Catherine Field Building
Inspections

The part of the house nobody looks at twice

Insulation, ventilation and what is missing from both.

Owner Inspections · Catherine Field 2557 · 2026-06-22

In short: Ceiling insulation and roof ventilation recorded missing on Austral lock-up work.

What was recorded

Ceiling insulation not installed, and a roof ventilator not installed, on an Austral lock-up inspection, along with general views of the metal roof cladding from inside.

Why the roof space matters

It is the least visited part of a house and the one where a small omission runs for decades. Nobody goes back up there until something goes wrong.

Insulation

Missing insulation is an energy and comfort problem rather than a structural one, but it is also a contract item you have paid for, and it is far cheaper to raise before the ceiling is closed.

Ventilation

Roof spaces rely on air movement to carry moisture out. Restrict it and the moisture stays, which is how timber ends up with a condition conducive to decay and to termites.

What we do

Enter the roof space wherever access is safe and readily available, and say plainly when it was not.

Written by the Owner Inspections team from inspections carried out in Catherine Field. Licensed building practitioners, NSW Fair Trading licence 366177C.

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FAQ

Questions Catherine Field owners ask about this

Is the roof space always entered?

Wherever access is safe and readily available, yes. Where it is not, the report records the area as inaccessible rather than implying it was checked.

Would I ever notice missing insulation?

Through the power bill, eventually. That is a slow and expensive way to find out.

Are new houses ventilated properly?

Usually, and the failures we see are omissions rather than design faults, like a ventilator that was specified and never fitted.

Which standards apply?

The National Construction Code and ABCB Housing Provisions for insulation and ventilation, with AS 3660 relevant where moisture becomes a termite question.

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