Velux GDL User Manual

VAS 451393-2010-03
35°-53°
GDL
ENGLISH: Installation instructions for CABRIO™ roof balcony
DEUTSCH: Einbauanleitung für zweiflügeliges Dachfenster
CABRIO™
FRANÇAIS : Notice d'installation pour verrière balcon CABRIO™
DANSK: Monteringsvejledning for tagaltan CABRIO™
NEDERLANDS: Inbouwinstructies voor de CABRIO™
ITALIANO: Istruzioni di montaggio per CABRIO™ la finestra
balcone
ESPAÑOL: Instrucciones de instalación de la ventana balcón
CABRIO™

Velux GDL Specifications

General

Operation	Manual
Glazing	Double or Triple Glazing
Sound Reduction	Up to 37 dB
Energy Efficiency	High
Installation	Roof-mounted

Summary

Installation Positioning and Dimensions

Define Key Installation Dimensions

Explains critical height measurements (H1, H2, X, C) for balcony placement.

Roof Installation Procedures

Profiled Roofing Material Installation

Instructions for positioning the window on profiled roofing.

Flat Roofing Material Installation

Instructions for positioning the window on flat roofing.

Sash Removal and Frame Assembly

Fit and Secure Support Brackets

Connect Window Elements

Assembling the upper and lower window sections together and securing them.

Railing System Installation

Install Railing Stops and Shock Absorbers

Securing Sashes and Railings

Replace Lower Sash and Secure

Final Sash and Window Closure

Fit Upper Sash

Installing Flashing Sections

Fit Bottom Flashing Section

Installing the lower part of the roof flashing system.

Fit Side Flashing Sections

Installing the side parts of the roof flashing system.

Securing Handrails and Sashes

Secure Lower Sash and Brackets

Final Handrail and Sash Adjustments

Position Sash Vertically

Connecting Spring Mechanisms

Connect Springs to Brackets

Ensuring automatic connection of springs to fittings when operating the sash.

Sash Operation Adjustment

Adjust Springs for Sash Control

Fine-tuning spring tension to control sash opening speed and stability.