Guides
Skylight and rooflight guides
Longer reads on planning, building rules, costs and choosing the right glass.
- GUIDES:
- 22
- GROUPED:
- by service
Featured
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SKYLIGHTS AND ROOFLIGHTS
Planning permission for skylights and rooflights in Wales
Which Welsh rules let a rooflight go in without an application, which land removes that permission, and who can confirm the answer for your address. 10 min read
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ROOF LANTERNS
Roof lanterns and planning permission in Wales
Why a lantern stands apart from the simple rooflight rule, which land and homes change the answer, and what Building Control adds. 10 min read
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FLAT ROOF ROOFLIGHTS
Flat rooflights: planning and Building Regulations in Wales
Two separate checks decide a flat rooflight in Wales: what the council lets you change, and what building control wants to see built. 11 min read
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ROOF WINDOWS
Roof windows and the Building Regulations in Wales
A roof window turns a sloping ceiling into an opening, and four Welsh documents then have something to say about it: energy, escape, ventilation and glazing safety. 10 min read
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VELUX WINDOWS
VELUX size codes explained
A short code on a metal plate gives the width and height VELUX lists for your window. Where to find it, how to read it against a list, and what it leaves for the survey. 11 min read
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ELECTRIC OPENING ROOFLIGHTS
How rooflight rain sensors work
What a rain sensor reacts to, what the room goes through while the motor works, and what to check so the window is shut when you need it shut. 11 min read
Skylights and rooflights 2
- GuidePlanning permission for skylights and rooflights in WalesWhich Welsh rules let a rooflight go in without an application, which land removes that permission, and who can confirm the answer for your address.10 min read
- GuideBuilding Regulations for skylights and rooflights in WalesWhat a new or replacement roof opening sets off under the Welsh Building Regulations: structure, heat loss, escape, air and glass safety, and the body that checks the work.10 min read
Roof lanterns 2
- GuideRoof lanterns and planning permission in WalesWhy a lantern stands apart from the simple rooflight rule, which land and homes change the answer, and what Building Control adds.10 min read
- GuideRoof lantern sizes: matching the lantern to the roomWhich number counts, how the room underneath sets the size, and what the flat roof around the lantern still has to do when it rains.11 min read
Flat roof rooflights 2
- GuideFlat rooflights: planning and Building Regulations in WalesTwo separate checks decide a flat rooflight in Wales: what the council lets you change, and what building control wants to see built.11 min read
- GuideThe best rooflight for a flat roof, and how to chooseFixed or opening, flat glass, dome or lantern: the room, the roof's fall and the glass decide which one earns its place on a flat roof.11 min read
Roof windows 2
- GuideRoof windows and the Building Regulations in WalesA roof window turns a sloping ceiling into an opening, and four Welsh documents then have something to say about it: energy, escape, ventilation and glazing safety.10 min read
- GuideCentre-pivot or top-hung: choosing how a roof window opensWhich edge the sash turns on decides where the glass goes when you open it, what stands under the sill, and how the window counts for air and for escape.12 min read
VELUX windows 2
- GuideVELUX size codes explainedA short code on a metal plate gives the width and height VELUX lists for your window. Where to find it, how to read it against a list, and what it leaves for the survey.11 min read
- GuideA like-for-like VELUX swap: what happens on the dayWhat stays the same, what you can still choose, which rules follow the job, and what the survey looks at before a fixed written quote.11 min read
Electric opening rooflights 2
- GuideHow rooflight rain sensors workWhat a rain sensor reacts to, what the room goes through while the motor works, and what to check so the window is shut when you need it shut.11 min read
- GuideWiring and power for an electric rooflightWhere the power comes from, the route a cable takes to reach the sash, where the switch goes and how the whole run is hidden in the reveal.11 min read
Energy-efficient rooflights 2
- GuideRooflight U-values explainedWhat a U-value counts, why the figure for the glass and the figure for the whole unit can differ, and which numbers Welsh guidance sets for a roof window and a rooflight.10 min read
- GuidePart L in Wales: what it means for a rooflightTwo limits, one Welsh document, and the questions that decide which of them applies to your roof.11 min read
Misted rooflight replacement 2
- GuideMisted rooflight: new glass or a whole new unit?Mist says the glass has failed. The frame, the kerb and the flashing decide whether the glass is all that has to go.11 min read
- GuideWhy rooflights mist up between the panesA sealed gap that has let moisture in, why a cloth cannot reach it, and how to tell it from steam and from a leak.11 min read
Walk-on rooflights 2
- GuideWalk-on rooflight load ratings explainedWhat a maker's rating covers, what will really stand on the glass, and the route the weight takes down into the roof.11 min read
- GuideAnti-slip walk-on glass: frit, etching and gripFrit, etching and the questions that tell you how a finished pane will feel underfoot when the weather turns.10 min read
Conservation rooflights 2
- GuideRooflights in Swansea's conservation areasWhere the lines fall, what the Welsh rule takes away inside them, and how a listed house or a council direction can narrow the road to a rooflight.10 min read
- GuideRooflights on listed buildings in Wales: consent and CadwWhere the work affects character, consent comes first: the council decides it, Cadw sits behind it, and the glass has to suit a roof the law treats with care.11 min read
Sun tunnels 2
- GuideRigid or flexible: choosing a sun tunnelA sun tunnel is only as good as its tube. Straight and short, or bent round a tank: how the two kinds compare and what the loft decides.11 min read
- GuideThe best rooms for a sun tunnelLandings, bathrooms, halls and wardrobes: the dark rooms a sun tunnel suits, the ones that need a different rooflight, and how to tell which is yours.11 min read
The guides go into the detail a service page can only touch on: when a rooflight needs planning permission in Wales, what Approved Document L (Wales) asks of new glazing, how condensation forms under glass and how to keep it in check. Read the one that matches your question, then use the form when you want a free survey of your own roof.
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