Heritage Window Sizes
Clear Viewable (mm)
(w) x (h) 517 x 1071
Overall Size (mm)
(w) x (h) 836 x 1409
Internal Rafter (mm)
(w) x (h) 645 x 1198
Although no longer a stock product our original range of Lumen Conservation rooflights can still be purchased on a 5 week delivery time for customers wishing to match previous orders.
Sizes and prices for the original Lumen Conservation rooflight can be viewed here
All Lumen rooflights are manufactured entirely in Great Britain. It is not only this, but our attention to detail and use of quality materials that sets Lumen apart from the rest.
Whether a stock size or bespoke our aim is to provide you with the best rooflights on the market. We combine leading design with the finest craftsmanship to offer rooflights that are as unique as your project.
Every Lumen rooflight is hand finished at our factory in Devon and is supplied with Pilkington Activ self-clean solar control double glazed units, American ash interior linings and British manufactured winding mechanisms.
Not just good on the inside, our Lumen Heritage range is ideal for installation in any project but especially period properties, Listed buildings, barn conversions or areas where flush fitting glazing is required. The low profile design remains unobtrusive and maximises light and ventilation into the space below.
The reality is: yes our rooflights are likely to be more expensive than others. But it’s a beautiful rooflight, not mass produced or constrained by material costs, and the interior is far more detailed and exceptional than most other rooflight manufacturers.
In a world where price is regularly put ahead of quality; we’d like to think that Lumen is the rooflight your building would choose.
Lumen Heritage Rooflight
Style / Application:
Flush fitting, low profile conservation rooflight
For installation into roof pitch between 17 & 70 degrees
Suitable for slate, clay tile, pantile installation
Metal roof application available on request
3mm mild steel external framing
American ash interior timber lining
MNA03E black textured powder coat finish
C3 application as standard (located over 5km from coast or salt water estuary)
4mm toughened Pilkington Activ sunshade neutral outer
16mm black warm edge spacer with argon gas
4mm toughened Pilkington Optitherm S1 inner
Silicone edge sealed
Double glazed units bedded on to a high security glazing tape
Internally glazed casement
Silicone edge sealed
2mm mild steel external
American ash internal
Standard operation is screwjack winding mechanism with 250mm opening length in natural brass or chrome plated
Hand mechanism for within reach / Pole mechanism for out of reach
Additional crank pole 1.8m-3.0m telescopic available upon request
Fixed and electric actuation available upon request
Pleated blinds in both manual or electric operation
BS EN 14351-1:2006 + A1:2010