Dubbing
Thermal insulation
The thermal comfort of a home depends on the choice of construction materials.
Good insulation means limiting heat loss, that is to say preventing heat from escaping by making the walls
resistant to its passage.
For example, stone, brick or concrete masonry has very little resistance to the passage of heat.
Their performance is considerably improved with dubbing.
The thermal performance is conditioned by the quality of its insulation and its thickness.
Each type of insulation and each thickness corresponds to a thermal resistance expressed in Ru (useful thermal resistance).
For example, to obtain the same useful thermal performance, it is necessary:
165 cm of concrete or 5cm of TH 10 + 40 lining
Glued lining
NF DTU 25.42
Thicknesses
The maximum insulation thicknesses are now:
- 140 mm for standard expanded polystyrene and elasticized expanded polystyrene.
- 120 mm for polyurethane, extruded polystyrene and mineral wool.
Just like the ceilings, partitions . The linings will adapt to new work and others will be more suitable for renovation work.
Bonded lining complex
No more gasket issues. The best in insulation!
For doors and windows , the most appropriate solution is to install a joint to seal. For this, you can choose a foam, silicone, rubber or metal gasket, depending on your needs.
To avoid parasitic air passages which are the cause of harmful thermal bridges, a bead of polyurethane foam must be applied at the foot of the lining and in the reservations of the electrical outlets after passage of the ducts.
Type IV masonry or concrete walls.
Watertightness is ensured by a waterproof cladding or coating. No special requirements apply to dubbing
Glued lining
Glued lining
The inside face of the wall may be temporarily damp . The insulation must be non-hydrophilic.
The internal facing can be either a plate or a partition.
There is a risk of infiltration : evacuation by simple evaporation. The non-hydrophilic insulation must be at least 3 cm away from the masonry wall.
If cleats tied to the wall are used, they must be treated and arranged vertically.
Insulation no
hydrophilic
Insulation no
hydrophilic
Sealing
in the air
Sealing
in the air
Fungicide and insecticide treated vertical cleat.
Complex screwed or against partition, air gap 3 cm
Absorbent, loving or absorbing water. Materials that retain water are said to be hydrophilic*
Sandwich
or counter-partition
Sandwich
or counter-partition
Watertightness statement
Watertightness statement
Airtightness
Airtightness
Outlet
There is a risk of infiltration : evacuation by outlet.
The non-hydrophilic insulation must be at least 3 cm away from the masonry wall.
In the lower part of the wall, a system for collecting and draining any seepage water protects the foot of the air gap side lining.
Only sandwich linings and counter-partitions are authorized. If cleats tied to the wall are used, they must be treated and arranged vertically.