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The big model was the first step in starting our more detailed design process of a certain moment in our schemes. In a format very similar to the big draw, we explored specific aspects of our buildings by modelling them at 1:20 or 1:50 using greyboard.

For this, I chose to model the greenhouse. I was particularly interested in the way the buffer zone could provide an experience for those entering and exiting the building, in addition to its functional logic.

envisioning the internal space through sketches

Modelling this part of the greenhouse allowed me to begin to test how lighting could be controlled, filtered and softened. The modular nature of the bays allowed me to create exchangeable glazing "panels" to test the results through my model.

plain paper

tracing paper

acetate

Layering the different materials allowed for greater control over the quality of lighting in the building, which is something that can be used to focus light on one part and diffuse light in another in a more specific and predictable manner.

Although it is a fairly simple structure, there are important elements that need to be considered when designing and building one - this is even more important in this project as the scale of the greenhouse will be far bigger. By looking at a real-life example, the greenhouse next to the Shed, I've thought in length about the following aspects...

Greenhouses exaggerate outside temperature conditions, so it is important to have mechanisms in place to regulate temperature. In this greenhouse, the use of small ventilation grills allows cool air in and warm air is expelled out from the openings at the top.

Given that a greenhouse is heated primarily through solar gain, the transparency and translucency of the glass panels become an important part of the thermal regulation strategy. In this instance, the south-facing side of the greenhouse has been painted to reduce the direct solar gains.

Detailing is simple and straightforward, which is in line with the rest of the greenhouse's structure. 

I will consider these details and others whilst considering thermal comfort in the greenhouse - as it is the most sensitive to changes in temperature/daylighting.

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