T
The hammer
Hi All, A bit of advice please.I have used UFH on wooden substrates many times including my own bathrooms.
I have been approached to do a floor approx 20m2 which at present has wooden floor boards on wooden joists.
The client would like UFH installed, and wants the belt & braces treatment for the floor.
So here's what i intend to do
1 - Remove floor boards
2 - Strenghten joists with dwangs
3 - Screw down 18mm WPB prime both sides and edges with Mapei primer G
4 - Stick down Wedi board 6mm with Mapei keraquick, then screw down @ 200mm centres with washers
5 - Tape joints with wedi joint reinforcement tape & fill then smooth over with keraquick
6 - install heat mat making sure all cables are sufficiently bonded to wedi board, if necessary using spray adhesive
7 - apply a coat of Mapei fibreplan SLC cant remember if wedi board requires priming prior to SLC???
8 - Fit decoupling mat ????? is this necessary ???? the client is willing to pay if it is???? if necessary do i use a flexible adhesive ????
9 - Fix the floor tiles. Again what is the correct adhesive to use ie flexible ???or non flexible ???
10 - Grout with flexible grout
So guys/girls have i left anything out can you answer the ???questions??? for me
Thanks in advance
I have been approached to do a floor approx 20m2 which at present has wooden floor boards on wooden joists.
The client would like UFH installed, and wants the belt & braces treatment for the floor.
So here's what i intend to do
1 - Remove floor boards
2 - Strenghten joists with dwangs
3 - Screw down 18mm WPB prime both sides and edges with Mapei primer G
4 - Stick down Wedi board 6mm with Mapei keraquick, then screw down @ 200mm centres with washers
5 - Tape joints with wedi joint reinforcement tape & fill then smooth over with keraquick
6 - install heat mat making sure all cables are sufficiently bonded to wedi board, if necessary using spray adhesive
7 - apply a coat of Mapei fibreplan SLC cant remember if wedi board requires priming prior to SLC???
8 - Fit decoupling mat ????? is this necessary ???? the client is willing to pay if it is???? if necessary do i use a flexible adhesive ????
9 - Fix the floor tiles. Again what is the correct adhesive to use ie flexible ???or non flexible ???
10 - Grout with flexible grout
So guys/girls have i left anything out can you answer the ???questions??? for me
Thanks in advance
