We are renovating a Bungalow we have just bought and would like to have tiles throughout the ground floor.
We have the old carpets and laminate floor lifted and are lifting floor boards to insulate so want to do what we can now to prevent future problems.
Currently 60% of the ground floor is suspended timber with mixture of floor boards and chip board, joists are 38mm X115mm with a supporting sub walls at a max of 2.3m most rooms have a sub wall every 1-1.5m. Feels pretty solid.
The other 40% is of solid construction with an original acid etched finish (old farm house floor) however this is criss crossed with cement channels containing more modern pipe work. I say solid but there is hollow sounding patches
.
Considering changing joists to 50x200 to allow plenty of insulation without smothering the wood and also facilitate use of a pipe in pug system to add a bit of thermal mass without having to raise doorways etc.
Any opinions on what is best to cover the joists with to get a good stable surface for tiling? Any experience of Knauf Brio or GIFA gypsum based flooring?
Trying to price up refurbing the suspended timber parts vs concrete, however some of the voids are up to 900mm so hard fill is working out quite expensive (estimating 70m3 of hard fill before sand and slab etc)
Thanks Neil
We have the old carpets and laminate floor lifted and are lifting floor boards to insulate so want to do what we can now to prevent future problems.
Currently 60% of the ground floor is suspended timber with mixture of floor boards and chip board, joists are 38mm X115mm with a supporting sub walls at a max of 2.3m most rooms have a sub wall every 1-1.5m. Feels pretty solid.
The other 40% is of solid construction with an original acid etched finish (old farm house floor) however this is criss crossed with cement channels containing more modern pipe work. I say solid but there is hollow sounding patches
.Considering changing joists to 50x200 to allow plenty of insulation without smothering the wood and also facilitate use of a pipe in pug system to add a bit of thermal mass without having to raise doorways etc.
Any opinions on what is best to cover the joists with to get a good stable surface for tiling? Any experience of Knauf Brio or GIFA gypsum based flooring?
Trying to price up refurbing the suspended timber parts vs concrete, however some of the voids are up to 900mm so hard fill is working out quite expensive (estimating 70m3 of hard fill before sand and slab etc)
Thanks Neil