M09 Tourist Information
M09 Tourist Information
A study on wooden construction and experiments on extraordinary insulation methods.
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Mod 9: “Wooden Construction I”
Task: Temporary wooden building with pitched roof; tourist and environmental hotspot -> design and details
Personal focus: extraordinary insulation to shift focus onto the construction and create a special lighting environment
The buildings alongside the site convince with a beautiful view onto the Neckar. In order to keep the view, the building acquired a unique shape with a lower middle and higher sides. Additionally, by drawing the front down, the view to the Heidelberg castle is not occupied and still visible from the street, the cafe and the pavement. The concave shape of the building forms an outside sitting area which is used by one of the surrounding restaurants to serve food and drinks in summer.
To ensure the stability of the building and to make sure the beams aren’t bending, the building consists of two separate types of wood with varying beam diameter. The outer beams have a diameter of 08/24 cm to support the length, while the inner beams are only 08/16 cm in diameter. The entry reminds of a funnel and is meant to invite the visitors, alongside a high ceiling, as well as the opaque walls which reveal the insides of the building in rough shapes. The opaque foils also allow the insides light to pass through and illuminate the scene. The complex framework and the wavy plastic are creating an interesting sight on the opaque foils. The entire building is fitted with warmwhite lights which light up the building at night.
The facade is covered in several layers. It consists of an inner, single layer to prevent turbulent air within the air layer which also serves as insulation, followed by a second, dual layer. The two layers create helium filled chambers. Due to the low density of helium, the chambers create the main insulation. To protect the wall which is already quite strong on its own from damage it is covered in wavy polycarbonate plastic which is mounted on the pillars and beams. The materials used in this project, especially the PTFE foils are intended to be recycled and produced out of recycled materials.
The floor is insulated by disrupted convection as well. The cobbles, as well as the gravel underneath the building have been removed. The hole is now filled with wooden beams. To prevent damage on the beams, the ground is sealed and the bearings of the wood are made out of neoprene.
1* The ETFE foil is jammed between the layers of wood to tense it. The screws penetrate the foil at the sockets to ensure a secure hold. In case the foil has to be exchanged, the screws can be removed which causes the foil to relax, making it possible to exchange it without a hassle. This easy fastening supports an easy, cheap and fast exchange of broken parts, if necessary.
1* ETFE-Foil sets itself apart through very good UV-Re- sistance, high translucency and a rather long lifespan of around 25 years. The sheet has a very low dead weight and is resistant against punctual force.
2* The conifer wood beam (60mm x 40mm) lifts the ground by roughly 15cm to fill the excavation hole, which is left behind after removing the cobblestone and gravel. The result is a layer of calm air which serves as insulation. The cross layering of the beams create punctual thermal bridge which is partially insulated and soundproofed by a neoprene layer.
3* The inner wall is made from a nylon membrane which diffuses the light evenly.
4* The wavy polycarbonate serves as cover for the outer wall. The plastic is easy and cheap to replace in case of damage through weather or vandalism due to its easy mounting.
5* The neoprene layers serve as sound attenuation and lowers the convection between the wooden rods.
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