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Bathroom flooring plywood

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By *tu_b_man OP   Man
over a year ago

Nottingham

Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

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By (user no longer on site)
over a year ago


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?"

Do you like my new nail varnish?

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By (user no longer on site)
over a year ago

I put thinner ply than that down in flats so I'd say it's probably fine

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By (user no longer on site)
over a year ago


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

Do you like my new nail varnish?"

LOL

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By (user no longer on site)
over a year ago

It'll be fine

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By *LIRTWITHUSCouple
over a year ago

Chester


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?"

It's a swinging site

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By *radleywigginsMan
over a year ago

northwest

Don’t think it needs to be marine ply. I reckon any old ply will do

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By *he Queen of TartsWoman
Forum Mod
over a year ago

My Own Little World


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

It's a swinging site "

It's the Lounge, anything goes

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By (user no longer on site)
over a year ago

Marine ply in a bathroom is a sensible precaution as it's more moisture resistant. Depending on what jointing you use there is always the possibility a little moisture might get through. The last time I had a fitter lay tiles on a 18mm chipboard floor he lined it with 9mm marine ply.

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By *ficouldMan
over a year ago

a quandary, could you change my mind?


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?"

Don't forget to seal both sides of the ply and all cut edges.

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By (user no longer on site)
over a year ago

Google it my friend, Google knows everything XXX

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By *tu_b_man OP   Man
over a year ago

Nottingham


"Marine ply in a bathroom is a sensible precaution as it's more moisture resistant. Depending on what jointing you use there is always the possibility a little moisture might get through. The last time I had a fitter lay tiles on a 18mm chipboard floor he lined it with 9mm marine ply."

As it’s directly onto the joists it won’t have anything underneath.

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By *ayandpCouple
over a year ago

Plymouth


"Google it my friend, Google knows everything XXX"

Is your underfloor electric mat

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By *tu_b_man OP   Man
over a year ago

Nottingham


"Google it my friend, Google knows everything XXX

Is your underfloor electric mat "

Yes that’s right

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By (user no longer on site)
over a year ago


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?"

staple chicken wire to the ply so the tiles have something to grip too and flexibilty so they dont crack

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By *rMrsWestMidsCouple
over a year ago

Dudley


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?"

Should be fine, put a perimeter noggin in and another row of noggins on the joints. It's worthwhile putting some polyurethane glue ( bit like expanding foam but a glue) on top of the joists and then lay the ply on top, helps to prevent squeaks and makes it a lot stronger, standard practice these days. Mark position of pipes on ply to prevent screwing through them, better safe than sorry.

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By (user no longer on site)
over a year ago


"Marine ply in a bathroom is a sensible precaution as it's more moisture resistant. Depending on what jointing you use there is always the possibility a little moisture might get through. The last time I had a fitter lay tiles on a 18mm chipboard floor he lined it with 9mm marine ply.

As it’s directly onto the joists it won’t have anything underneath."

I think that would be fine, a single 18mm ply. It's way stronger than chipboard.

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By *tu_b_man OP   Man
over a year ago

Nottingham


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

Should be fine, put a perimeter noggin in and another row of noggins on the joints. It's worthwhile putting some polyurethane glue ( bit like expanding foam but a glue) on top of the joists and then lay the ply on top, helps to prevent squeaks and makes it a lot stronger, standard practice these days. Mark position of pipes on ply to prevent screwing through them, better safe than sorry. "

Gorilla glue? Pop this onto the tops of the joists before laying the ply down and fixing. PM if it’s easier to explain. Thanks.

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By (user no longer on site)
over a year ago

Screw down every 1200 with glue on joists. Then you heat mat then chicken wire then flexible adhesive for tiles. Grout then let it set for a few days then if you can turn heat on low and raise it a couple of degrees every few hours.

I'm a builder. If its ply onto floor boards then glue and every 600 for screws. Make sure floor boards are sound first

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By (user no longer on site)
over a year ago

Your on fab OP....and you want to talk about wood

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By *rMrsWestMidsCouple
over a year ago

Dudley


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

Should be fine, put a perimeter noggin in and another row of noggins on the joints. It's worthwhile putting some polyurethane glue ( bit like expanding foam but a glue) on top of the joists and then lay the ply on top, helps to prevent squeaks and makes it a lot stronger, standard practice these days. Mark position of pipes on ply to prevent screwing through them, better safe than sorry.

Gorilla glue? Pop this onto the tops of the joists before laying the ply down and fixing. PM if it’s easier to explain. Thanks."

Yes put it on top of joists and then put ply on and screw it down. Screwfix do a polyurethane glue ( code- 44485) it foams up and fills any gaps, much better than PVA.

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By *LIRTWITHUSCouple
over a year ago

Chester


"Your on fab OP....and you want to talk about wood "

Never waste good wood

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By (user no longer on site)
over a year ago

Also when using the tile adhesive if it's Larsen made then when mixing please please use a good dust mask. Hubby used it 5 weeks ago and machine mixed it outside he is still coughing his lungs up because it contains lime and has burnt his lungs and didn't have his mask on

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By *tu_b_man OP   Man
over a year ago

Nottingham


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

Should be fine, put a perimeter noggin in and another row of noggins on the joints. It's worthwhile putting some polyurethane glue ( bit like expanding foam but a glue) on top of the joists and then lay the ply on top, helps to prevent squeaks and makes it a lot stronger, standard practice these days. Mark position of pipes on ply to prevent screwing through them, better safe than sorry.

Gorilla glue? Pop this onto the tops of the joists before laying the ply down and fixing. PM if it’s easier to explain. Thanks.

Yes put it on top of joists and then put ply on and screw it down. Screwfix do a polyurethane glue ( code- 44485) it foams up and fills any gaps, much better than PVA. "

I think this stuff that you are recommending is the same/similar to gorilla glue right? My joiner has some of that if that’s any good?

Can you PM my please so I can ask you some stuff please?

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By *rank n BettyCouple
over a year ago

Not meeting


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?

Do you like my new nail varnish?"

Ooooohhh what colour? I’ve gone gunmetal & glittery

B x

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By *unloversCouple
over a year ago

rotherham

Just cos it’s a swingers site people can still chat about anything as it’s a chat forum

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By *BGlosCouple (MM)
over a year ago

Cotswolds


"Is 18mm marine ply ok to screw down on a bathroom floor to the joist prior to tiling the floor? Noggings at 400mm and under all joins too.

I have 22mm floorboards running up to it so I figure that once electric UFH, adhesive and tiles are added it’ll be about the same level as my landing carpet.

What do you think?"

Totally OTT I think using Marine ply, unless you are getting it at a decent price, if your supplier knows what you are using for, they will probably pick out there best boards and put a marine ply stamp on it. I have worked in a wood yard and seen someone do it. I used to collect and deliver plywood years ago.

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By *tu_b_man OP   Man
over a year ago

Nottingham


"Just cos it’s a swingers site people can still chat about anything as it’s a chat forum

"

Agree. I figured it was a lounge for chat. Thanks for saying it xx

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By *p for fun 250172Couple
over a year ago

hull

No dont use plywood the grout will fail in a few years,use nomore ply tile backing boards

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By (user no longer on site)
over a year ago

Usually 22mm on joists or 9mm on top of existing a floor boards

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