Cobbitty Building
Inspections

A roof space with no insulation at all

What a buyer learns from ten minutes in the roof space.

Cobbitty 2570 · 2026-08-12

In short: A pre-purchase inspection in Casula found no ceiling insulation installed anywhere in the roof space.

What was found

In a Casula home, the roof space had no ceiling insulation at all. It was recorded as a major item because insulation is required for energy performance.

Why buyers miss it

You cannot see it from the rooms below, and inspections at open homes rarely include the roof space.

Other roof space clues

The same inspection found cracked roof tiles and evidence of water under an ensuite shower, a reminder that the roof and wet areas deserve the most time.

Cost of the fix

Installing insulation is straightforward, but it is a negotiation point and a comfort issue you will live with.

For Cobbitty buyers

Older homes in the area may have been built before current requirements, so a look in the roof space is essential.

Written by our local inspection team from work carried out in Cobbitty. Licensed building practitioners, NSW Fair Trading licence 366177C.

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FAQ

Questions Cobbitty owners ask about this

Is no insulation a building defect?

For a new home, yes. For an older home it may reflect when it was built, but it still matters to your purchase.

Does every pre-purchase visit include climbing into the ceiling void?

When there is a safe manhole and enough clearance.

Can you check the insulation rating?

We note presence and condition. Thermal performance ratings need specialist assessment.

What else do you look for up there?

Leaks, damaged framing, signs of pests and the roof covering from inside.

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