FAQs On Garage Doors

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Q:What are the insulation values for the Hormann sectional doors?

The four important characteristics of thermal insulation, acoustic insulation, tightness and sealing, and wind load for garage doors are all tested and certified by Hormann.
These are important factors for the choice of door over and above the mandatory safety requirements.
The thermal and acoustic insulation properties for the modern garage, sealing against adverse weather effects and resistance to wind pressure in particularly windy regions are all far more important in the UK than ever before. Hormann LPU40 and EPU40 insulated sectional garage doors offer the very best in all these areas.


Thermal insulation
Double-skinned steel doors 42 / 20 mm  -  EPU40
Section U = 1.0 W/(m2?K)
Door leaf U = 1.4 W/(m2?K)
Fitted door 1) U = 1.8 W/(m2?K)

Double-skinned steel doors 42 mm  - LPU40
Section U = 0.5 W/(m²?K)
Door leaf U = 0.9 W/(m2?K)
Fitted door 1) U = 1.4 W/(m2?K)

Single-skinned steel doors  -  LTE40
Door leaf U = 6.0 W/(m2?K)
Fitted door 1) U = 6.5 W/(m2?K)

Doors with solid timber infill  -  LTH40
Door leaf U = 2.5 W/(m2?K)
Fitted door 1) U = 3.0 W/(m2?K)

Acoustic insulation
Single-skinned steel doors R = approx. 20 dB
Double-skinned steel doors 42 / 20 mm R = approx. 21 dB
Double-skinned steel doors 42 mm R = approx. 25 dB

Sealing
Air      Single-skinned steel doors Class 0   2)
Double-skinned steel doors
Ribbed (not L-ribbed) Class 2
Double-skinned steel doors
Panelled and L-ribbed Class 3
Doors with solid timber infill Class 0    2)

Water Single-skinned steel doors Class 0         2)
Double-skinned steel doors Class 3       3)
Doors with solid timber infill Class 0    2)

Wind load
Single-skinned steel doors Class 2
Double-skinned steel doors 42 / 20 mm Class 3
Double-skinned steel doors 42 mm Class 3
Doors with solid timber infill Class 3
Higher wind load classes on request

1) The U-values apply to fitted doors without glazing and a size of: 5000 × 2125 mm
2) Doors with ventilation slots, on request classes 2-3
3) Up to 70 Pa water pressure

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