[OldDIYer70]

I'm redoing an attic and the daughter-in-law wants to put down a floating, interlocking wood floor. House is 60 years old with 3/4"x4" tongue and groove pine floor. I have enough sheets of 1/2"? OSB, that I used as flooring in the kneewall storage areas, to use as underlayment. But I see that people here mention 1/4" 'underlayment plywood'. Is that what I should be using? And I guess just a long enough nail to go through the T&G and into the joists? Thanks.

 

[griz]

Your 7/16" OSB will be great underlayment.

 

[Mark Harvey]

The only issue with OSB is that sometimes the particles are uneven. (especially if they get wet). Most coverings will be safe but avoid Lino on OSB as it will show the uneven spots of OSB. Other than that, you should be fine.

 

[OldDIYer70]

The only issue with OSB is that sometimes the particles are uneven. (especially if they get wet). Most coverings will be safe but avoid Lino on OSB as it will show the uneven spots of OSB. Other than that, you should be fine.

Thanks for the reply Mark. I was thinking luan plywood as has been used in the past, but I read that it's use for that has been replaced by underlayment plywood. I went out today and picked up the UP I need to do the floor tomorrow. I'll make use of the OSB in most of my remaining knee wall areas for possible storage.

Bruce

 

[hardwood-timber]

During installation of wood flooring, the inner quality and installation method are significant. However, problems about paint, glue, underlayer, skirting are ignored. If these seemingly simple accessories are unsafe and unenvironmental-friendly, then they would influence the whole surroundings of the house.If the skirtings and buckles are unfit, the effects are not satisfactory even we have the best wood flooring. Therefore, when should not ignore the accessories and ingredients.

 

[oh'mike]

During installation of wood flooring, the inner quality and installation method are significant. However, problems about paint, glue, underlayer, skirting are ignored. If these seemingly simple accessories are unsafe and unenvironmental-friendly, then they would influence the whole surroundings of the house.If the skirtings and buckles are unfit, the effects are not satisfactory even we have the best wood flooring. Therefore, when should not ignore the accessories and ingredients.

I could not have said it better!!!

 

[Gary in WA]

Welcome to the forums!

https://www.google.com/search?q=+Ho...+surroundings+of+the+house.&ie=utf-8&oe=utf-8

Gary