The recommended glue for floating installation is tongue and groove engineered flooring glue.
Tongue and groove flooring installation guide.
The glue must be placed along the topside of the groove the full length of the grooved side and end.
For tongue and groove flooring drive a nail at a 45 degree angle through the tongue then conceal it by engaging the groove of the next board.
How to install tongue and groove pine flooring a helpful installation guide november 21 2019 june 20 2017 by the flooring lady if you are looking to install a tongue and groove floor it is important to know the different options.
For instance solid hardwood flooring is typically nailed down during installation while tongue and groove engineered flooring is usually clicked together or completely glued down.
Tongue and groove flooring 101 find out why these smooth level surfaces have triumphed over their predecessors and get top tips for diy installation.
Be sure to countersink the nail drive it slightly below the surface of the wood to prevent interference in the joint.