Rooflights
Rooflights and sun tunnels
Centre-pivot and top-hung units set into the rafters, flashed with the manufacturer kit sized to your tile profile rather than sealed in with mastic.
How it works
Almost every leaking rooflight we are called to is not leaking through the glass. It is leaking at the head, where somebody ran a bead of mastic instead of fitting the flashing kit and let the tiles lap the wrong way. Mastic is a two-year fix on a thirty-year roof.
The kit has to match the covering: a slate flashing on a deep-profile tile leaves a gap you can see daylight through. We dress the underlay into the frame, fit the kit for that tile, and if the unit is more than about twenty years old we will tell you to change it while the roof is open, because doing it later costs more than doing it now.
Change the rooflight while the roof is open. Flashing a new unit into a finished roof means lifting three courses and never quite matching the weathering on the tiles you put back.
- Type
- Centre-pivot, top-hung or fixed
- Flashing
- Manufacturer kit, matched to tile or slate profile
- Underlay
- Dressed into the frame, not cut short of it
- Pitch range
- 15 to 90 degrees depending on unit
- Glazing
- Laminated inner pane, low-e, argon, U 1.2 W/m2K
- Guarantee
- 10 years on the unit, 10 years on the flashing
