Full Cassette vs Half Cassette vs Open Awnings: Which Type Is Right for You?

If you live in a region with harsh winters, heavy rain, or coastal salt air, a full cassette awning is your best bet — its enclosed housing protects both the fabric and roller mechanism, extending lifespan by 5 to 8 years over open models. Half cassette awnings suit moderate climates where you want decent protection without paying top dollar. Open awnings work fine for sheltered patios in dry, mild regions where budget matters most.

I've inspected hundreds of awnings over the years, and the choice almost always comes down to two things: your local weather and your budget. Let me break down what each type delivers.

What Exactly Is a Full Cassette Awning?

Picture a retractable awning where, once you retract it, the fabric rolls into a completely sealed housing. Both the fabric and the roller mechanism sit inside a protective aluminum cassette. Nothing is exposed. Rain, wind, dust, bird droppings — none of it touches the working parts.

This matters more than most people realize. Solution-dyed acrylic fabric (the premium stuff from brands like Markilux and Weinor) lasts 12 to 15 years inside a full cassette. The same fabric on an open awning? Expect 5 to 7 years before fading and mildew become real problems.

Full cassette models typically cost between $1,500 and $5,000+, with motorized versions pushing toward the higher end. Standard widths range from 10ft to 20ft, with projections of 8 to 13ft.

Pros:
- Maximum weather protection for fabric and mechanism
- Longest lifespan (15+ years with maintenance)
- Clean, streamlined look when retracted

Cons:
- Highest upfront cost
- Heavier — requires a strong wall mounting surface
- Limited design flexibility

Half Cassette: The Middle Ground

Half cassette (sometimes called semi-cassette) awnings cover the top portion of the roller and fabric. The bottom remains exposed. Think of it as a hat for your awning — it keeps the worst of the rain off but doesn't fully seal the system.

These typically run $900 to $2,500, making them the sweet spot for homeowners who want protection without the full-cassette price tag. In my experience, they perform well in temperate zones — places like the Pacific Northwest or coastal UK where rain is frequent but extreme cold is rare.

The trade-off? The exposed bottom lets dirt and moisture work their way in over time. You'll want to inspect and clean the mechanism annually rather than every couple of years.

Pros:
- Good protection at a moderate price
- Lighter than full cassette — easier installation
- Decent lifespan (8 to 12 years)

Cons:
- Bottom exposure invites weather damage
- Mechanism needs more frequent cleaning

Open Awnings: Simple and Budget-Friendly

Open awnings have no protective housing. The fabric rolls up on an exposed roller, fully visible to the elements. They're the cheapest option, typically $400 to $1,200, and make sense in specific scenarios.

Got a covered patio where the awning sits under an existing roof overhang? An open awning works great there. Live somewhere dry and warm year-round, like parts of Arizona or Southern Spain? You probably don't need the extra protection a cassette provides.

What most people miss is that open awnings still need retraction in bad weather. Without a cassette, nothing protects the fabric when rolled up. A single winter storm with freezing rain can damage fabric and corrode the mechanism.

Pros:
- Lowest cost — often half the price of a full cassette
- Lightest, easiest to mount
- Simple mechanism with fewer parts to fail

Cons:
- Shortest lifespan (5 to 7 years)
- Fabric and mechanism fully exposed
- Not suitable for harsh or coastal climates

How to Choose: A Quick Framework

Ask yourself three questions. What's your climate like? How much can you spend upfront? And how long do you plan to stay in your home?

If you're in a harsh climate and plan to stay 10+ years, the full cassette pays for itself. A $3,000 model lasting 15 years costs roughly $200 per year. A $700 open awning lasting 6 years costs $117 per year — but you'll deal with fabric replacements and more frequent cleaning.

Most quality brands use Somfy motors, which integrate with Alexa and Google Home. Pair that with a wind sensor (auto-retracts at Beaufort scale 5 to 6) and you've got a hands-free system that protects itself.

FAQ

Is a full cassette awning worth the extra cost?

In harsh or coastal climates, yes. The cassette extends fabric life by 5 to 8 years and protects the mechanism from corrosion. In dry, mild climates, it offers diminishing returns.

Can I convert an open awning to a cassette later?

Not really. The cassette is part of the structural design. You'd need to replace the entire unit, so if you think you might want one later, buy it now.

Do half cassette awnings work with motorized systems?

Absolutely. Most half cassette models offer Somfy motors and smart home integration, just like full cassette versions. The motor sits inside the top cover for reasonable protection.