Ground Floors

Ground Floors

Ground floors can be either solid or suspended. Solid floors tend to be the easier and cheaper option, whereas suspended floors tend to be used where the thermal envelope is above a basement, or where planning authorities require a floor void because of flooding risk. Suspended timber ground floors are not advisable for Passivhaus buildings, because of the inherent moisture risk and complicated detailing required.

Care is needed in choosing insulation for ground floor and foundations that are outside the dampproof membrane, as the thermal performance can be substantially diminished depending on which material is used. Extruded polystyrene is probably the...

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On its own, beam and block floor construction will not satisfy the principles of Passivhaus design mentioned previously. By its very nature, ventilation is created under the system allowing air movement in and around the floor structure. The...

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An insulated slab ground floor system satisfies all the Passivhaus principles of design, including: continuity of insulation, no thermal bridging, airtightness of the concrete slab, and no issues with thermal bypass. In principle, achieving a ‘...

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Next generation insulation solutions for floors. OPTIM-R comprises a rigid vacuum insulation panel which is evacuated, encased and sealed in a thin, gas-tight envelope, giving outstanding thermal conductivity and the thinnest possible solution...

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Comprises 142 or 172 mm thick structural insulated panels (SIPs) connected with a unique jointing system for walls and roofs, and intermediate floors using I-beams or open web joists.

Product certification:
N/A
Featured project:
The Greenhauses, London