For doors, infill weight, safety, solar load and the glass or panel edge are as important as thermal performance.
Aluron / Aluminium entrance doors
AS 75 Door
The door branch of the AS 75 platform for thermally insulated external doors. Anti-bimetal solutions improve stability under temperature differences, with multiple threshold and fitting options.

VERIFIED PARAMETERS
Door performance is geometry, temperature and hardware.
For a tall external door, insulation is only one part of the problem. Temperature differences, panel/glass weight, closer, electric lock and threshold determine real operation.
3000 × 1400 mm
280 kg
75 mm
17–57 mm
from 0.93 W/m²K
class 4
E1200
C2
RC2 / RC3
up to 41 (-1; -5) dB
With AS 75 doors, thermal performance is only part of the picture. Leaf weight, hinges, lock, threshold and expected use determine the working configuration.
PROFILE CROSS-SECTION
AS 75 Door profile geometry in detail.
This image shows the system's profile geometry, chambers, thermal breaks and glazing zones. The final junction is selected for the opening scheme, glass build-up, dimensions and project loads.

DOOR ARCHITECTURE
A thermally insulated entrance without bulky styling.
Multiple threshold solutions
Compatibility with contemporary door hardware
Anti-bimetal thermal strips for dimensional stability
Glass or panel infill configurations
DOOR DETAIL
Closer, lock and threshold are specified together.
For a premium entrance door we freeze the opening scheme, access control, closer, threshold, pull handle and power supply before fabrication.
Hardware
Vent weight and geometry must match hinges, closer and lock.
Threshold
Finished-floor level, sealing and accessibility are coordinated before ordering.
Electrical
Motor locks and access control require cable routes and service access.
BIFORIUM / PRACTICE
A system only works as a whole with glass, hardware and installation.
Threshold, rigid support, waterproofing and finished-floor level are fixed before production.
Open engineering details ↗Lock, hinges or pivot mechanism, closer, automation and access control are coordinated as one hardware package.
Threshold, rigid support, waterproofing and finished-floor level are fixed before production.
FAQ / SPECIFICATION
Questions to close before specification.
Can the system be selected only from catalogue performance?
No. Published values help shortlist options, but the finished element still has to be checked for size, glazing, weight, hardware, loads and installation detail.
Does every opening need the same glazing build-up?
Not necessarily. A south-facing elevation, a bedroom near traffic, a large fixed pane and an entrance leaf can require different glazing within the same project.
When should the installation detail be coordinated?
Before the final order. Finished-floor level, insulation, waterproofing, structural support and drainage can change the frame, threshold or final manufacturing size.
HOW TO READ THE DATA
Six values that shape the result.
A catalogue maximum is not the rating of every fabricated element. Classes depend on size, opening scheme, glazing, hardware and the tested configuration.
ENTRANCE DOOR
Send the door size and desired hardware.
We will coordinate panel or glass, threshold, lock, closer, handle, access control and installation detail.
Send project ↗
