Roof space – insulation is touching the flexible roof underlay

Causes

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

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

Listed under: Interior, insulation, Roof, framing, roof space, wind

Cause

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

Repair

  • pull insulation back from the edge of the roof where it touches the flexible roof underlay to leave a 25 mm air gap
  • if possible, install insulation with a higher R-value and thickness that will fit without touching the roof underlay 

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Cause

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

Repair

  • pull insulation back from the edge of the roof where it touches the flexible roof underlay to leave a 25 mm air gap
  • if possible, install insulation with a higher R-value and thickness that will fit without touching the roof underlay 

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