Shading Devices:
- Verandahs provide shade in the heat though also a covered space for occupants to retreat to on hot nights.
· By lining the underside of the verandah with sheet metal, so that the heat which passes under it does not become hotter before entering the house.
- Verandahs provide shade in the heat though also a covered space for occupants to retreat to on hot nights.
· By lining the underside of the verandah with sheet metal, so that the heat which passes under it does not become hotter before entering the house.
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Orientation:
o By placing a longer shaped building in the average track of the sun, the amount of sun received by the walls in decreased. This affects the internal temperature by lowing it.
o To minimise conduction gains, insulation should be used, as density affects thermal conductivity.
o To minimise conduction gains, insulation should be used, as density affects thermal conductivity.
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Ventilation:
o Having the structure raised off its base allows for ventilation
Structure:
o By permanently having water covering a roof, it reduces the internal temperature by 3˚C.
o Windows should be used for cross ventilation and natural lighting, though they should not be too big to minimise amount of sun penetration.
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Structure:o The indoor air temp of a timber structure will peak from the low figure to a high one at midday. For a brick structure, it will remain fairly constant at a medium temp though will peak with a lower figure to timbers, at 4pm.
o The total heat flow for a light weight structure will be extremely low in the morning, reaching its low point at 8am where it begins to rise. Its high peak point happens around 5pm where it begins to recede again.
o For heavy weight construction the total heat flow begins at a medium temperature before falling at 3pm where it rises back close to that medium temperature.
o The total heat flow for a light weight structure will be extremely low in the morning, reaching its low point at 8am where it begins to rise. Its high peak point happens around 5pm where it begins to recede again.
o For heavy weight construction the total heat flow begins at a medium temperature before falling at 3pm where it rises back close to that medium temperature.
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Design techniques:
o Louvers can be used to benefit by shading windows whilst still allowing air movement and lighting. To be beneficial, they should be made out of light weight materials to minimise thermal mass and stop them from producing heat. To increase the effects of louvers, they should be coated in light colours to reflect the sun-gain.
o High Ceilings provide a cooler interior as the impact of the sun absorption from the roof has a larger space to fill and a larger distance to travel to reach the occupants.
o Openings should be maximised to allow for insulation in the day though ventilation during the night.
o High Ceilings provide a cooler interior as the impact of the sun absorption from the roof has a larger space to fill and a larger distance to travel to reach the occupants.
o Openings should be maximised to allow for insulation in the day though ventilation during the night.
o Openings should be maximised to allow for insulation in the day though ventilation during the night.
o Walls which fold down at night to allow hot air to be released.
o Having a double skin which isn’t in contact with the building, stops heat from directly heating up the occupied spaces.
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