The short answer
Yes, you can, and a skylight usually lets in more aircraft sound than a wall window in the same room. The roof is thin, the glass sits at an angle facing the sky, and nothing stands between it and the flight path. A laminated acoustic inner pane, tight seals and a solid upstand bring it down. Plain thin glazing does not.
Why a roof opening hears the sky first
Aircraft sound arrives from above. A rooflight faces the direction it comes from, and the roof around it gives very little to slow it down.
A wall window looks sideways. Aircraft noise reaches it at a glancing angle, after crossing gardens, fences and the face of the house. A roof window or flat rooflight looks straight up. The sound arrives head on, with nothing in its way but the glass and the frame.
The roof build matters too. A typical loft room has a tiled roof over a timber rafter, a little insulation and a plasterboard lining. That is a light structure, and it lets through far more low rumble than a cavity wall would. Cut a rooflight into it and you add a second weak path, made of glass, which is a thin and stiff material that vibrates readily when low sound waves strike it.
That is why the loft bedroom is the room people mention. Early departures and late arrivals reach it at the hours when the house is otherwise still, and the room has fewer soft furnishings than a living room to absorb what gets in. If you live in Crawley, Horley, Charlwood or one of the villages on the approach, you will know the pattern already. Our page on rooflights under the Gatwick flight paths goes into how the routes sit over the borough.
None of this means a rooflight ruins a room. It means the glazing build is worth choosing with the sky in mind, which is a different job from choosing it for warmth alone.
What you actually hear, and why it differs from a passing car
Aircraft and road traffic do not sound the same through glass, and the difference explains why some rooflights cope better with one than the other.
A jet climbing out gives a broad, deep rush with a lot of low tone in it. Glass is poor at stopping low tone. Thin panes tend to pass it on, because the whole sheet moves a little like a drum skin. Higher, sharper noises such as a passing motorbike are easier for the same pane to hold back. So a unit that seems fine against the street can still let through the rumble of an aircraft overhead.
The other point is duration. A car passes in seconds. An aircraft builds slowly, peaks and fades over a longer stretch, and in a quiet room that long swell is the thing people notice. When it arrives every few minutes at dawn, it becomes the main feature of the morning.
| Sound source | Character | What helps most |
|---|---|---|
| Aircraft overhead | Deep, long swell | Mixed pane thickness, laminate |
| Road and rail | Steady, lower to mid tone | Laminate, tight seals |
| Rain on glass | Sharp, close taps | Thicker outer, damping |
The pattern in the last column is the useful part. The same two changes, differing pane thicknesses and a damped laminated layer, do most of the work against all three. Our guide to keeping road and rail noise out through a rooflight covers the ground-level side of the same problem.
The parts of a rooflight that let aircraft sound in
Four things decide how much gets through: the glass, the seals, the frame and the upstand. A weak link in any one undoes good work in the others.
The glass is the obvious one. A sealed unit made of two panes of the same thickness lets sound through at a single pitch where the two panes move together. Changing one pane so the two differ, and using laminated glass for the inner pane, breaks that matching. The interlayer inside the laminate is a soft plastic film that turns some of the vibration into a tiny amount of heat instead of passing it on. Our explainer on acoustic laminated glass for rooflights describes how the film works.
The seals come next. A gap you could not see with the lid closed is still a gap for sound. Old gaskets harden and shrink, and the opening pane of a roof window can sit slightly proud of the frame after years of use. A new unit with fresh continuous gaskets closes that path, and a failing seal is one reason to replace a unit instead of living with it.
The frame and upstand finish the job. On a flat roof, the kerb the rooflight sits on should be solid and fully insulated, with the lining inside carried right up to the glass. A hollow or thinly lined kerb acts like a small chimney for sound. On a pitched roof, the gap between the roof window frame and the rafters is filled and sealed so no open route remains from the loft void into the room.
Choosing a quieter build for a room under the flight path
The aim is a room where the aircraft are still there but no longer the loudest thing. That is a realistic target, and it comes from specification, not from one special product.
For a loft bedroom, the usual starting point is a laminated acoustic inner pane with an outer pane of a different thickness, fitted in a frame with continuous gaskets. A roof window is often the right product here, and our roof window installation page explains the options. For a kitchen extension, the flat glass version sits in a solid kerb with the same laminated inner pane.
Extra panes are not the first answer. A third sheet of glass adds weight and helps with heat more than with sound, which our answer on whether triple glazing makes a rooflight quieter sets out. The glass itself has its own comparison on laminated against toughened glass.
At the survey we stand in the room, listen, and note what we hear and when. That note goes into the written quiet spec with your quote, with the glass, seals and upstand each explained. You can see what the spec covers in general terms on our page about what goes into a quiet rooflight specification. It is worth reading before you compare quotes, because a quote that lists only a size and a colour has not considered sound at all.
One more practical point. Aircraft sound comes in most easily when a window is open. A closed, well-sealed unit does the quiet work. An opening rooflight lets you ventilate on warm nights, and the sound comes in with the air, so a room that needs both may use a separate vent path while the glass stays closed.
Plane questions people ask before they order
Will a blind or curtain stop the noise?
Not really. A blind softens the tone a little and cuts glare, but it does not stop the glass moving. The build of the unit does that. Blinds do help with early light, which is a separate question that we cover in our answer on whether a skylight will wake you at dawn.
Do skylights let in more noise than ordinary windows?
Generally yes, for the reasons above: they face the sky and the roof is light. A well-chosen build narrows the gap a good deal. Our answer on skylights and noise compared with windows goes through it.
Is a fixed unit quieter than one that opens?
A fixed unit has fewer seals and so fewer places for sound to pass. An opening unit can still be very good when the gaskets are continuous and the closing pressure is firm, and it gives you fresh air when the aircraft are quiet.
Can I test a rooflight before I buy it?
Standing under one in a finished room is the best guide, and a survey visit lets us describe the noise your room hears now. When you are ready, get a quote and we will write the glazing choice into the spec. The wider service sits on our skylight and rooflight installation page.