Compact roof solution
With one combined roof penetration for supply and extraction, the roof solution remains compact and tidy. Ideal for renovations with limited space.
Case Study
Sustainable renovation of 44 homes with the Burgerhout Elytra combined roof drainage system
In the Kraaijenberg neighborhood in Wijchen, 44 social rental housing units have been completely gas-free. In this renovation project, the Burgerhout Elytra combined roof-to-floor ducting played an important role as a compact and efficient solution for indoor air-to-water heat pumps.
In short
Project Summary
Project renovation of 44 social housing properties
Location: Wijchen, Kraaijenberg district
Year: 2025
Application making existing homes completely gas-free
Solution: Burgerhout Elytra Combined roof outlet
Large-scale renovation projects revolve around speed, reliability, and smart system choices. In Wijchen, all of these came together. The limited installation space in the homes required a compact solution, while the housing corporation simultaneously had high ambitions regarding sustainability, living comfort, and feasibility. The Burgerhout Elytra combined roof drainage system perfectly meets this challenge.
The challenge
Rapidly making sustainable progress in a limited space
The assignment was clear: implement sustainability measures for an entire neighbourhood of 44 social housing properties, and do so in a way that is quick, efficient, and future-proof. At the same time, the technical constraints were tight. Only approximately 1 m² of installation space was available within the homes. This called for compact solutions that are easily integrated into renovation projects, without unnecessary complexity on the roof or in the home.
In addition, the chosen solution had to contribute to a comfortable living situation for residents, with attention to performance, noise, and a neat finish to the roofscape.
Project benefits
Why the Burgerhout Elytra combined roof drainage system suited this project well
Quick to install
Thanks to the modular design, the Burgerhout Elytra combined roof outlet can be efficiently installed and is suitable for a smooth project-based rollout.
Reliable performance
The aerodynamic design helps to limit recirculation and air resistance, for good and stable operation of the system.
Comfort and aesthetics
The isolated construction helps to dampen noise and the compact design limits the visual impact on the roof.
The solution
Burgerhout Elytra Combined Roof Flue
For this project, the Burgerhout Elytra combined indoor air-to-water heat pump without an outdoor unit has been chosen for the roof ducting. The strength of this roof ducting lies in combining the air supply and air exhaust in one compact duct. This means less roof space is required and the installation remains organized.
This is particularly advantageous in renovation projects like those in Wijchen. The solution is suitable for sloping roofs from 15° to 60° and can be installed both horizontally and vertically. This gives installers flexibility during installation and makes the roof drainage system highly versatile in existing residential construction.
In terms of durability and installation reliability, the solution also perfectly suits project-based renovations. The aluminum insulation panel in combination with Leadax provides a reliable, waterproof connection to the roof. This Burgerhout Elytra combined roof penetration not only ensures practical installation, but is also designed for long-term performance.
Featured Product
Burgerhout Elytra
The Burgerhout Elytra combined roof manifold has been developed for indoor air/water heat pumps without an outdoor unit and combines installation convenience with a compact roof solution.
