Laying Chipboard on Chipboard to Level Floors Help, advice, information, answers and tips on all types of flooring from laminate and carpet to timber and vinyl

[curtlyb]

Hi,
After a new extension we now have a lounge floor 18mm lower than the kitchen extension so i'd like to re-floor the lounge with new Chipboard on top of the existing Chipboard to make it level. Question is, which is the preferred method of securing the boards, would it be screws, wood-glue or both ???
Any advice would be greatly appreciated
C

[crazydaze]

Screws at regular intervals. Don't use glue, any warping of the boards and the glue will often 'click' under the floor.