For questions generally relating to the structure and construction of floors in buildings, including designs, materials, support mechanisms, load-bearing calculations, etc. For questions specifically about the top-layer covering of a floor (tile, carpet, hardwood) see the "flooring" tag.

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4
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5answers
7k views

How should I prepare a plywood subfloor for floating vinyl plank flooring?

The floor of my laundry room was three layers of hideous vinyl flooring of various vintages, a layer of 3/4" plywood underlayment (to match the height of the vinyl to surrounding hardwood flooring) ...
4
votes
4answers
263 views

Why does my basement floor paint come off when it's wet?

I painted my basement floor and now just 3 weeks later my washer leaks and the paint is peeling off. I also put some water down on a spot and when I wiped it up you can scratch the paint off. It is ...
2
votes
2answers
158 views

What kind of screws are used for plywood subflooring?

I have removed the old bathroom lino and cleaned the parts that adhered to the floor. I want to screw down the existing plywood subfloor because the nails are old (45yrs) and sparse. What kind of ...
1
vote
2answers
50 views

Finishing basement… level floors with SLC or install stud wall first?

Basement floor isn't too far off... wondering if I should get the stud wall done first or level the floor first....
3
votes
1answer
40 views

How do I remove wax or Mop-and-Glow from Pergo floors?

How do I remove wax or Mop-and-Glow from Pergo floors?
2
votes
1answer
60 views

How can I level and finish a slanted deck that was enclosed?

Hello everyone I am new to this so I apologize if I seem a little slow mentally. I have a 104 yr old home that at one point had a deck that was completely enclosed. my issue is that the floor was ...
2
votes
1answer
41 views

Is there a better method for fixing UPVC floor trim to skirting, other than the adhesive tape provided?

Can anyone recommend a better method of fixing UPVC (e.g. Homelux) floor trims to skirting other than the adhesive tape provided? Can you mechanically fix them or is it just down to adhesives?
2
votes
1answer
457 views

How can I repair a crumbling shed base?

I think I know the answer to this already but its worth a punt. I laid a 4mx3m shed floor (clearly badly), with about 10 cm of hardcore and 7.5cm of cement, that whilst in the middle appears fine, on ...
1
vote
1answer
119 views

Insulating and reducing boominess of plywood subfloor

I have a plywood subfloor in a ground floor extension that is laid directly on the joists. The current floor is half solid wood tongue-and-groove laid on top of green fibre underlay and half fake ...
0
votes
1answer
99 views

Need help leveling part of a floor

We had an 8 foot square hottub in our bedroom for 10+ years. Because of the weight, the floor has sagged in that section. The tub is gone now and we had carpeted around it, but now there is a big ...
3
votes
0answers
68 views

Small geyser coming out of the basement floor

My house is 40 years old. I have had basement flooding issues for years. With heavy rain, water comes out of my floors. I have a sump pump that takes care of it. Despite knowing better, Ive been able ...
2
votes
0answers
44 views

Floor Makes Metal Clang When Walked On - One Room

We have a 3 bedroom, 2 bathroom house. The whole house has hard-wood flooring. One bedroom on the corner of the house has a floor that sounds hollow... When walked on it makes a loud clanging sound... ...
1
vote
0answers
32 views

How should I deal with old black mastic before installing floor tiles?

I will be removing wood floor tiles that wee installed over old VCT tile which have black mastic on them. I can remove the wood and VCT with no issues, but I do not want to have to remove the old ...
1
vote
0answers
28 views

Where should I put the transitioning from tile to laminate with open floor plan?

I have an open floor plan in my house. The house is about 25 years old and the same white glossy tile was used in the living room, dining room and large kitchen. The tile looks decent in the living ...
1
vote
0answers
101 views

How to repair straight cut floor joist?

What's the best way to repair a cut floor joist? It looks like when removing floor boards for remodel, someone has cut about half way through the top of joist with saw straight cut. No notching. I'm ...
1
vote
0answers
43 views

laminated flooring vs OSB

I'm considering the option of using OSB(10mm+ thick) in stead of laminated flooring, the floor is currently just concrete, on top of which there's linoleum on top of which there's a carpet. What I'm ...
1
vote
0answers
62 views

What can I do to fix water coming up from floor drain?

This vertical pipe is connected to the kitchen sink above and the utility tub in the basement. When the utility tub is used, the drain in the floor is backing up. If the sink is run upstairs it ...
1
vote
0answers
148 views

How can I edge concrete without an edge trowel?

How can I make a concrete floor (also using dry shake color hardener) with a proper edge, without using an edge trowel? In Brazil I cannot find an edge trowel anywhere, so I would like to know if ...
1
vote
0answers
109 views

Will I have any issues installing an in-floor heating mat with premix mortar?

I installed a radiant floor heating mat under ceramic tiles using a premix mortar. I now understand this was not the right thing to do. After further research the only reason I can find that suggests ...
1
vote
0answers
126 views

How should I waterproof a replacement shower floor?

I have to replace the tile floor in my shower because of mold. What should I use to waterproof the floor and turn up the wall?
1
vote
0answers
366 views

How can I stop water from coming up through the floor?

I have a house that is on a high water table, and water is coming up through the floor. The property was excavated around the perimeter a couple of years ago and installed a new Big "O". Drycore was ...
0
votes
0answers
12 views

How to install bathtub

I want to install a tub on basement bath where drain pipes are already installed and sticking out from concrete floor. I need to know how to raise the level of the tub from the floor in order to have ...
0
votes
0answers
33 views

Thin plastic floor covering

I have laminate flooring coming right up to the base of an external door. This door gets a lot of footfall, and has started to wear the top surface of the laminate where it meets the base of the door. ...
0
votes
0answers
16 views

Lay floor tile on exixting adhesive

I just removed the floor tiles in the kitchen. Now I have tile adhesive on the hardboard floor which i am struggling to remove. Could i just lay new tiles with extra flexible adhesive on existing ...
0
votes
0answers
23 views

basement flooring

I would like to put a floor in my basement. my idea is to put 3&1/2 squares of 2x4 material on the concrete with 2x4 sleepers on top and all covered with plastic(vapor barrier) now I would put 5/8 ...
0
votes
0answers
40 views

Transition laminate with t-molding to tile

I need to transition where the laminate is higher than the tile. The laminate is 12mm so the tile is about 1/8" below the laminate. I have t-molding and metal track but there is a gap on tile side. ...
0
votes
0answers
32 views

metal flexing sound from 2nd floor

I bought my home 6 months ago. When we moved in last summer, we didn't hear this sound. Now when I step on particular spot on this one bedroom, I hear metal flexing sound. I am guessing the duct is ...
0
votes
0answers
37 views

Can i replace the existing screed on concrete slab with floor insulation and electric underfloor heating?

Can i replace the existing screed on concrete slab with floor insulation and electric underfloor heating ? Standard screed thichness is something like 50 mm to 80 mm or so. My idea is to replace the ...
0
votes
0answers
18 views

renewing a heated bathroom floor

I heard there is a material that works great for renewing a bathroom floor which has a heating system integrated. We would like to give a new shine to ours but we don't want to break everything. I've ...
0
votes
0answers
57 views

Self levelling concrete as primary floor?

My kitchen currently has a concrete floor with a bit of underlay and then some funky blue vinyl on top of that. A new kitchen is going in Q1 this year and I'd quite like the look of concrete floors. ...
0
votes
0answers
26 views

Tile vs cement polish

We have unfinished basement. Years ago when we gutted, we put down a layer of dry lock on the walls & floors because that's what we thought was protective. We've never had water come in thru floor ...
0
votes
0answers
61 views

Which should I do first? replacing furnace or resurfacing concrete floor?

I'm going to get two things done in my basement soon (by hiring professionals), but I'm wondering what the right order of operations is. One task is to replace the gas furnace that sits near the ...
0
votes
0answers
54 views

Raise cupboard floor (under stairs)

We have a 1930s terraced house in London (UK) with a small cupboard under the stairs, its floor space is about 80cm x 190cm. The floor of this area is around 80cm lower than that of the hall that runs ...
0
votes
0answers
360 views

How can I remove self-leveling substance and glue from my floor?

I removed approx. 30 yrs old linoleum from a room that is 6 by 10 meters. Now I have a hard time removing the glue and self-leveling compound which are stuck to the floor. From what I can tell, both ...
0
votes
0answers
30 views

How can I prevent condensation under vapor barrier on a 1st floor room with flooring?

We bought last year an apartment of the 1st floor. The building has garages and utility rooms right under our level and the two bedrooms face north. One of the bedrooms has actually an external wall ...
0
votes
0answers
36 views

How do I seal an existing concrete floor before patching it?

We are patching an old concrete slab and we are having a problem with the glue or concrete seeping through small cracks onto the floor below. Is there something I can seal it with before we pour?
0
votes
0answers
58 views

How should I install a tongue and groove subfloor over ceramic tiles?

I am really new and not sure what I am doing to be honest. I am laying down a t&G subfloor over ceramic tiles to protect them(I am leasing a store front, owners would like to keep the tiles ...
0
votes
0answers
756 views

Leveling basement floor while keeping it sloping to the drain?

I am having similar problem with the basement slope being exceptionally steep around the floor drain (similar to this: How do I level a basement floor but not the slab underneath?). The discussion ...
0
votes
0answers
62 views

Does this black subflooring need to be replaced?

I'm working on replacing some laminate in my bathroom with tile. I ripped up the laminated and the particle board (which was black near the bathtub) the subfloor underneath appears to be black as well ...
0
votes
0answers
40 views

Brown Tile Floor Turned White

Living an older home with tile floors. Someone said I should clean it with mix of vinegar and water. I was actually cleaning a cabinet and spilled some of the vinegar and water solution and it has ...