Energy Building Performance Flashcards by Sé O'Grady | Brainscape

Q

Factors that affect the efficiency of a building

A

Insulation - 66%
Air Tightness - 12%
Glazing -12%

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Q

What is air tightness

A

Resistance to inward and outwards air leakage

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Q

How to fix air tightness

A

Silicon sealant

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Q

What is another name for U value

A

Thermostat transmittance

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Q

What is U value measured in

A

W/ m2/ k

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Q

U value equation (rate of heat flow/ Q)

A

Q = U x A x temp. diff.

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