Platform on new construction, renovation, restoration and transformation
Every roof requires attention. This is certainly true of the roofs of the historic Beekwilder buildings at Prins Hendrikkade 16–19 in Amsterdam, where history and technology are closely intertwined. The 17th-century row houses are part of the UNESCO World Heritage Site and are currently undergoing extensive renovation. Korff Dakwerken is responsible for renovating the flat and sloped roofs, a project that requires a delicate balance: the roofs must meet modern standards while retaining their historic character.
With decades of experience, Korff Dakwerken offers a tailored solution for every project. Whether it’s a simple renovation or a complex sustainability project, the company primarily works for regular clients, such as Van Wijnen. “In recent years, we’ve completed many new construction projects for Van Wijnen,” says Robin Korff, director of Korff Dakwerken. “But our core strength has always been renovation projects. Our portfolio includes many impressive historic projects, including some in Amsterdam. That’s why we were awarded this contract as well.”
Van Wijnen was looking for a roofing partner with extensive knowledge and expertise in historic roofing, lead, and zinc work—one that could take care of everything for them. Korff Dakwerken is clearly the right choice for this. “In this project, we’re making the flat and sloped roofs more sustainable with new insulation, so they once again meet current requirements,” said Korff. “Next, the flat roofs will be covered with bituminous roofing material, while on the sloped roofs, the existing old roof tiles will be carefully re-installed and re-caulked. For this, too, we’re using reclaimed roof tiles to preserve the historic appearance of the roofs.”
Korff Dakwerken is also replacing all lead flashings, the gutters, and the zinc work on the dormer windows, and is handling the specialized zinc work. As an example, Korff mentions a standing seam system on and against the facades. “It is important here that the lead and zinc work be installed in precisely the correct thicknesses, so that the historic preservation requirements are met in every respect.”
“One challenge is the monumental nature of the project, which requires careful consideration of every detail,” said Korff. “Furthermore, the logistics are complex. We’re working at an inner-city location where space is limited. This calls for creative solutions. By temporarily storing the existing roof tiles and other materials on the flat roofs, we kept the construction site accessible to our construction partners.”
