Canberra Spring Roof Checklist: Storm Season and Pre-Summer Prep

Why Spring Is the Moment to Look at Your Roof

Most roof damage in Canberra happens in two stages. Winter does the slow work: months of overnight frosts, freeze-thaw cycles in mortar and tiny cracks, and sustained cold rain. Then spring and summer bring the sudden tests: thunderstorms, hail, strong winds and, by December, heat that pushes roof surfaces well past what the air temperature suggests.

Canberra's storm season generally runs from late spring through summer, and severe storms with hail are most likely in that window. A roof that came through winter with a cracked ridge bed or a blocked valley may still look fine from the street. The first heavy downpour is what finds the weakness. Spring is the gap between the two stages, which makes it the least costly time to fix what winter started.

This checklist is in the order we would work through it ourselves. Most of it can be checked from the ground, from a window or from inside the roof space. Please do not climb onto your roof: domestic ladders and footwear are not made for it, and falls from roofs and ladders cause serious injuries every year.

1. Look for What Winter Left Behind

Start with the damage that frost causes, because it is the most common thing we find on Canberra tile roofs in spring.

• Ridge and hip caps: the capping along the peaks is held on a mortar bed. Water gets into hairline cracks, freezes overnight, expands and slowly breaks the bed apart. From the ground, look for caps that sit unevenly or show gaps at the joints. Loose caps are exactly what a spring wind lifts off. Our ridge capping service explains the re-bed and re-point process.
• Cracked or slipped tiles: binoculars from the footpath or an upstairs window are enough to spot a tile sitting at a different angle to its neighbours, or a visible crack.
• Inside the ceiling: new water stains, bubbling paint or a musty smell in an upstairs room after winter rain are signs water is already getting in. Our guide to the signs of a leaky roof covers what each one usually means.

2. Clear Gutters, Valleys and Downpipes Before the First Storm

A summer thunderstorm can drop a large amount of rain in a very short time. Gutters are sized for that, but only when they are clear. A gutter half full of leaves overflows at the back edge, which sends water behind the fascia, down the inside of the wall and into the eaves. That is how a perfectly sound roof ends up with a water-stained ceiling.

• Gutters: autumn leaves that sat wet all winter have usually broken down into a heavy sludge by spring, and that sludge holds water against the metal and speeds up corrosion. Spring adds its own debris: blossom, seed pods and the bark that eucalypts shed.
• Valleys: the channels where two roof slopes meet collect debris before the gutter does. A blocked valley pushes water sideways under the tiles.
• Downpipes: a clear gutter feeding a blocked downpipe still overflows. After clearing, run a hose into each outlet and check it runs freely at the bottom.
• Hail: hail builds up in gutters and valleys like ice, blocking them just as the heaviest rain arrives. Clear gutters give it somewhere to go.

If you would rather not be up a ladder, our gutter cleaning service covers all ACT suburbs, and we check the condition of the gutters and fascia covers while we are there. If you are clearing the same gutters every few months, gutter guards are worth a conversation.

3. Check for Birds and Nests

Spring is nesting season, and Canberra's starlings and common mynas are very good at finding gaps under tiles, at the ends of ridge lines and in open gutter ends. A nest can block a gutter outlet or a valley completely, and birds that get into the roof space bring mites and noise with them. If you hear scratching in the ceiling at dawn, or see birds going in and out at the same spot, have it looked at before the nest grows. The gap they are using is often the same gap water is using.

4. Check Fixings, Flashings and Anything That Sticks Out

Storm winds do not usually peel off a sound roof. They find the one thing that was already loose.

• Metal roofs: look for sheets with lifted edges, and screws that have backed out or lost their rubber washers. Colorbond moves as it heats and cools, and over years that movement can loosen fixings.
• Flashings: the metal seals around chimneys, skylights, flues, vents and solar panel mounts. Look for lifted edges and cracked sealant. Sealant that has done a few Canberra summers is often brittle.
• Skylights and whirlybirds: older polycarbonate skylight domes go brittle in UV and can shatter in hail. A whirlybird that does not spin freely in a breeze has usually seized.
• Trees: branches overhanging the roof drop debris all year and become a hazard in a storm. Trimming them back, by an arborist where needed, is one of the most effective storm preparations there is.

5. Get Ready for Summer Heat and Bushfire Season

Canberra's altitude means high UV and, in summer, roof surfaces that get far hotter than the air. That heat is hard on everything a roof relies on.

• Roof space ventilation: a roof space that cannot shed heat makes the house below harder to cool, and the heat cooks sealants, cabling and the underside of the roof. Our roof ventilation service covers whirlybirds and other options.
• Coatings: on tile roofs, a coating that has faded, chalked or flaked has stopped protecting the tile underneath. That matters most on concrete tiles, which become more porous as the coating goes.
• Bushfire readiness: the ACT bushfire season generally starts in October. Dry leaves in gutters are an easy target for embers, which is why clear gutters are part of every bushfire plan, not only for homes on the edge of the bush. If you live near a reserve or on the urban fringe, have gutters cleared before summer and again after any big leaf drop.

6. Know What You Will Do When a Storm Hits

The best time to plan for a storm is before one arrives. Know where your roof space access is, keep a torch and a couple of buckets handy, and save the ACT SES number (132 500) for storm help. We have written a separate guide on what to do after a hailstorm, including how to document damage for your insurer.

When a Professional Inspection Makes Sense

A ground-level check will catch the obvious problems. It will not catch a cracked tile hidden behind a ridge, a failing flashing on the back slope, or mortar that is holding on by habit. We recommend a professional inspection in spring if:

• your roof has not been looked at properly in the last few years
• you found a new stain or leak over winter
• your tile roof is more than 15 years old and has never had its ridges re-bedded
• you are buying a home and want to know what you are taking on before summer

Our roof inspection covers every accessible part of the roof and gives you a written report with photos and recommendations in priority order, so you know what needs doing now and what can wait. We explain what we find and why it matters, and every repair we carry out comes with our 5-year workmanship guarantee.

Call us on (02) 5133 5608 or book an inspection online. If you would like a price guide first, you can request a free estimate online with a description and a few photos, no visit needed. We cover all ACT suburbs, Mon-Fri.