Guides
Guides to skylights and rooflights
Longer reads on choosing, fitting and living with a rooflight, grouped by the kind of unit.
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One guide from each of six topics, the ones we are asked about first.
GuideWhat happens on a rooflight surveyWhat happens on a rooflight survey in Sheffield: what we check inside and on the roof, what we measure, and what your fixed written quote contains.
Guide · Roof LanternsFitting a roof lantern to an existing flat roofFitting a roof lantern on an existing flat roof: trimming the joists, building the upstand and…
Guide · Flat Roof RooflightsFlat rooflight kerbs and upstands explainedWhat a flat rooflight kerb does, how a skylight upstand is built and sealed into felt…
Guide · Roof WindowsRoof window flashing kits explainedWhat a roof window flashing kit contains, why slate, tile and stone roofs need different skylight…
Guide · VELUX WindowsVELUX size codes explainedVELUX size codes explained: the letter gives the width, the digits give the height. How to…
Guide · Electric & Opening RooflightsElectric or solar rooflights?Electric vs solar rooflight: how each is powered, where a solar skylight struggles on Sheffield roofs…
Skylights and rooflights in general
1
Roof Lanterns
1
Flat Roof Rooflights
1
Roof Windows
1
VELUX Windows
1
Electric & Opening Rooflights
1
Energy Efficient Rooflights
2
Guide · Energy Efficient RooflightsRooflight U-values and Part LRooflight U-value explained: the Part L 2021 limits for roof windows and rooflights in existing homes…
Guide · Energy Efficient RooflightsDouble or triple glazed rooflights?Triple glazed rooflight or a double glazed skylight? Compare weight, light, Part L limits and replacement…
Misted & Failed Rooflight Units
2
Guide · Misted & Failed Rooflight UnitsReplacing just the glass in a rooflightRooflight glass replacement in an existing frame: when a skylight glass swap is enough, when the…
Guide · Misted & Failed Rooflight UnitsMisted glass or leaking flashing: telling them apartRooflight leak or misting? How to tell a failed sealed unit from a leaking skylight flashing…
Walk-On Rooflights
2
Guide · Walk-On RooflightsWalk-on rooflight glass and loadsWalk-on rooflight load ratings explained: toughened and laminated glass, point and distributed loads, grip finishes and…
Guide · Walk-On RooflightsWalk-on rooflights in roof terraces and deckingWalk-on rooflight roof terrace guide: flush or kerbed glass, decking, falls, drainage, structure and planning, for…
Conservation Rooflights
2
Guide · Conservation RooflightsConservation rooflights for listed buildings and stone roofsConservation rooflight for a listed building or stone slate roof in Sheffield: consent, the Peak District…
Guide · Conservation RooflightsReplacing an old cast-iron rooflightReplacing an old cast-iron rooflight in Sheffield: why Victorian skylights fail, like-for-like or conservation rooflight, consent…
