Roof Inspection for a Flood-Affected Home in the Shoalhaven

After a flood, here is what to check — and what to leave to a roofer

If your Shoalhaven home has been through a flood, or you are buying a property in a flood zone, the roof needs more attention than it usually gets — and a lot of the damage hides where you cannot see it. This guide covers what flooding actually does to a roof, a safe ground-level checklist, the asbestos warning for older homes, the free NSW assessment program, and what buyers in Terara or Bangalee should ask before exchanging contracts.

Nowra Roofing Co inspects flood-affected and floodplain roofs across the Shoalhaven and provides written reports. Licensed and insured. Call (02) 4406 4996 for a free inspection.

Why floodplain homes in the Shoalhaven face a different roof risk

The Lower Shoalhaven River floodplain covers roughly 120 square kilometres downstream of Nowra. Terara — the original Shoalhaven settlement — and Bangalee sit directly on it, and Shoalhaven Heads, Greenwell Point and parts of Nowra and Bomaderry carry flood exposure too. Terara has a long flood history, with major events recorded in 1860, 1870, 1974 and 1978, and the region was hit again by the 2022 east coast lows, which left an $80 million damage bill to Council infrastructure and around 2,600 individual damage sites (source: South Coast Register; NSW Flood Data Portal).

A floodplain home faces a dual risk: the storm that drives a flood also drives wind and debris at the roof, and the floodwater that follows compromises drainage and structure differently from ordinary rain. Pooling water under eaves, debris striking the roof, and sustained saturation all combine in a way a non-floodplain property never sees. Shoalhaven City Council recognises this with dedicated floodplain risk management studies, including a Lower Shoalhaven River plan and a separate Terara Village plan.

What flooding and storm events actually do to a roof

The damage falls into two groups — what you can see, and what you cannot.

• Wind uplift during the storm lifts ridge caps, dislodges tiles and peels metal sheet at the laps.
• Debris strike from branches and airborne material dents sheets, cracks tiles and damages flashing.
• Ridge-cap mortar saturation — bedding and pointing absorb water and crack over time.
• Sarking compromise — the membrane under the roof, degraded by sustained moisture, loses its waterproofing.
• Gutter and fascia debris loading — debris weight pulls gutters away from the fascia and blocks drainage.
• Roof-cavity moisture — saturated insulation, wet sarking, mould and long-term timber wet-rot, none of which is visible from outside.

That last group is the reason a flood-affected roof needs a proper inspection: a standard look from the ground simply cannot reveal it.

Your ground-level visual checklist — what to look for before calling a roofer

Stay safe first: do not climb onto a wet or storm-affected roof. You can learn a lot from the ground and from inside the ceiling.

From the ground, look for:

• Missing, slipped or cracked tiles, or lifted metal sheets.
• Ridge caps out of alignment.
• Gutters pulled away from the fascia, overflowing or visibly sagging.
• Debris lodged on the roof or in gutters.

From inside, check ceilings for:

• Water stains or fresh discolouration.
• Sagging plasterboard.
• A musty smell, which can signal moisture trapped in the cavity.

Photograph anything you find — clear, dated images help both a roofer and, later, an insurer. Then call a professional rather than investigating further yourself.

What a professional roof inspection covers after a flood

A roofer inspects the things a ground check cannot reach, then documents them. A thorough flood inspection covers:

• Tile or sheet integrity, and fixings.
• Flashing, valleys and penetrations.
• Ridge caps and mortar bedding.
• Gutters, fascia and soffit.
• The roof cavity — checking for moisture, wet insulation, mould and sarking condition.
• Structural timber for signs of wet-rot.

You receive a written report setting out the findings and the recommended actions, with photos. Our roof inspections and reports service is built for exactly this — for owners after an event and for buyers doing due diligence.

The asbestos warning — older Shoalhaven homes

This matters and it is easy to overlook. Homes built before 1990 in Australia may contain asbestos-containing materials in roof sheeting, eaves lining or ridge capping. Disturbing that material during an inspection or repair carries a health risk, and after flood damage there can be a temptation to get straight into the roof space.

Framed plainly: if your home is from before 1990, confirm the asbestos status before anyone accesses the roof or roof cavity. A licensed roofer will know to assess this, and a licensed asbestos assessor is required before any invasive work — SafeWork NSW is the relevant authority. NSW Government flood advice specifically flags asbestos as a contaminant to be cautious of when inspecting a flood-damaged property. Always raise the age of your home with your roofer before they access a suspect roof space.

The NSW Government Flood Property Assessment Program

After a declared flood event, the NSW Government runs a Flood Property Assessment Program that provides a free, detailed assessment of flood-affected properties. A certified assessor produces a comprehensive scope to repair the building and an estimate of repair costs, and looks for risks such as mould and asbestos.

It is genuinely useful — but note what it is: a building-wide assessment, not a roofing-specialist report. It does not replace a dedicated roof inspection, and the two work well together. The building assessment gives you the whole-property picture; a roof inspection gives you the depth on the roof system specifically. For flood recovery assistance, Service NSW is on 13 77 88, and the NSW SES emergency line (including roof tarping) is 132 500.

Pre-purchase roof inspection for a flood-zone property — what buyers should ask

Buying in a flood zone calls for sharper questions. Before you exchange:

Ask the vendor:

• The property's flood history.
• The roof's age and when it was last repaired or restored.
• Whether any insurance claims have been made on the roof.

Ask your inspector for flood-specific checks:

• Roof-cavity moisture and mould.
• Sarking condition and ridge-cap mortar.
• Flashing, valleys and structural timber signs.

Check the planning record:

• Look the property up in Council flood mapping. The Lower Shoalhaven River Floodplain Risk Management Plan and the Terara Village Floodplain Management Plan are public resources.

A dedicated roof inspection alongside the building inspection is worth it on a flood-zone purchase in Terara, Bangalee or anywhere across the Shoalhaven — it tells you what you are really buying before you commit.

What happens next — repairs, insurance and maintenance

Once you know the roof's condition, the path forward is clearer. Where the report identifies damage, our roof repairs and gutter repair and replacement services cover the work, and our storm and emergency roof repairs team can make a damaged roof safe quickly after an event.

If you are claiming on insurance, get the written roof inspection report in hand before you lodge — it is your strongest documentation. Our companion guide, storm damage roof insurance claims in the Shoalhaven, walks through the full claim process, AFCA, and what to photograph. For floodplain homes specifically, a regular inspection schedule — drainage cleared, pointing and flashing checked before storm season — is the cheapest protection you can buy.

Get your flood-affected roof inspected

Whether you have been through a flood, you are worried about the next one, or you are buying on the floodplain, we can inspect the roof properly — cavity and all — and give you a clear written report. We report honestly on what we find. Licensed and insured. Workmanship warranty.

Call (02) 4406 4996 for a free roof inspection, or explore more in our roofing guides or on our home page.