Understanding the Paragon House

The Paragon House, also known as the Weir or Weir Paragon, is a distinctive type of system-built property that emerged in the UK during the post-war era. Manufactured by J & J Weir Ltd, these homes were constructed around 1945, with approximately 100 units built. These properties are primarily found as detached bungalows, characterized by their unique U-shaped design and flat roofs covered with painted steel sheets. The external walls are typically harled or painted flat steel sheets, and a flat canopy over the front door is situated in a recess, adding to their distinctive appearance.

Historical Context and Design

The Paragon House was designed to address the urgent housing needs following World War II. The rapid construction methods and use of prefabricated materials allowed for quick assembly, making them an ideal solution for the housing shortage of the time. The design of these homes reflects the architectural trends of the mid-20th century, focusing on functionality and efficiency.

Construction Details

The construction of Paragon Houses involves several key components:

• Substructure: These homes are built on concrete strip footings with reinforced concrete (RC) under-building. The oversite concrete and pitchmastic damp-proof membrane (DPM) provide a solid foundation.

• Frame: While the frame is not applicable in the traditional sense, the protective coating includes paint harling externally and red lead paint internally.

• External Walls: The walls are constructed using storey-height tray section PS panels, joggled along one edge with welded PSC and PSA stiffeners. The PSC frame is lined with rexine-faced plasterboard, and glass fibre insulation quilt is placed between frames.

• Partitions: The partitions consist of a PS frame lined with rexine-faced plasterboard.

• Ground Floor: The ground floor features tongue and groove (T&G) boarding on timber battens, supported by composite joists of timber and PS channels.

• Ceilings: Plasterboard is used for the ceilings.

• Roof: The roof is supported by PSC roof supports and tray section PS sheets, with glass fibre insulation at ceiling level.

Typical Characteristics and Hazards

Paragon Houses are known for their distinctive characteristics, which include:

• Flat Roofs: The flat roofs, covered with painted steel sheets, are a notable feature. However, they can pose a risk of water pooling and potential leaks if not properly maintained.

• Steel Cladding: The external walls are clad in steel, which can be prone to corrosion over time, especially if the protective paint layer is compromised.

• Insulation: The use of glass fibre insulation provides thermal efficiency, but it may require updating to meet modern standards.

• Structural Integrity: The steel frame and cladding can be susceptible to rust and deterioration, impacting the overall structural integrity of the property.

Defective Premises Act Considerations

Under the Defective Premises Act, properties must be fit for habitation and free from significant defects. While Paragon Houses are not explicitly classified as defective under this act, potential buyers should be aware of the typical issues associated with steel-framed and steel-clad homes. Regular inspections and maintenance are crucial to ensure these properties remain safe and habitable.

Inspection Tips for Surveyors

When inspecting a Paragon House, surveyors should pay close attention to the following areas:

• Roof Condition: Check for signs of water damage, rust, or corrosion on the flat roof. Ensure that the drainage system is functioning properly to prevent water pooling.

• External Cladding: Inspect the steel cladding for any signs of rust or damage. Look for areas where the protective paint may have worn away, exposing the steel to the elements.

• Structural Frame: Examine the steel frame for any signs of deterioration or rust. Pay particular attention to joints and connections, as these are common areas for structural issues.

• Insulation and Energy Efficiency: Assess the condition of the glass fibre insulation and consider recommending upgrades to improve energy efficiency and meet current standards.

• Damp and Moisture: Check for any signs of damp or moisture ingress, particularly around windows, doors, and the base of the walls.

Variants and Modifications

Over the years, some Paragon Houses may have undergone modifications or upgrades. Common variants include:

• Fibreboard Linings and Ceilings: Some properties may feature fibreboard linings and ceilings instead of plasterboard.

• Steel Cover Strips: Steel cover strips may be used over butt-jointed steel panels for added protection.

• Concrete Foundation Walls: In some cases, concrete foundation walls may be present, providing additional stability.

Maintaining and Improving Paragon Houses

Maintaining a Paragon House requires regular inspections and proactive measures to address potential issues. Here are some tips for homeowners and investors:

• Regular Inspections: Schedule regular inspections by a qualified surveyor to identify and address any emerging issues before they become significant problems.

• Protective Coatings: Ensure that the protective paint coatings on the steel cladding and roof are maintained and reapplied as needed to prevent rust and corrosion.

• Energy Efficiency Upgrades: Consider upgrading the insulation and windows to improve energy efficiency and reduce heating costs.

• Roof Maintenance: Keep the roof clear of debris and ensure that the drainage system is functioning properly to prevent water pooling and leaks.

• Structural Repairs: Address any signs of structural deterioration promptly to maintain the integrity and safety of the property.

Conclusion

The Paragon House represents a unique chapter in the history of UK housing, offering a glimpse into the innovative construction methods of the post-war era. While these homes come with their own set of challenges, they also offer potential for those willing to invest in their maintenance and improvement. By understanding the typical characteristics, hazards, and maintenance requirements of Paragon Houses, home buyers and investors can make informed decisions and ensure the longevity and safety 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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