Suspended Timber Floor
This simple and effective system is a great solution for retrofitting existing suspended timber floors lacking thermal performance.
ADB breathable membrane is laid like a hammock lapping between and over the floor joists. Airtightness tape is used on overlaps and around the perimeter to connect the membrane to the walls further improving airtightness.
A flexible insulation is then fitted between the joists sitting on the membrane. Floorboards/chipboards are installed over the joists with an optional airtightness membrane. Finally, if additional overlay insulation (Pavanatur) is required, this can be installed prior to the flooring finish.
Click here to view a case study for a project that used this system
CROSS SECTION OF SYSTEM
- Timber flooring
- Pavanatur insulation Board – laid above floor deck
- Airtightness / floor desk (OSB/3/DB3.5 Membrane)
- Full fill joist insulation
–Pavaflex/Pavatextil-P/Sheepwool/Inditherm) - ADB breathable membrane looped between joists
SYSTEM PERFORMANCE
u-values
0.44 – 0.09.
