new floorboards in extension

hi,
In the last stages of an extension and am about to install the oak floorboards. A few questions:

1. I am currently using yellow tongue for the floor in the new room primarily as a stable work surface. CAn I put the floor boards over the yellow tongue? Is there any advantage/disadvantage in doing this?

2. What insulation should I use under the floor?

3. Does there need to be some space between the edge of the floor boards and the wall frame?

thanks
greg


Read the full thread at RenovateForum.com...