designer

1. Thermal conductivity λD (23,50) 038 W/mK
2. AFr airflow resistance 4–40 kPa S/m2 (26–60 kg/m3)
3. Euroclass, reaction to fire  B-s2,d0 (Very Limited contribution to fire)
4. Mould index 0
5. Water vapour permeability µ = 1.4
6. Settlement:
   • < 10% (dry open blow: attics, intermediate floors)
   • 0% (dense blow: wall and closed roof cavities, floors)
   • 0% (Sidox-application: attics and wall cavities)
7. Specific heat capacity 1600 kJ/kg
8. GWP 105 g CO2e/kg
9. Biogenic carbon storage 1350 g CO2e/kg

(Sources: EAD 040138-01-1201, RTS_150_21, research report ECO–P22022-22014-en)

Kraft air barrier  paper

1. Square weight 180 g/m2
2. Roll width 1250 mm
3. Square metres in a roll 60 m2
4. Thickness 0.2 mm
5. Tensile strength in longitudinal direction 872 kN/m
6. Tensile strength in transversal direction 430 kN/m
7. Water vapour permeability µ = 0.61

Retro air barrier paper

1. Square weight 200 g/m2
2. Roll width 1325 mm
3. Square metres in a roll 60 m2
4. Thickness 0.275 mm
5. Tensile strength in longitudinal direction 1820 kN/m
6. Tensile strength in transversal direction 695 kN/m
7. Water vapour permeability µ = 0.07

Manufacturer: Eltete Oy

U-value table attics

U-value table closed roofs

U-value table walls

Energy-efficient model structures 

According to the boundary conditions of the current energy efficiency regulation section 33, E numbers for the most typical residential buildings can be determined from the tables without calculations!

• The U-value for walls is a maximum of 0.12 W/m²K
• The U-value limited to the outside air for the flat roof and bottom is a maximum of 0.07 W/m²K
• floor: the ventilated subfloor bordering the crawl space or the building part against the ground is a maximum of 0.10 W/m²K
• Air tightness q ₅₀ ≤ 0.60
• Mechanical intake and exhaust ventilation, LTO ≥ 65%, as a ventilation system
• District/geothermal heating or an air-water heat pump as a heating system

Read more about the possibilities of § 33 here