What is Over-Cladding?
Cost-Effective Roof Upgrades: Modernise Without Removing the Existing Structure
Our over-cladding system offers a practical, high-performance solution for industrial and commercial metal roof refurbishment. By installing a new roofing system directly over the existing one, we eliminate the need for expensive strip-outs and hazardous waste disposal, significantly reducing project costs and site downtime.
Designed for long-term durability, our steel over-cladding systems are the preferred choice for extending the life of warehouse, agricultural, and factory roofs across the UK.
What is Over-Cladding?
Over-cladding is a proven refurbishment method involving a "nested" or "spacer-bar" system. We fix new metal roofing sheets over your existing structure using a specially engineered support system. This creates a secondary weatherproof skin, often allowing for the addition of extra insulation between the old and new layers.
Key Benefits of a Metal Over-Cladding System
Choosing over-cladding instead of a full strip-and-replace offers significant logistical and financial advantages:
- Significant Cost Savings: Drastically reduces labour and eliminates costly landfill/disposal fees for old materials.
- Zero Disruption: Ideal for live environments; your operations can continue inside while we work on the outside.
- Enhanced Thermal Performance: Provides a perfect opportunity to upgrade U-values by adding new insulation between the skins.
- Structural Longevity: Protects the original building fabric from further weathering and corrosion.
- Speed of Installation: A much faster turnaround compared to traditional re-roofing.
Technical Specifications & Materials
We manufacture our systems to ensure structural integrity and ease of installation for contractors.
|
Feature |
Specification |
|
Application |
Commercial, Industrial, and Agricultural Refurbishment |
|
Installation |
Proprietary Spacer/Bar system fixed to existing purlins |
|
Compatibility |
Suitable for most Box Profile and Corrugated metal roofs |
|
Material |
High-tensile Galvanised Steel |
|
Finishes |
HPS200 Ultra, Plastisol, or Polyester coatings |
|
Integrity |
Engineered to manage additional dead loads safely |
Bespoke Refurbishment Solutions Since 1987
No two refurbishment projects are identical. At Tinman Steels, we leverage our extensive product knowledge to offer bespoke designs. We ensure the new profile matches your existing spans and structural capacity.
We work closely with contractors and architects to provide reliable, compliant solutions—including advice on whether your project requires PIR or Mineral Wool infill for fire and thermal compliance.
Get a Technical Quote for Your Over-Cladding Project
Speak to Our Refurbishment SpecialistsFrequently Asked Questions – Over-Cladding System
Over-cladding systems are specially designed metal sections used to install new roofing over an existing roof. They create a secure fixing point for new metal sheets, allowing the original roof to remain in place while improving weather protection and performance.
Yes. Over-cladding systems are specifically designed to cover existing roofs without removal, provided the existing structure is in suitable condition. This reduces disruption, waste, and overall project costs.
Over-cladding is commonly used on industrial, commercial, and agricultural buildings, including warehouses, factories, storage units, and farm buildings. It is ideal where large roof areas need refurbishment with minimal downtime.
Yes. Over-cladding profiles are widely used for metal roof refurbishment projects and are compatible with many existing metal roof profiles. Each project should be assessed to ensure suitability and compliance with structural requirements.
Over-cladding significantly improves weather resistance and can enhance thermal performance when combined with insulation upgrades. It also extends the lifespan of the roof by adding a new protective outer layer.
Yes. Bespoke over-cladding systems can be designed and manufactured to suit specific roof layouts, spans, load requirements, or existing roof conditions. This ensures a precise fit and optimal performance.
In many cases, yes. By avoiding roof strip-out, waste disposal, and extended labour time, over-cladding is often a more cost-effective alternative to full roof replacement, particularly on large-scale buildings.
When correctly specified and installed, over-cladding systems can comply with relevant building regulations. Structural assessments and load calculations should always be carried out as part of the design process by an engineer.