Residents’ review: strengthening a house in Sliedrecht
Second opinion on existing calculations for an extension For our 1930s house, we asked De VerbouwingsConstructeur for a second opinion on calculations made by others for a renovation. The work involved opening up a rear wall, installing a portal frame and building a new extension. Following the second opinion, De VerbouwingsConstructeur recommended further […]
Read moreWide two-storey extension
I designed an extension eight metres wide and 2.5 metres deep over two storeys, on piled foundations. On the ground floor, a wall perpendicular to the existing rear wall, carrying a heavy concrete first floor, was replaced by a steel beam about […]
Read moreReport: assessment of cracking
Dear Mr Siemelink, Thank you for your quick response and the excellent work on the structural survey of the house on Tuinbouwstraat in Utrecht. I was given your name following a building survey of the house mentioned above. I have been trying to sell this house since 1 January 2017. […]
Read moreVilla in Zeist
De VerbouwingsConstructeur produced the structural calculations for a villa in Zeist with a 5×8 m swimming pool in the basement. For the design of the basement slab 5 m below ground level, groundwater uplift plays a major role. The geotechnical consultant initially gave a conservative groundwater […]
Read moreEconomical choice of columns
Existing stables are being extended with a canteen of approx. 54 m2, a passageway of approx. 31 m2 with a toilet of approx. 3 m2, an office of approx. 28 m2 and washrooms of approx. 16 m2. In front of the facade, the roof of the whole is carried by an oak truss, in the facade by a […]
Read moreSparrenlaan 1, Hollandsche Rading
Having already completed an interesting project for this client, Siemelink was commissioned to create an opening from the kitchen to the living room and another from the living room to the outside. The client also wanted two symmetrically placed French doors, each 1.7 m wide, in the rear wall, and no column where the […]
Read moreDouble opening in Hollandsche Rading, Sparrenlaan 1
Projects resulting from the Eigen Huis (Ver)Bouwen + Inrichten fair At Schoutenstraat 1 in Oegstgeest, we designed a rooftop extension with a hip rafter (a “space diagonal”). At Lumbesstraat 13 in Utrecht, we designed a wall opening Structural advice on how to account for the stiffening provided by sheathing on a timber frame, for a […]
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