Insulation envelope
The Scottish Building Standards, Part I. Technical Handbook – Domestic, Appendix A Defined Terms, defines ‘insulation envelope’ as:
‘…the building elements which encapsulate the building or parts of the building which use fuel or power for heating or cooling the internal environment and will comprise all or some of the following:
- elements exposed directly to the outside air
- elements directly in contact with the ground
- floors directly in contact with a solum space
- elements that are buffered by an enclosed area
- separating elements where the thermal transmittance should be ignored.’
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