a right balls up out of it, cutting in architraves/undercutting architraves etc, joining between doorways.....list goes on.

All we want to do is advise you how it should be done, I doubt a diy'er will have the 'tools to make it easier' either. No good trying to make do, you might be happy with the end result like slapping silicon around an architrave but there can be far better results when its left to a 'proper professional'

Who are we to say you are not capable of doing it yourself anyway, we just want to make it a straight forward job for you, so many little things that you wouldnt imagine you would come up against until you actually do then you struggle to make it the best result possible!

 

I have no problems in fitting the floor; I have done it before on a ground floor.

Of course I have cut under architraves and door ways as I have all the tools: multitool, mitre saw, circular saw

This is the result (see picture); I did not have to use any silicon and the only problem is that the subfloor is not level; of course I could leave it like that and it would be ok for most people, but I want a perfect job so I know that I just need a level subfloor, that’s the only advice that I have asked here

 

Wasnt saying you cant cut under doors etc, I was saying in general certain things some come up against they think it's easier in their heads but actually doing it they struggle. It was an example

Crack on!