The Legacy of Turner & Newall Ltd

Turner & Newall Ltd, a name synonymous with industrial innovation, played a pivotal role in the construction industry during the mid-20th century. Known for their expertise in asbestos products, they ventured into the housing sector with the introduction of the Turner & Newall house in 1966. These properties, often referred to as T & N houses, were part of a broader movement towards system-built homes, which aimed to address the post-war housing shortage in the UK.

Characteristics of Turner & Newall Houses

Turner & Newall houses are typically two-storey structures, available in detached, semi-detached, and terraced forms. They are easily identifiable by their shallow pitch gable roofs, which are covered with profiled asbestos cement sheets. The front and rear external walls are constructed with glazed timber frame infill panels, clad with flat asbestos cement sheets. The gable walls feature narrow eaves height asbestos cement panels, complemented by moulded asbestos cement corner panels. Additionally, these houses often include a flat roof single-storey porch and storage extension.

Construction Details

The construction of Turner & Newall houses is a testament to the industrial approach of the era. The substructure consists of a concrete raft foundation, thickened around the perimeter, with aluminium flashings. The main frame is composed of 2 PSA setting out jigs, 9 PS hollow box stanchions, 6 PSC perimeter beams, 4 PSC floor support beams, 3 PS hollow box roof trusses, and 4 Z-shaped steel purlins. This robust framework is protected by galvanisation, ensuring durability.

The external walls are a combination of timber frame panels, complete with door and window frames, clad and lined with asbestos cement sheets. Mineral wool insulation is used between the frame studs for thermal efficiency. The gable wall and sections between timber frame panels are constructed with asbestos cement sheets, featuring a cavity and fibre-cored panels faced on both sides with asbestos cement sheets. Moulded asbestos cement sheet corner panels add to the structural integrity.

Typical Hazards and Risks

While Turner & Newall houses were innovative for their time, they come with inherent risks, primarily due to the extensive use of asbestos. Asbestos, once hailed for its fire-resistant properties, is now known to pose significant health risks when disturbed. The presence of asbestos in roofing, walls, ceilings, and partitions necessitates careful handling and professional assessment.

Defective Premises Act Considerations

Under the Defective Premises Act, properties must be fit for habitation. Turner & Newall houses, due to their asbestos content, may be classified as defective if the asbestos is in poor condition or poses a health risk. It is crucial for potential buyers and investors to conduct thorough inspections and assessments to ensure compliance with safety standards.

Inspection Guide for Surveyors

Surveyors inspecting Turner & Newall houses should follow specific guidelines to ensure a comprehensive evaluation. The following resources provide valuable insights:

• “Steel Framed and Steel Clad Houses: Inspection and Assessment” (BR 113)
• “Inspecting Steel Houses” (IP 14/87)
• “Maintaining and Improving Steel Houses” (IP 15/87)

These documents offer detailed guidance on assessing the structural integrity and safety of steel-framed houses, including those built by Turner & Newall.

Roof Construction

The roof of a Turner & Newall house is constructed with profiled asbestos cement sheets, supported by PS hollow box roof trusses and Z-shaped steel purlins. This design provides a lightweight yet sturdy roofing solution, although the presence of asbestos requires careful maintenance and potential replacement with safer materials.

Wall Construction

The front and rear walls are composed of timber frame panels, clad with asbestos cement sheets. The gable walls and sections between timber frame panels feature asbestos cement sheets with a cavity and fibre-cored panels. This construction method offers good insulation but necessitates regular inspections to ensure the asbestos remains undisturbed.

Floor Construction

The ground floor is typically concrete, providing a solid foundation. The first floor consists of plywood on timber joists, offering a lightweight yet durable solution. Regular checks for moisture ingress and structural integrity are essential to maintain the longevity of the flooring.

Main Frame Construction

The main frame of a Turner & Newall house is a combination of PSA setting out jigs, PS hollow box stanchions, PSC perimeter beams, and PSC floor support beams. This steel framework is galvanised for protection against corrosion, ensuring the structural stability of the property.

Common Defects in Turner & Newall Houses

Despite their robust construction, Turner & Newall houses are susceptible to certain defects. The most significant concern is the presence of asbestos, which can deteriorate over time and pose health risks. Additionally, the steel framework, while galvanised, may suffer from corrosion if not properly maintained. Moisture ingress can also lead to timber decay and compromise the structural integrity of the property.

Maintaining Turner & Newall Houses

Proper maintenance is crucial to preserving the safety and value of Turner & Newall houses. Regular inspections by qualified surveyors can identify potential issues before they escalate. It is essential to address any signs of asbestos deterioration promptly and consider professional removal or encapsulation if necessary. Ensuring adequate ventilation and moisture control can prevent timber decay and prolong the lifespan of the property.

Investing in Turner & Newall Houses

For investors, Turner & Newall houses present both opportunities and challenges. Their unique construction and historical significance can make them attractive additions to a property portfolio. However, the potential risks associated with asbestos and structural defects require careful consideration. Conducting thorough due diligence, including professional surveys and assessments, is essential to making informed investment decisions.

Conclusion

Turner & Newall houses are a fascinating chapter in the history of British housing. Their innovative construction methods and distinctive features make them a unique choice for home buyers and investors. However, the presence of asbestos and potential structural issues necessitate careful evaluation and maintenance. By understanding the characteristics and risks associated with these properties, buyers and investors can make informed decisions and ensure the safety and longevity of their investment.

At Flettons, we’re committed to safeguarding your investment. When considering a property purchase, trust our seasoned expertise to reveal any hidden threats. For a thorough building survey, get your instant quote through our quote calculator or reach out directly at 0203 691 0451. Your home’s safety is our top priority.

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