EDKAN / Product
Solar control before the glass
Drutex exterior venetian blinds — brise-soleil orientables — with Z90, S90 and C80 laths, three installation systems, six matt lath colours and RAL box palette, with Somfy motor options selected for the project.

The Why
Why exterior venetian blinds
Exterior venetian blinds sit on the outside of the glass. When the laths are tilted, they reflect solar radiation before it reaches the window, which can lower cooling load in summer. Rotate them further and the same blinds provide privacy while daylight still enters. It is a single mechanical element that controls sun, view and privacy over the day — configurable in six matt lath colours, three installation systems and a wide RAL box palette.

Benefits
Core benefits
Solar control before the glass
Laths reflect sunlight on the outside of the window, so heat is intercepted before it enters — an intent-of-use benefit; project performance is confirmed during specification.
90° lath rotation
Free stepless tilt adjustment between fully open and closed positions gives day-long control over light, view and privacy.
Privacy with daylight
Angled laths let daylight in while blocking the direct line of sight from outside.
Cooling-load reduction
By intercepting solar radiation before the glass, exterior venetian blinds can reduce heat gain in summer. No guaranteed savings figure is claimed.
Automation-ready
Somfy motor and control options are available; the specific motor and hub are selected during specification.
Façade aesthetics
Six matt lath colours and a wide RAL box palette let the blind coordinate with windows, entry doors and cladding.
COLOUR VISUALIZER
Choose lath and box colours
Select a lath colour and a box-and-guide colour to preview all three installation systems together. Screen colours are indicative — the final colour is confirmed on physical RAL samples in the showroom.
Anthracite grey·RAL 7016/Anthracite grey·RAL 7016
Lath colour
Traffic whiteRAL 9016 Jet blackRAL 9005 Anthracite greyRAL 7016 White aluminiumRAL 9006 Grey aluminiumRAL 9007 DB 703 iron micaDB 703
Box and guide colour
Box and guides: Anthracite grey·RAL 7016
Note—The box and guide colour is applied to the two facade-mounted systems (centre and right). The top-mounted box (left) is typically finished to match the window and is confirmed at specification. Screen colours are indicative — the final colour is confirmed on physical RAL samples in the showroom.
LATH PROFILES
Z90, S90, C80 — three lath profiles, one product family
Z90, S90 and C80 are three lath profiles of the same exterior venetian blind family. They differ in profile geometry and visual character. The lath that suits your facade, exposure and wind conditions is confirmed during consultation.

Z-PROFILE LATH
Z90
A Z-shaped lath profile with crisp shadow lines and a tight closure appearance. Design language, not a performance rating — final suitability is confirmed during consultation.
- Z-profile geometry
- Tight closure appearance
- Balanced daylight/darkness feel

S-PROFILE LATH
S90
An S-shaped lath with a softer rolled edge and a slightly softer visual character than Z90. The right lath for a given facade, exposure and wind conditions is confirmed during consultation.
- S-profile geometry
- Softer rolled edge
- Discreet visual character

C-PROFILE LATH
C80
A C-shaped lath with a narrower architectural read. Drutex reports C80 as its most-chosen lath. The right choice for your facade is confirmed during consultation.
- C-profile geometry
- Discreet architectural read
- Drutex reports C80 as its most-chosen lath
Note—No wind, thermal or acoustic ratings and no maximum dimensions are published on this page. These are confirmed at specification.
INSTALLATION SYSTEMS
Top-mounted, Adaptive, Adaptive Blind
Three installation systems share the same mechanics. What changes is how the box integrates with the building. The right system depends on wall build-up, lintel, insulation depth and window schedule, and is confirmed on site.

BSO MONOBLOC
Top-mounted
Arrives as one unit with the window and is typically planned with new windows. The box sits above the frame.
Location
Installed on the window frame
Box dimensions (W × H)
- 260 × 275 mm
- 300 × 308 mm
- 365 × 308 mm
- 425 × 308 mm

BSO RÉNOVATION
Adaptive
Retrofit-friendly variant that mounts to the building facade over existing windows.
Location
Installed on the building facade
Box dimensions (W × H)
- 140 × 240 mm
- 140 × 300 mm

STORE ADAPTATIF
Adaptive Blind
The newest facade variant. Adds the 350 mm box for larger openings and can be recessed into the insulation layer.
Location
Installed on the building facade
Box dimensions (W × H)
- 140 × 240 mm
- 140 × 300 mm
- 140 × 350 mm
Common to all three systems
- Free stepless lath-tilt adjustment
- Recessed or self-supporting roller guides
- Optional emergency control — described by Drutex as a fire-safety element in its documentation
- Can integrate with smart-management systems
Not every system suits every building. EDKAN confirms compatibility on site or during consultation.
CONSTRUCTION
Construction and components
Every exterior venetian blind is assembled from the same set of components: guide rails (coulisses) at the sides, a Somfy drive, the laths, and the box that houses the roll-up assembly. The specific drive, controls and installation variant are confirmed at specification.



1 — ROLLER GUIDES / COULISSES
ZF-A and ZF-S guide-rail variants. A guide profile for spans up to 260 mm is available according to Drutex documentation.
2 — SOMFY DRIVE
The referenced Somfy J4 WT Protect and J4 io Protect motors include overload protection, obstacle detection and icing detection according to Somfy specifications. Compatibility with SOMFY TaHoma when configured with a compatible motor and hub.
3 — LATHS
Free stepless tilt adjustment over 90°. Laths reflect sunlight before it reaches the window. Drutex recommends adding a weather station to the venetian-blind system when full automation is required.
4 — BOX / COFFRE
Flush-mounted, top-mounted and adaptive box variants depending on the installation method chosen.
Engineering
Somfy automation & Smart Home
Automation is an option. When configured with a compatible Somfy motor and hub, exterior venetian blinds can be controlled through TaHoma. The final motor and controls are selected at specification.
- 01
REFERENCED MOTORS
Somfy J4 WT Protect and J4 io Protect. Each motor includes overload protection, obstacle detection and icing detection according to Somfy specifications.
- 02
SMART HOME
Compatibility with SOMFY TaHoma when configured with a compatible motor and hub. The final control scheme is confirmed at specification.
- 03
WEATHER STATION
Drutex recommends adding a weather station to the system when full automation is required.
- 04
EMERGENCY CONTROL
Optional emergency/manual override — described by Drutex as a fire-safety element in its documentation. Per-system availability is confirmed at specification.
INSPIRATION
The product in real interiors
Note—Photography provided by Drutex. EDKAN project photography will be added as projects are completed.
Process
Flawless Installation. Zero Stress
Premium European systems deserve precise installation. Our local team handles every step — measured to the millimetre, sealed for performance, and finished clean.
- 01
Consultation & Specification
We assess your project, discuss systems and finishes, and define the right specification for your home.
- 02
Precise Measurement
Exact measurements ensure your custom European systems fit each opening perfectly.
- 03
Custom European Manufacturing
Your windows are built to order in Europe to your exact specification.
- 04
Careful Delivery
Systems are transported and handled with care to protect every unit.
- 05
Professional Installation
We install with proper sealing and insulation for airtight, weather-tight performance — protecting your interior throughout.
- 06
After-Sales Support
We complete a final inspection and remain available after installation for support, adjustments and documentation.
Showroom

Saint-Eustache · Greater Montréal · Private appointments · Engineers, not salespeople
Experience European quality in person
See and operate the systems yourself at our Saint-Eustache showroom. Examine the profiles, feel the hardware, and discuss your project with our team.
What your visit includes
- See and handle Z90, S90 and C80 lath samples
- Compare RAL box and guide-rail samples side by side
- Discuss the installation systems that fit your building
- Review Somfy motorisation options — no sales pressure
- Hours
- By appointment only
By appointment. Typical visit: 30–45 minutes.
Drutex product brochure — Roller shutters, venetian blinds & insect screens
This combined Drutex brochure documents roller shutters, exterior venetian blinds and insect screens as one product family.
PDF — English
FAQ
Exterior Venetian Blinds — FAQ
Next step
Ready to Transform Your Home?
Request a personalized quote, or visit our Saint-Eustache showroom to experience the difference in person.
No obligation. Professional, architectural advice.









