Frequently Asked Questions
Nailing pattern for luan over 3″ T&G boards?
I am laying down 1/4″ luan over my 3″ wide T&G sub-floor. On top of this I will be nailing down Brazilian Cherry hardwood flooring in the same direction the sub-floor boards are running. I am using ring shank nails for the luan and want to know what kind of nailing pattern I should be using. Should I be trying to nail through every T&G board, every other T&G board, etc? Also, should I be concerned about making sure my luan seems center over my floor joists or is this not as critical since I am using the luan to to simply keep my sub-floor boards tight together to keep the finished floor from separating?
I hope this makes sense. Thanks.
Check your sub-floor for squeaks first, you may have to add a few screws to tighten it up 3″ inch wide boards can work loose over time. Nailing 4″ apart is proper for 1/4″ underlayment, I would definitely recommend a 1/4″ crown flooring stapler, depending on how much you have to do. It is not necessary to use anything over 1-1/4″ long if nailing into 3/4″ boards, the extra length just sticks out the bottom. Make sure you lay down some type of paper before putting down the hardwood flooring, this eliminates the wood on wood squeaking as the floor expands and contracts, I generally use Rosin paper but some flooring manufacturers don’t recommend that type with their product. Hardwood flooring should be nailed every 5″-8″ with a “T” nail or something similar, there should be an instruction sheet in every box that will say the same things I just said, if you don’t follow their instructions, they have an easy-out on warranty issues.
Do we need a dehumidifier for our hardwood floors?
This past January, my husband installed BellaWood Brazilian Cherry 3/8″ thick, 2 1/4″ wide hardwood floors on our main floor. The basement and upstairs are both carpeted. Anyway, early this spring, we noticed one of the boards buckling. My husband cut it out and tried to fix it but now it doesn’t look so great. Anyway, now we are starting to notice some slight buckling in other places. We thought it could be humidity issues so we turned our air conditioning up ( We used to have it at 85 when gone and 78 when home) to 75 all the time. We purchased a thermometer when a humidity reader and during the day the humidity can fluctuate between 47 and 52%. Should we get a humidifier and try to lower the humidity to 40 or 45%? We don’t want to spend a lot of money if that isn’t going to work.
You may need a dehumidifier but those % sounds about right.. Caal or check w/ the place you bought it and they ll be able to give (or get) the specs from bella on what the average humidity should be kept at for any particular wood..Since you have an engineered wood , did you staple(nail) it down or glue it? You put the right amount of staples in it? You need staples every 6 inches for most eng wood and a staple w/in 3 inches of any ends..Hope this was of some help GL
Glue and screw or nail 1/4″ Birch subfloor?
I have a vintage home with 3″ wide T&G boards for my kitchen subfloor that run the same direction I want to lay a new Brazilian Cherry hardwood floor. I have height issues with the dining room floor and I don’t want to have to pull up the original subfloor to lay 3/4 plywood. What I have now is still real solid. I got advice to lay down some 1/4″ plywood (I think they said Birch) but forgot to ask how to secure it. I already have ring shank nails. Should I use those or glue and screw the plywood instead? This is a one man (me) job and I can imagine the glue would be a PITA to do by myself.
- So should I glue it?
- If so, what kind of glue specifically (brand, type, etc)?
- And is Birch the right wood to do this with?
Thanks in advance.
I always use 5/8 inch ring shank nails and I use a nailer.
This way I save my fingers and every nail is set deep.
Oh, glue is not necessary, nail every 6 to 8 inches in a grid.
You can use luan plywood or birch.
After looking at this answer I realize that I made a mistake. The nails I use are more like an inch and a quater. Serves me right for not going to bed when I should have.