Built-up felt waterproofing with layered protection
Built-up felt systems provide multi-layer waterproofing for commercial roofs where durability and proven detailing are required. DF Roofing delivers built-up felt roofing across Essex, London and the South East.
We coordinate insulation, vapour control and detailing to suit the building's use and maintenance needs.
Where built-up felt works well
Built-up felt remains a strong option for refurbishment and new build projects needing robust, layered protection.
Typical built-up felt scope includes:
- Multi-layer felt build-ups
- Refurbishment and replacement
- Parapet and edge detailing
- Rooflight and penetration interfaces
Our Built Up Felt Process
A coordinated felt roofing delivery from survey to handover.
Survey and diagnostics
We assess roof condition, access and moisture to confirm the right felt build-up.
01
Specification and design
Build-ups, insulation and detailing are coordinated with the wider design team.
02
Pre-start coordination
We align access routes, safety planning and interface details with the main programme.
03
Installation and detailing
Installation focuses on layered membranes and clean detailing around edges.
04
QA and handover
We carry out inspections and provide handover documentation with maintenance guidance.