Kitchen half of my kitchen diner is being refurbished and I want to install underfloor heating. The floor covering will be vinyl. Both floors are currently at the same level and the diner floor has a varnished finish. Problem is the foil heating will add a 13mm step between the floors so to get them more or less level I thought about the following:
1. Lift floorboards in kitchen area (22mm)
2. Screw timber rails along both sides of joists 12mm below their surface.
3. Lay 12mm marine ply between joists so that it is flush with top of joists
4. Lay 9mm marine ply on top of joists and 12mm ply
5. Lay foil heating system (13mm)
6. Lay vinyl (3mm)
This arrangement means my kitchen floor (without the covering) will be at the same level as the diner floor, with only a small step between the transition. But will it be structurally sound?
1. Lift floorboards in kitchen area (22mm)
2. Screw timber rails along both sides of joists 12mm below their surface.
3. Lay 12mm marine ply between joists so that it is flush with top of joists
4. Lay 9mm marine ply on top of joists and 12mm ply
5. Lay foil heating system (13mm)
6. Lay vinyl (3mm)
This arrangement means my kitchen floor (without the covering) will be at the same level as the diner floor, with only a small step between the transition. But will it be structurally sound?
