// FLAT ROOF CONSTRUCTION
Flat Roof Construction
Built strong from the start.
Structural timber flat roofs built accurately to specification, ready for the chosen waterproofing system and the next stage of the project.
Flat Roof Carpentry
A reliable flat roof starts with the structure underneath
At How To Cut Ltd, we construct the structural timber elements of flat roofs for residential, contractor and developer-led projects. Every roof is set out carefully and built in line with the project drawings, structural requirements and wider build programme.
From joist installation and trimming around openings to forming falls, upstands and structural details, our focus is on creating a solid, accurate base for the waterproofing and finishing systems that follow.
As with every How To Cut project, the work is driven by our three core values: quality, communication and passion.
What We Cover
Structural flat roof carpentry
The exact scope will depend on the drawings and specification, but our flat roof carpentry can include the key structural elements needed to create a sound and accurately formed roof.
Joist Installation
Structural roof joists installed accurately to the required centres, levels and engineer’s specification.
Falls & Firrings
Roof falls formed carefully to help direct water towards the designed drainage points and outlets.
Openings & Trimmers
Accurate trimming around rooflights, access points and other openings in accordance with the project design.
Upstands & Details
Structural timber details formed around edges, abutments and upstands ready for subsequent roof finishes.
Deck Preparation
Roof structure prepared to create a consistent, well-supported base for the specified decking and waterproofing build-up.
Project Coordination
Close communication with the wider site team so structural details, materials and programme requirements stay aligned.
How We Work
From drawings to a roof ready for the next stage
Good flat roof construction depends on getting the details right before the waterproofing ever begins.
Drawings & Scope
We review the information provided and confirm the structural carpentry requirements.
Accurate Setting Out
Levels, openings, structural positions and key dimensions are set out before installation begins.
Structural Carpentry
The timber roof structure is assembled carefully and coordinated with the wider project.
Ready For Finishes
The completed structure is left ready for the specified deck, waterproofing and finishing works.
Why How To Cut
Built with the wider project in mind
A flat roof is rarely an isolated part of a build. It needs to work with the structure below it, the openings within it and the waterproofing system that follows. Our role is to make sure the carpentry is accurate, practical and ready for those next stages.
With more than 15 years of structural carpentry experience, we understand the importance of getting the small details right early. That means clear communication, careful setting out and workmanship we are proud to put the How To Cut name to.
Talk To Us About Your ProjectPlanning a flat roof project?
Send us the drawings or tell us what you’re working on and we can discuss the structural carpentry required.