Rooflight and Skylight Guides
Plain-English guides to skylights and rooflights: how they work, what suits which room, and what the rules say.
Roof Lantern Size GuideSizing a roof lantern to the room below: which area to measure, how ceiling height and aspect shift the answer, and how tall it will stand.
Framed vs Frameless Flat RooflightsHow framed and frameless flat rooflights differ in edge heat loss, drainage, sightlines and ageing, and which suits which roof.
Types of Roof WindowCentre pivot, top hung, side hung and balcony roof windows, and the rooms and roof pitches each opening type suits.
VELUX Window Sizes and CodesHow to read VELUX size and type codes from the data plate, decode older generations and match a replacement window.
How Electric Rooflights WorkThe actuator, control unit and power supply inside an electric rooflight, and what happens from button press to sealed shut.
Rooflight U-Values ExplainedWhat a rooflight U-value measures, centre-pane versus whole-unit figures, and why the horizontal assessment changes the number.
Roof Lantern Installation in Cambridge 13
- Roof Lantern Size Guide
- Aluminium vs uPVC Roof Lanterns
- Roof Lantern Glass Options
- The Structural Opening for a Roof Lantern
- Planning Rules for Roof Lanterns
- Roof Lantern Orientation and the Sun
- Roof Lantern vs Flat Rooflight
- Roof Lanterns for Kitchen Extensions
- Roof Lanterns for Orangeries
- The Roof Lantern Installation Process
- Roof Lantern Colours and Finishes
- Controlling Heat and Glare Under a Roof Lantern
- Roof Lantern Styles
Flat Roof Rooflight Installation in Cambridge 13
- Framed vs Frameless Flat Rooflights
- Fixed vs Opening Flat Rooflights
- Flat Rooflight Upstands Explained
- Flat Rooflight Sizes
- Positioning a Flat Roof Skylight
- Rooflights for Single-Storey Extensions
- Flat Rooflights and Roof Coverings
- Planning Multiple Flat Rooflights
- Flat Rooflight Glazing Choices
- Skylights for Side-Return Extensions
- Linear and Modular Rooflights
- Rooflights Over Kitchen Islands
- Flat Roof Skylight Fitting Step by Step
Roof Window Installation in Cambridge 13
- Types of Roof Window
- Positioning a Roof Window in a Room
- Roof Windows for Loft Conversions
- Roof Windows and Fire Escape Rules
- Roof Window Flashings
- Roof Windows for Loft Bedrooms
- Roof Window Glazing Options
- Roof Window Ventilation
- Roof Windows for Low-Pitch Roofs
- Roof Windows in Vaulted Ceilings
- Roof Window Combinations
- Splayed Reveals for Roof Windows
- Trimming Rafters for a Roof Window
VELUX Window Installation in Cambridge 13
- VELUX Window Sizes and Codes
- VELUX Flashing Types Explained
- Replacing an Old VELUX Window
- How to Identify Your VELUX Window Generation
- VELUX INTEGRA Electric and Solar Windows
- VELUX Blinds Guide
- VELUX CABRIO Balcony Windows
- VELUX Conservation Windows
- VELUX Insulation Collars and Installation Kits
- VELUX Flat Roof Windows
- VELUX ACTIVE Indoor Climate Control
- VELUX Window Ranges Compared
- The VELUX Window Installation Process
Electric and Opening Rooflight Installation in Cambridge 13
- How Electric Rooflights Work
- Rooflight Rain and Wind Sensors
- Wiring an Electric Rooflight
- Solar Powered Roof Windows
- Smart Home Control for Rooflights
- Using Rooflights for Ventilation
- Sliding Rooflights
- Hinged Opening Rooflights
- Rooflight Roof Access Hatches
- Manual vs Electric Opening Rooflights
- Stack Ventilation with Rooflights
- Electric Rooflight Safety Features
- Electric Blinds for Opening Rooflights
Energy Efficient Rooflights in Cambridge 13
- Rooflight U-Values Explained
- Part L Requirements for Rooflights
- Double vs Triple Glazed Rooflights
- Solar Control Glass for Rooflights
- g-Value and Light Transmission
- Thermally Broken Rooflight Frames
- Rooflight Condensation
- Low-E Coatings and Argon Fill
- Rooflight Heat Loss in Winter
- Rooflight Overheating in Summer
- External Shading for Rooflights
- Upgrading Single-Glazed Rooflights
- Rooflights and EPC Ratings
Misted and Failed Rooflight Replacement in Cambridge 13
- Why Rooflights Mist Between the Panes
- Glass Only or Full Unit Replacement
- Replacing a Failed Roof Lantern
- Replacing an Old Flat Rooflight
- Replacing Polycarbonate Rooflights
- Replacing Dome Rooflights
- Replacing Rooflights During a Reroof
- Replacing Wired Glass Rooflights
- Replacing a Cracked Rooflight
- Replacing a Misted Roof Window
- Building Control for Replacement Rooflights
- Repositioning a Rooflight When Replacing It
- Replacing a Conservatory Roof with a Lantern
Walk-On Rooflight Installation in Cambridge 12
- Walk-On Rooflight Load Ratings
- Slip Resistance of Walk-On Glass
- Walk-On Rooflights for Roof Terraces
- Walk-On Glass Over Basements
- The Structural Opening for Walk-On Glass
- Drainage Around Flush Walk-On Rooflights
- Privacy Finishes for Walk-On Glass
- Walk-On Glass in Courtyards and Gardens
- Glare and Pools of Sunlight Below Walk-On Glass
- Thermal Performance of Walk-On Rooflights
- Walk-On vs Standard Flat Rooflights
- Building Regulations for Walk-On Rooflights
Conservation Rooflight Installation in Cambridge 14
- What Makes a Conservation Rooflight
- Rooflights in Cambridge Conservation Areas
- Listed Building Consent for Rooflights
- Article 4 Directions and Rooflights
- Steel vs Aluminium Conservation Rooflights
- Conservation Rooflight Sizes and Proportions
- Conservation Rooflights on Slate and Tile
- Conservation Rooflights for Barns and Cottages
- Conservation Rooflight Glazing Bars
- Rooflights for Victorian Terraces
- Front or Rear Slope: Placing a Conservation Rooflight
- Thermal Performance of Conservation Rooflights
- Heritage Statements for Rooflights
- Replacing Cast Iron Rooflights
Sun Tunnel Installation in Cambridge 13
- How Sun Tunnels Work
- Rigid vs Flexible Sun Tunnels
- Choosing a Sun Tunnel Diameter
- Sun Tunnels for Flat Roofs
- Sun Tunnels for Pitched Roofs
- Sun Tunnels for Halls and Landings
- Sun Tunnel vs Skylight
- Sun Tunnels with LED Lights
- Sun Tunnel Ventilation Kits
- Sun Tunnel Length and Bends
- Sun Tunnels for Bungalows
- Sun Tunnel Diffusers
- Where to Put a Sun Tunnel on the Roof
Skylights and rooflights in general 16
- Rooflight, Skylight or Roof Window: What Is the Difference?
- Planning Permission for Rooflights in Cambridge
- Building Regulations for Rooflights
- Which Way Should a Skylight Face?
- Choosing a Rooflight Installer
- Types of Rooflight
- Skylights for Dark Rooms
- Skylight Ideas for Extensions
- Rooflight Cleaning and Care
- Skylight Replacement Options
- The Rooflight Replacement Process
- Upgrading Skylights in a Loft Conversion
- Safety Glass in Rooflights
- Rooflight Privacy and Overlooking
- Skylight Replacement in Terraced Houses
- Adding Skylights to New-Build Homes
Book a light survey
Tell us about the room
- No obligation
- Light plan in writing
- 10-year guarantee