Case Study: Complete Roof Replacement and Insulation Upgrade
Our team was contracted to undertake a comprehensive roof replacement and insulation upgrade for a residential property. The project involved removing existing closed-cell ridged spray foam insulation and installing new roofing materials. It encompassed approximately 110m² of roof space and required careful handling of materials, adherence to building regulations, and coordination with local authorities.
Scope of Work
The project involved the following key tasks:
- Scaffolding and Site Preparation:
- Erected a two-lift scaffold to gutter height with debris netting and tile bumpers to ensure safety and efficiency.
- Supplied and positioned waste chutes and skips for efficient disposal of removed materials.
- Removal of Existing Roof and Insulation:
- Carefully removed the existing roof tiles with the attached spray foam, ensuring minimal disturbance to the underlying structure.
- Scraped, sanded, and cleaned all rafters, hips, and ridge boards to prepare for new materials.
- All waste, including foam and battens, was disposed of responsibly using our licensed waste carriers.
- Installation of New Roofing System:
- Installed over fascia vent strips and felt support trays at eaves level for enhanced ventilation.
- Laid Marley breathable felt membrane and 25mm x 50mm treated battens to provide a solid base for the new tiles.
- Supplied and fitted Marley double roman tiles matching the existing profile, following the manufacturer's recommendations and code of practice for tiling and slating.
- Installed a vented ridge system to further improve roof ventilation.
- Insulation Upgrade:
- Topped up the loft insulation with Knauf mineral wool to a minimum depth of 270mm, ensuring compliance with building regulations and improving the property's energy efficiency.
- Scaffold boards were strategically placed in loft areas to create safe working zones.
- Final Preparations and Clean-up:
- A universal 5-star roof treatment was applied after thoroughly preparing the roof structure.
- Conducted a complete gutter clean and site tidy to leave the property in pristine condition.
- Engaged with the local authority to secure all necessary building control approvals, including obtaining an LABC completion certificate.
Challenges Encountered and Solutions
- Careful Removal of Spray Foam: The closed-cell ridged spray foam adhered to the tiles posed a challenge due to its rigidity and adherence. Our team utilized specialized scraping and sanding techniques to carefully remove the foam without damaging the rafters, hips, and ridge boards.
- Coordination with Building Control: Coordination with the building control officer was essential to ensure that all works met regulatory standards. A building control officer was present on-site to inspect the progress and provided the necessary completion certificate promptly.
Conclusion
The project was completed on schedule and to a high standard of workmanship, with all waste disposed of in compliance with environmental regulations. The new roof system, enhanced with modern insulation, provides improved energy efficiency, ventilation, and aesthetic appeal.
Key Benefits to the Client:
Client Testimonial:
The client expressed satisfaction with the quality of the work and the professionalism of our team, highlighting the seamless coordination and thorough clean-up process.
Spray Foam Removal
Before
During
After
Roof Replacement
Before
During
After
Conclusion
This project exemplifies our commitment to providing high-quality, reliable roofing solutions that comply with all relevant standards and regulations. We take pride in leaving every site clean, safe, and equipped with durable roofing systems that stand the test of time.
Areas We Cover
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