It’s probably the question we’re asked more than any other.
“We love the idea of a pergola, but won’t it make our kitchen dark?”
If your kitchen, dining room or family room opens onto your patio, it’s a perfectly sensible concern. Nobody wants to invest in an outdoor living space only to feel they’ve lost the bright, open room they enjoy inside.
The good news is that, in most cases, the opposite is true.
After installing hundreds of bioclimatic pergolas across Lincolnshire and beyond, we’ve found that homeowners are often surprised by just how much natural light they still have and, in some cases, how much brighter the room actually feels.
Why a Bioclimatic Pergola Is Different
Unlike a traditional solid patio roof, a bioclimatic pergola has adjustable aluminium louvres.
That means you’re not permanently blocking daylight. Instead, you’re controlling it.
The louvres can be rotated throughout the day to let sunlight in, reduce glare or provide welcome shade during the hottest part of summer. This ability to manage daylight is one of the key benefits of a bioclimatic roof and is one reason architects increasingly use adjustable louvre systems in modern homes

Image Rase Outdoor Living
The Colour of the Roof Matters More Than People Think
One of the biggest misconceptions is that every pergola creates a dark canopy.
In reality, choosing white louvres makes a remarkable difference.
Rather than absorbing light, the white surface reflects daylight back underneath the pergola and towards your house. This is based on the same daylighting principles used in architecture, where reflective surfaces are used to bounce natural light further into a room.
It’s something we’ve seen repeatedly on completed projects.
The Secret Is in the Blade Angle
Most people imagine the roof either fully open or completely closed.
In everyday use, that’s rarely how homeowners operate their pergola.
We’ve found that setting the blades at around 5 to 15 degrees often gives the perfect balance. Rather than blocking daylight, the angled louvres allow light from beyond the pergola to travel underneath the roof and into the kitchen or dining room.
It’s a small adjustment that makes a surprisingly big difference.
What About Dark Winter Days?
Let’s be honest.
On a gloomy December afternoon, the sky itself isn’t producing much daylight.
Whether you have a pergola or not, it will feel darker outside.
That’s where integrated LED lighting comes into its own.
Rather than turning the lights up brightly, we recommend running the low wattage LEDs at a gentle level. Instead of lighting just the pergola, they softly illuminate the outside space, making the garden feel brighter and extending the feeling of the room beyond the glass.
The result is often a much warmer view than looking out onto a dark patio.

Image Rase Outdoor Living
A Real Example from Louth
One of our favourite examples is a recent installation in Louth.
When you stand inside the kitchen, most people expect the pergola to dominate the view.
Instead, what you actually notice is how little of the structure you can see.
Seeing a real installation is often far more reassuring than looking at computer-generated images.

The Dambusters Pub Case Study
Commercial projects often teach us just as much as residential ones.
At the Dambusters pub, we installed a pergola on an L-shaped section of the building.
The rooms inside had always felt relatively dark.
Rather than simply fitting the pergola in the obvious orientation, we carefully positioned the louvres so they followed the movement of the sun throughout the day.
The result was exactly what we hoped for.
Natural light was directed much further into the building, creating brighter internal spaces while still giving customers comfortable shade outside.
It’s a good reminder that the design of a pergola is just as important as the pergola itself.

How Much Sky Do You Actually Lose?
This is another surprise for many homeowners.
Imagine standing in your kitchen looking towards a pergola that’s 4.5 metres deep.
Although the structure is large, your line of sight only really includes the front edge of the roof. In practice, you’re only seeing around the first 500mm of the pergola.
The rest sits beyond your viewing angle.
That means only a relatively small strip of sky is actually obscured.
Once people see this in person, they often realise the impact on their outlook is far less than they imagined.
The Trade-Off Is Usually Worth It
Every project is different, and we’ll always assess how a pergola will affect your particular property before recommending a design.
But for most homeowners, the benefits far outweigh the small amount of sky that’s lost.
You gain:
- A comfortable outdoor room that can be used for much more of the year.
- Shade when your kitchen gets too hot in summer.
- Protection from rain without losing control over daylight.
- A better connection between the house and the garden.
The question isn’t really whether you’ll lose a little bit of sky.
It’s whether that small compromise is worth gaining an outdoor living space you’ll use almost every day.
For the vast majority of our customers, the answer is a definite yes.
If you’re worried about losing light, we’d be happy to show you completed projects where you can see the results for yourself. There’s nothing more reassuring than standing inside a finished home and experiencing the difference first hand.