By the Patios Joondalup team
Local patio builders, Joondalup & Perth's Northern Suburbs
AI Overview
Single-skin Colorbond is the affordable patio roof but radiates heat and is loud in rain. Insulated Solarspan has a foam core that keeps the space cooler and quieter and gives a finished ceiling, for a higher price. Choose Colorbond for value, Solarspan for a year-round outdoor room.
Key takeaways
- Colorbond is single-skin steel, the most affordable option
- Solarspan is insulated with a foam core and finished ceiling
- Insulated roofing stays cooler in summer and quieter in rain
- Solarspan suits spaces you want to use year round
- Both use quality steel and come in a range of colours
- Insulated panels allow ceiling fans and recessed downlights to be fitted
The Core Difference
From the driveway they can look the same, but the two roofs perform very differently on a hot afternoon or in heavy rain.
Single-skin Colorbond is one sheet of steel. Insulated Solarspan is a sandwich panel with a closed-cell foam core between two steel skins, which changes how heat and sound pass through.
Cooler
Insulation blocks radiant heat
Quieter
Foam deadens rain noise
Finished
Smooth ceiling underneath
Value
Colorbond costs less upfront
Single-Skin Colorbond in Detail
Colorbond steel is the standard roofing material across Australia, and it has earned its place. It is durable, available in a wide colour range, easy to work with and has decades of proven performance in the Australian climate.
Where Colorbond Works Well
- Carports and utility covers where comfort is secondary
- Budget-conscious builds where value is the priority
- Spaces used mainly in the mornings or evenings when the sun is low
- Side passages and garden tool sheds
The Limitations to Know
- A single steel skin absorbs heat and radiates it downward in summer
- Rain on a steel roof can be loud, especially heavy downpours
- The underside shows exposed framing and purlins, not a finished ceiling
- Less suitable for spaces you want to sit in through the middle of a summer day
Insulated Solarspan in Detail
Solarspan is an insulated sandwich panel made up of two Colorbond steel skins bonded to a rigid foam core. The foam acts as a thermal and acoustic barrier between the hot steel on top and the space below.
The underside of the panel is a smooth, factory-finished surface that acts as the ceiling of your outdoor room. There is no exposed framing, which means you can fit recessed downlights, a ceiling fan or a misting system flush to the ceiling.
Where Insulated Roofing Excels
- Main entertaining areas used through summer
- Outdoor kitchens and dining areas where you spend hours outside
- Any space where rain noise would be disruptive
- Rooms you want to feel like an extension of the house interior
- Spaces where you plan to install a ceiling fan or downlights
Insulated panels and ceiling fans
Because the underside of Solarspan is a finished panel, ceiling fans can be mounted directly to it. A ceiling fan on an insulated patio makes a dramatic difference to comfort in summer by moving air across the space.
Side-by-Side Comparison
| Feature | Colorbond Single-Skin | Solarspan Insulated |
|---|---|---|
| Cost | More affordable | Higher upfront cost |
| Summer heat | Radiates heat downward | Blocks most radiant heat |
| Rain noise | Louder | Significantly quieter |
| Ceiling finish | Exposed framing | Smooth finished surface |
| Ceiling fan fitting | Requires bracket | Mounts flush to panel |
| Downlights | Requires separate lining | Fits flush |
| Colour range | Full Colorbond range | Full Colorbond range |
| Lifespan | Long | Long |
General comparison for a standard patio installation.
Which Roof Suits You
If the patio is mostly for shade and the budget is tight, single-skin Colorbond does the job well. It has covered millions of Australian homes and will last for many years with minimal maintenance.
If you want to cook, dine and relax under it through summer, insulation makes the space genuinely more usable. The foam core cuts the radiant heat that makes a steel roof uncomfortable at midday and reduces the rain-on-a-tin-roof effect to a low background sound.
The two roofs look alike from the driveway. The difference is whether you can actually sit under it in February.
A Practical Guide to Choosing
- Choose Colorbond if the space is a carport, utility cover or secondary area
- Choose Solarspan if this is your main entertaining area
- Add a ceiling fan to either, but insulated panels make the fan much more effective
- Budget for insulation on the section you sit under most, even if the rest is Colorbond
FAQs
Frequently Asked
If you want to use the space through a Perth summer, insulated Solarspan is usually worth it because it blocks radiant heat and deadens rain noise. For a simple shade cover, Colorbond is fine.
Yes. Solarspan has a smooth underside that acts as a finished ceiling, ideal for recessed downlights and ceiling fans, with no exposed framing.
Yes. A common approach is to use insulated panels over the main sitting area for comfort and single-skin Colorbond over an adjoining utility area or carport section to keep costs down.
Yes. Both single-skin Colorbond and Solarspan insulated panels are available in the full range of Colorbond colours, so your roof can match your home's existing colour scheme.
Solarspan insulated panels are heavier than single-skin Colorbond, so the beam and post sizing is calculated to carry the additional load. We include the structural engineering in every insulated patio quote, so the frame is always sized correctly for the panel choice.
Retrofitting insulation below an existing Colorbond sheet is possible in some cases, but a roof replacement to proper insulated panels is usually the better long-term option. We assess your existing structure and give you an honest recommendation on the most practical approach.
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