Case Studies
5 min read

Enhanced Insulation and Roofing Upgrade in Sunbury-on-Thames

Exploring a roofing project undertaken in Sunbury-on-Thames, where a client sought to improve the insulation of the room below their flat roof.
An enhanced Insulation and Roofing Upgrade on a home in Sunbury-on-Thames
Published on
December 12, 2024

Location: Sunbury-on-Thames, Surrey, UK

Type of Work: Flat Roof Insulation Upgrade

Materials Used: Classic Bond Pro System, 18mm OSB Deck, Warm Deck Insulation

Project Overview

The project involved a flat roof area covering a specific room in the client's home. The existing roof was a three-layer felt system, which had become less effective over time, contributing to poor insulation in the room below. The client’s primary goal was to achieve better thermal performance and reduce energy costs while ensuring the new roofing system was robust and aesthetically pleasing.


Problem Identification


The key issues with the existing three-layer felt roofing system included:

  1. Insufficient Insulation: The old felt system failed to provide adequate insulation, leading to heat loss and higher energy bills for the homeowner.
  2. Aging Material: Over time, the felt system had deteriorated, which reduced its effectiveness in protecting against weather elements.
  3. Thermal Comfort: The lack of proper insulation made the room uncomfortable, particularly during colder months, which prompted the client to seek a more efficient solution.


Solution Implementation


The solution was to install a warm deck system, a modern roofing method that places insulation above the roof deck. This system is complemented by the Classic Bond Pro flat roofing system, known for its durability and resistance to weathering.

  1. Removal of Old Felt System: The initial step involved stripping the old three-layer felt system. This process required careful handling to avoid damage to the underlying structure and prepare it for the new installation.
  2. Installation of Warm Deck System: The warm deck system was chosen for its superior insulation properties. By placing insulation above the structural deck, this system improves thermal performance and prevents condensation, offering enhanced energy efficiency.
  3. Application of Classic Bond Pro Roofing: The Classic Bond Pro flat roofing system was applied over the warm deck, providing a seamless and weather-resistant finish. This EPDM (ethylene propylene diene terpolymer) membrane is renowned for its long lifespan and low maintenance requirements, making it an ideal choice for the client's needs.


Detailed Implementation


Removal of Old Felt System


The project began with the removal of the existing three-layer felt roofing. The team took care to strip away all layers systematically, ensuring that the surface was clean and prepared for the new installation. This step was crucial in eliminating any remnants that could compromise the integrity of the new roof.


Installation of Warm Deck System


Next, the warm deck system was installed. This involved placing rigid insulation boards directly over the roof deck, providing a continuous layer of thermal protection. The warm deck system is particularly effective in maintaining a consistent internal temperature, thereby enhancing the comfort of the room below.


Application of Classic Bond Pro Roofing


The final phase of the project was the application of the Classic Bond Pro flat roofing system. This EPDM membrane was chosen for its durability and ability to withstand extreme weather conditions. The membrane was carefully laid over the insulation, creating a waterproof seal that protects the underlying structure while offering an attractive finish.


Results and Evaluation


The completion of this project resulted in significant improvements in both thermal efficiency and the overall performance of the roof. The warm deck system provided superior insulation, reducing heat loss and contributing to lower energy bills for the homeowner. The Classic Bond Pro roofing ensured long-term protection against the elements, with its robust and weather-resistant properties.

The client's primary goal of enhancing the room's insulation was successfully achieved, with the added benefits of improved comfort and reduced heating costs. The new roofing system not only met but exceeded expectations, demonstrating the effectiveness of modern roofing solutions in residential settings.

The roof of a house with a sky background in  Sunbury-on-Thames
A view of a flat roof upgrade from the top of a house in  Sunbury-on-Thames
The Roof of a house that has been insulated in  Sunbury-on-Thames
The Roof of a house that has been insulated in  Sunbury-on-Thames
An enhanced insulation and roofing upgrade in Sunbury on Thames
The roof of a house that has been gutted in Sunbury on Thames
A man is stripping a roof in Sunbury on Thames
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