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
Making 44 homes more sustainable with Burgerhout Elytra
In the Kraaijenberg district in Wijchen, 44 social housing units have been made completely gas-free. In this renovation project, the Burgerhout Elytra played an important role as a compact and efficient roof solution for indoor air/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
Burgerhout solution: Elytra combined roof terminal
For large-scale renovation projects, it's all about speed, reliability, and smart system choices. In Wijchen, all of that came together. The limited installation space in the homes called for a compact solution, while the housing corporation simultaneously had high ambitions in terms of sustainability, living comfort, and implementability. With the Burgerhout Elytra, a combined roof duct was chosen that perfectly met these challenges.
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 Elytra worked well for this project
Quick to install
Thanks to its modular design, Elytra is efficient to assemble and suitable for 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 Elytrawas chosen: the combined roof penetration for internally installed, ductless air-to-water heat pumps. The strength of Elytra lies in combining air supply and air extraction in a single, compact penetration. This requires less roof space and keeps the installation tidy.
This offers clear advantages, particularly in renovation projects like those in Wijchen. The solution is suitable for pitched roofs of 15° to 60° and can be installed both horizontally and vertically. This gives installers flexibility during execution and makes the Elytra widely applicable in existing housing.
The solution is also well-suited to project-based renovations in terms of sustainability and installation security. The aluminium flashing combined with Leadax ensures a reliable, watertight connection to the roof. This means the Elytra is not only practical to install but also designed for long-term performance.
Featured Product
Burgerhout Elytra
The Burgerhout Elytra is developed for indoor air/water heat pumps without an outdoor unit, combining ease of installation with a compact roof solution.
