For a home in Nijkerk, Smienk Dakwerken carried out a complete roof renovation on an existing dormer. The existing roofing had seen better days and was due for replacement. By overlaying the roof with a new bitumen top layer and carefully reusing the existing zinc, a sustainable solution was chosen that will protect the roof against the elements for years to come. The end result combines a neat appearance with a reliable, watertight finish.
The photos clearly show how the work proceeded. First, the existing roof was prepared and the connections were checked. Next, the new bitumen roofing was installed, with close attention paid to the seams, roof edges, and the connection to the pitched tiled roof. Finally, the existing zinc finishes were reinstalled, ensuring that valuable materials were preserved without compromising on quality.
New bitumen roofing for a longer lifespan
A good roof renovation begins with a solid and watertight foundation. Therefore, a high-quality bitumen roofing membrane was chosen and applied over the existing roof. This method significantly extends the lifespan of the roof and prevents unnecessary demolition work.
The photos show that the roof surfaces have a sleek finish and that all details around the upstands and connections have been carefully executed. It is precisely these components that largely determine the durability of a flat roof and reduce the risk of future leaks.
Sustainable choice through the reuse of existing zinc
A special aspect of this project was the reuse of the existing zinc roof edges. After careful inspection, these were reapplied to the renewed roof structure. As a result, the characteristic appearance of the roof was preserved and unnecessary material consumption was avoided.
The combination of new bitumen roofing and existing zinc finishes demonstrates that sustainability and quality can go hand in hand. The roof looks sleek again, connects neatly to the existing roof structure, and is prepared for many years of trouble-free use.
With this roof renovation in Nijkerk, the home once again features a reliable, watertight, and well-maintained roof finish. Thanks to the new bitumen roofing and the reuse of the zinc roof edges, a sustainable result has been achieved that complements the existing home both technically and aesthetically.


