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Roof space – no insulation

  • Insulation was not a requirement when the house was built (or has never been installed)

    How to repair

  • Loose-fill insulation has been shifted by wind or activity by house occupants or tradespeople, or insulation has been removed when work done on the house

    How to repair

Roof space insulation has gaps, creases, folds or areas missing

  • Poor initial installation

    How to repair

  • Insulation has become displaced due to air movement/wind in the roof space/occupant activity – this typically occurs with loose-fill, blown-in insulation

    How to repair

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Roof space – insulation is touching the flexible roof underlay

  • This is likely to occur at the edges of the roof, particularly with low pitched roofs, where roof framing does not have enough depth to provide space for the insulation

    How to repair

  • The insulation has become displaced due to air movement/wind in the roof space/activity by occupants or tradespeople – typically occurs with loose-fill, blown-in insulation

    How to repair

Roof space – insulation has settled or compacted

  • Loose-fill blown-in insulation settles over time

    How to repair

  • Items stored in the roof space have compressed the insulation

    How to repair

Roof space – insulation is wet

  • A leak through roofing, around a chimney, flue or other roof penetration, from an inadequately flashed parapet or an overflowing internal gutter

    How to repair

  • Leaking pipes or water tanks in the roof space

    How to repair

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Ceiling joists sagging

Water pipes not insulated

  • Pipes have not been insulated. In areas subject to frost/freezing where pipes are installed above the ceiling insulation, both cold and hot water pipes should be insulated; in areas not subject to frost, hot water pipes should be insulated

    How to repair

  • Insulation has deteriorated

    How to repair

Interior musty smells

  • There is a high level of moisture in the rooms due to a combination of poor ventilation, not enough heating, and/or poor insulation

    How to repair

  • Dampness from the subfloor is getting into the rooms through gaps in the flooring and through service holes cut in framing

    How to repair

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Ceiling mould/mildew growth

  • Condensation forms on the ceiling because the roof space is not insulated - mould growth is the result of regular condensation occurring 

    How to repair

  • Not enough fresh air ventilation to the space

    How to repair

Ceiling mould/mildew growth adjacent to the external walls

  • Condensation forms on the ceiling because the roof space insulation has not been taken to the eaves 

    How to repair

Ceiling framing location visible on the ceiling

  • Condensation forms on the ceiling along the lines of the cold bridges formed by the framing in an insulated roof space - mould growth is the result of regular condensation 

    How to repair

  • Condensation forming on areas of ceiling where there is no framing in an uninsulated ceiling 

    How to repair

Ceiling – water staining