VELUX logo
Explore our products
Tools and services
Support
Partner resources
Attic bedroom with sloped ceiling and open VELUX roof windows.
VELUX dormer solutionsRoom in the roof

Maximise daylight and usable space in "Room in the roof" designs

UK social housing and new build programmes are under pressure to deliver healthier homes, where damp, mould, and indoor air quality are real concerns, and where upper floors can otherwise become dark, compromised spaces.

VELUX dormer solutions help you turn that roof volume into bright, usable living area, supporting comfortable room proportions and enabling natural ventilation through openable roof windows.

Daylight and ventilation

Room to grow
VEL00569 Velux Brochure_A4_V5 (005).pdf
Room in the roof: Designing adaptable homes for healthier living

Room in the roof solutions are increasingly used to unlock the roof space and create bright, usable living areas. By improving daylight, ventilation and head height, they help turn the upper floor into a comfortable part of the home rather than a compromised loft.

Modern roof with VELUX windows and dark ceramic tiles.

Dormer

Consisting of four or six roof windows in total, divided into two horizontal rows, the VELUX dormer brings a dramatic increase in natural daylight and an amazing feeling of openness. This innovative solution adds up to 3 times more daylight compared to traditional dormers with the same glazing area.

Modern roof with two VELUX roof windows and dark ceramic tiles.

Mini dormer

For customers looking for a dormer solution with 1, 2, or 3 roof windows alongside each other, our mini dormer is the ideal choice. It enhances the sense of space and admits up to 2.5 times more daylight than traditional solutions with a similar glazing area.

Supports Future Homes Standard objectives
VELUX Dormer and Mini Dormer solutions are designed to support Future Homes Standard ambitions through a fabric‑first approach and carefully engineered installation details. Triple‑glazed roof windows, insulated flashings and airtight detailing help reduce heat loss, manage condensation risk and support long‑term energy performance, when assessed as part of a complete dwelling design.
Attic living room with VELUX roof windows bringing daylight onto a grey sofa and TV area.
A fully engineered system that reduces construction complexity
VELUX Dormer and Mini Dormer combine roof windows, prefabricated base units, flashings and insulation into a coordinated solution from a single manufacturer. This systemised approach removes bespoke detailing, external cladding and leadwork, resulting in simpler installation, cleaner roof integration and a more predictable construction process with lower long‑term maintenance.
See technical product information
Attic living room with VELUX roof windows bringing daylight onto a grey sofa and TV area.
Designed for simple, efficient installation
Developed with installers and designers in mind, VELUX Dormer solutions support fast, predictable installation with minimal disruption. Installation can often be completed within a single day, with the roof opened only briefly and work frequently carried out from the inside, making the system suitable for both new‑build and refurbishment projects.
Attic living room with VELUX roof windows bringing daylight onto a grey sofa and TV area.
High thermal performance
High fabric performance is supported through triple‑glazed roof windows, insulated Pro+ flashings with BDX collars and vapour barrier collars for airtight installation. Together, these elements help reduce heat loss, eliminate cold bridges and support compliance with current and future building performance requirements.
Attic living room with VELUX roof windows bringing daylight onto a grey sofa and TV area.
Attic living room with VELUX roof windows bringing daylight onto a grey sofa and TV area.

Case stories

Attic bedroom with sloped ceiling and VELUX roof windows.
Proven in partnership:
Starship, Onward & VELUX

At Mungo Park Way (Wallasey, Wirral), Starship, Onward, and VELUX delivered 13 "Rent to Buy" homes and used the "Room in the roof" approach to bring daylight and ventilation into the upper-floor spaces. The dormer solution was selected for daylight performance and for integration into a panelised construction approach.

Read the full case story 

Together we create

Discover how a VELUX partnership adds value to your investment, and how bright, healthy and energy-efficient homes sell faster.

Together, we create great living spaces.

Book a meeting
Attic bedroom with sloped ceiling and VELUX roof windows, cozy decor.