Industrial Flat Roofing
Anglia Decor are specialist flat roofing contractors installing single-ply membrane, built-up felt, liquid waterproofing and mastic asphalt systems across the UK. 20 to 30-year systems installed without disrupting your operation.
For tendering enquiries, please email info@angliadecor.co.uk
Flat Roofing Systems and Waterproofing Service
Flat roofing on commercial buildings faces constant pressure: standing water after rainfall, thermal cycling that cracks brittle membranes, UV degradation from the sun, wind uplift on exposed edges, and foot traffic from maintenance contractors and mechanical plant. Without a robust waterproofing system installed correctly from day one, water finds its way through. Pooling under insulation, rotting timber decking, triggering condensation inside the building envelope, and wasting energy as the thermal fabric breaks down. A failed roof isn't just a leak. It's a structural and business continuity risk.
Anglia Decor specifies systems based on your building's use and exposure. Flat roofing membranes (TPO, PVC, or EPDM) are fully adhered or mechanically fixed to warm-roof or cold-roof structures, with tapered insulation designed to shed water toward the gutters and downpipes. Built-up bituminous felt systems are torch-applied in overlapping layers, creating a durable waterproof blanket that handles movement and distributes weight evenly. Where foot traffic is light and cost matters, liquid roof coatings are sprayed or rolled on. It fills cracks, bridges movement joints, and cures to form a seamless membrane that's BBA certified and carries manufacturer guarantees of 20 to 30 years.
Mastic asphalt and fibreglass (GRP) systems are the premium heavy-duty option for roofs that see regular access and harsh UV exposure. Car parks, walkable terraces, and industrial facilities where durability and longevity justify the upfront cost. Every system includes vapour control, insulation graded for the building's thermal performance standard (Building Regulations Part L), and wind uplift testing to confirm the structure can handle the worst the British climate throws at it.
Flat Roof Installation and Refurbishment Contractors
Every roof job starts with a survey. Anglia Decor's team inspects the existing structure, checks membrane condition and joint integrity, measures water pooling and failed seals, and photographs problem areas so the specification reflects the actual building. Not a guess. On occupied buildings, we plan phased roof refurbishment or overlay work to minimise disruption: sections are completed in sequence, demarcation and hoarding keep weather and falling debris away from staff and customers, and tie-in detail is signed off before the next phase starts. That planning is what keeps a busy commercial site safe and operational during re-roofing.
Substrate preparation determines whether the roof lasts 15 years or 30 years. Loose old membrane, flashing failure, cracked concrete or timber decking, and moisture trapped in insulation must all be dealt with before new covering goes down. If they're not, water will find the same paths it took before. A full replacement strips the old system back to sound substrate, profiles the deck, applies a new vapour control layer if needed, lays tapered insulation for water drainage, installs fresh flashing and guttering, and applies the chosen membrane system. Typically mechanically fixed or fully adhered depending on exposure and deck type. Overlay work (applying new membrane over the old system) is faster and costs less, but only works if the substrate is sound and the old membrane isn't moving or holding moisture. Anglia Decor holds Sika, Bauder, and IKO manufacturer approvals, carries CHAS accreditation, and guarantees every installation for 20 to 30 years depending on the system and climate exposure.
Installation methods vary by system and site constraints: single-ply can be mechanically fixed (no adhesive, fastest installation), fully adhered (best for windy sites, uses cold or warm contact adhesive), or ballasted (weights hold the membrane down, reversible if needed later). Built-up felt is torch-applied layer by layer, building up to full thickness with overlaps sealed tight. Liquid systems are spray-applied or rolled, curing to form a seamless coat with no joints to fail. Mastic asphalt is laid hot and trowelled flat, creating a monolithic wearing surface. Each method has its place. The specification reflects your budget, schedule, and how the roof will be used once it's done.
View Some of Our Roofing Work
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Need Expert Advice?
Our specialists are ready to discuss your flat roofing requirements and provide a tailored solution for your building.
How It Works
Our straightforward process ensures you get the right solution with minimum hassle
Site Survey & Assessment
We arrange a convenient time and carry out a thorough roof inspection
Specification & Planning
Create detailed quote with clear breakdown of costs and timeline
Surface Preparation
Prepare roof structure and plan installation logistics
Installation & Completion
Expert installation with quality assurance, documentation and guarantee
For tendering enquiries, please email info@angliadecor.co.uk
Why Businesses Trust Anglia Decor for Industrial Flat Roofing
Trusted by businesses across the UK for expert, reliable service
Flat Roofing Experts
Over 15 years installing and repairing flat roofs on commercial and industrial buildings across the UK.
Specialist Flat Roof Knowledge
We understand the demands of flat roofing, from ponding water and membrane degradation to insulation upgrades and drainage design.
Large-Scale & Complex Projects
From single rooms to full facility refurbishments, we have the team and equipment to deliver on any scale.
Minimal Disruption
We work around your operational schedules, including nights and weekends, so your business stays on track.
Flat Roofing Safety & Compliance
Our flat roofing systems meet building regulation and CDM requirements, with full working-at-height safety documentation on every project.
Reliable & Straightforward
Honest pricing, clear timelines, and a dedicated project manager from survey through to handover.
Case Studies
Real projects delivered by Anglia Decor. See the work we've completed for businesses like yours.
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Frequently Asked Questions
What are the main types of flat roofing system?
Anglia Decor installs single-ply membranes (TPO, PVC, EPDM), built-up bituminous felt, liquid-applied waterproofing, mastic asphalt, and fibreglass (GRP) systems. The choice depends on your building's exposure, foot traffic, maintenance schedule, and budget. Your surveyor will recommend the right system after inspecting the substrate and assessing thermal and drainage requirements.
How long does a flat roof last?
A well-installed flat roofing system lasts 20 to 30 years. That depends on the membrane type, quality of substrate preparation, proper ventilation and vapour control, annual maintenance, and prompt repair of any damage. Anglia Decor guarantees every installation for the full lifespan and offers planned preventative maintenance contracts to extend service life.
Should we overlay the old roof or replace it completely?
An overlay is faster and less disruptive. The new membrane goes over the old system without stripping back. It works well if the substrate is sound and the existing membrane isn't moving or trapping moisture. A full replacement removes the old system, addresses substrate problems, installs fresh insulation and vapour control, and builds in tapered design for water drainage. Choose overlay for a quick, cost-effective solution. Choose replacement if the substrate is uncertain or you want the best long-term performance.
Can you install a new roof while our building is still occupied?
Yes. Anglia Decor plans phased refurbishment and overlay work in sections, keeping hoarding and demarcation in place to protect staff and customers from weather and falling debris. Site surveyor signs off tie-in detail between sections before the next phase starts. Out-of-hours work is also available for time-sensitive projects or buildings with high daytime occupancy.
What accreditations does Anglia Decor hold for flat roofing?
Anglia Decor is a CHAS-accredited contractor and a certified approved installer for Sika, Bauder, and IKO membrane systems. All installations are BBA certified and carry 20 to 30-year manufacturer guarantees. We operate under CDM compliance on all commercial projects and hold public liability insurance and professional indemnity where required.
Ready to Start Your Industrial Flat Roofing Project?
Our industrial flat roofing specialists will assess your facility and provide a tailored solution with minimal downtime.