Commercial Flat Roof Refurbishment for Gentoo
Flat Roof Refurbishment Sunderland
Project Overview
DVC Commercial Roofing Contractors completed a commercial flat roof repair in Sunderland for Gentoo Stores.
The work was part of a planned commercial roof maintenance programme. The goal was to prevent water leaks and extend the life of the building’s roof.
The original flat roof system was built using:
- A structural metal deck
- Half-inch fibreboard
- Two layers of roofing felt
Although this type of roof can last many years, the system had reached the end of its service life. Signs of wear and deterioration were starting to appear.
If left untreated, this could have caused:
- Water leaks
- Structural damage
- Disruption to business operations
- Damage to stock inside the building
To prevent these issues, a commercial flat roof refurbishment was required.

Project Requirements
The client needed the roof repair to be completed without disrupting daily operations.
Because the building was still in use, careful planning was required to ensure:
- Safe working conditions
- Minimal noise and disruption
- Continued access for staff and customers
After carrying out a roof survey and inspection, Moy Materials recommended installing a Protan single-ply roofing system.
This system was selected because it offers:
- Fast installation
- Strong weather resistance
- Long-term waterproof protection
The client also required a 20-year roofing guarantee.
Flat Roofing System Benefits
Single-ply membranes are widely used in commercial roofing projects because they are durable and quick to install.
For this project, the system provided several advantages:
- Fast installation across large roof areas
- Strong resistance to rain, wind, and weather
- Reliable waterproofing performance
- Long service life
These benefits made the system ideal for a commercial flat roof repair in Sunderland.
Installation Process
The roofing team began by removing the existing roof materials. This exposed the structural metal deck beneath.
The new roofing system was installed in several stages:
- Removal of the old roofing layers
- Installation of a vapour control layer (VCL)
- Installation of high-performance insulation
- Installation of the Protan single-ply membrane
- Heat-welding of the membrane joints
The welded joints created a fully waterproof roof system.
Work was completed in sections to limit the amount of roof exposed to the weather.
Despite challenging conditions, including heavy rain and strong winds, the project was completed successfully.
FAQ About Flat Roof Refurbishments
What is involved in a commercial flat roof repair?
A commercial flat roof repair usually involves identifying damaged areas, replacing worn roofing materials, and restoring the waterproof membrane. Professional commercial roofing contractors will also inspect insulation, drainage, and flashing to prevent future leaks.
At DVC Roofing, our team carries out full commercial roof inspections to ensure the best repair solution is used for each building.
How often should a commercial flat roof be inspected?
Most experts recommend a commercial roof inspection at least once per year. Regular commercial roof surveys help identify early signs of damage such as cracks, pooling water, or membrane deterioration. Routine commercial roof maintenance can significantly extend the life of a flat roof system.
What are the benefits of single-ply commercial roofing systems?
Single-ply systems are widely used for commercial flat roof installation because they provide:
- Excellent waterproof protection
- Fast installation on large buildings
- Long service life
- Strong resistance to weather
These systems are commonly used by commercial roofing companies across the UK for refurbishment and replacement projects.
Do you provide commercial roofing services in Newcastle?
Yes. DVC Roofing provides commercial roofing services in Newcastle upon Tyne and across the UK.
Our services include:
- Commercial flat roof repair
- Commercial flat roof replacement
- Roof cladding services in Newcastle
- Commercial roof inspection services
- Industrial roofing in Newcastle
We are trusted roofing contractors in Newcastle for businesses, warehouses, and commercial buildings.
Do you provide commercial roofing services in Manchester?
Yes. Our team also works throughout the North West and offers commercial roofing contractors in Manchester for a range of projects.
This includes:
- Flat roofing contractors in Manchester
- Commercial roof replacement services
- Industrial roofing and cladding in Manchester
- Commercial flat roof installation contractors
When should a commercial roof be replaced instead of repaired?
A commercial flat roof replacement may be required when:
- The roofing system has reached the end of its lifespan
- Multiple leaks are present
- Insulation has become water damaged
- Repairs are no longer cost-effective
A professional commercial roof survey can determine whether repair or replacement is the best option.
How do I find reliable commercial roofers near me?
When searching for commercial roofers near me, it is important to choose experienced contractors with a proven track record in large-scale roofing projects.
Look for companies that offer:
- Commercial roof inspection services
- Long-term roofing guarantees
- Experience with commercial flat roofs
- Accredited roofing systems and materials
DVC Roofing has delivered commercial roofing services across Newcastle, Manchester, and the UK since 1995.
