Overview of the Truscon RD27 House

The Truscon RD27 house, a product of the late 1960s, represents a unique chapter in the history of British housing. Manufactured by Truscon Ltd and designed by R D Green in collaboration with Truscon Ltd, these properties were built between 1967 and 1968. With only 18 units constructed, the Truscon RD27 is a rare find in the UK property market. These two-storey terraced houses are characterized by their medium pitch gable roofs covered with concrete tiles, front and rear external walls of shiplap timber boarding, and gable walls of brick.

Historical Context and Manufacturing Details

Manufacturers and Designers

The Truscon RD27 houses were manufactured by Truscon Ltd, a company known for its innovative approach to construction during the mid-20th century. The design was a collaborative effort between R D Green and Truscon Ltd, aiming to provide affordable and efficient housing solutions during a period of significant housing demand in the UK.

Period Built and Typical Locations

These houses were constructed over a brief period from 1967 to 1968. Given the limited number of units built, they are not widespread but can be found in select locations across the UK. The specific areas where these houses were constructed are not well-documented, making them somewhat of a hidden gem for property enthusiasts and investors.

Characteristics and Construction Details

Identification Characteristics

The Truscon RD27 houses are easily identifiable by their distinct architectural features:
– Two-storey terraced houses: These properties are typically arranged in rows, sharing side walls with adjacent houses.
– Medium pitch gable roof: The roofs are covered with concrete tiles, providing durability and a traditional aesthetic.
– Front and rear external walls: These are clad with shiplap timber boarding, giving the houses a rustic appearance.
– Gable wall of brick: The brick gable walls add structural integrity and a contrasting texture to the timber-clad walls.

Construction Details

Substructure

• Concrete foundations: The houses are built on solid concrete foundations, ensuring stability and longevity.
• Concrete slab: The ground floor is constructed with a concrete slab, providing a robust base for the structure.

External Walls

• Front and rear walls: These are made of storey-height timber frame panels, sheathed externally with plywood and clad with shiplap timber boarding. The internal lining is plasterboard, with insulation placed between the frame studs.
• Gable wall: Constructed of brick, with a cavity and eaves height 4′ x 7″ PRC (Precast Reinforced Concrete) panels and PRC apex panels. Bolted MS (Mild Steel) connections are used for added strength.

Separating Wall

• Eaves height 7″ x 4′ PRC panels: These panels provide separation between the terraced houses, ensuring privacy and sound insulation.

Partitions

• Not known: The specific details of the internal partitions are not documented.

Ground Floor

• Concrete: The ground floor is a solid concrete slab, providing a durable and stable base.

First Floor

• Unknown on RSA brackets: The construction details of the first floor are not well-documented, but it is supported by RSA (Rolled Steel Angle) brackets.

Ceilings

• Not known: The specific details of the ceilings are not documented.

Roof

• Timber trusses and concrete tiles: The roof structure is made of timber trusses, covered with concrete tiles for durability and weather resistance.

Typical Hazards and Risks

Structural Concerns

The Truscon RD27 houses, like many system-built properties from the mid-20th century, may present certain structural concerns. The use of timber and PRC panels can lead to issues such as:

• Timber decay: The shiplap timber boarding and timber frame panels are susceptible to rot and decay, especially if not properly maintained.
• Concrete degradation: The PRC panels can suffer from carbonation and corrosion of the steel reinforcement, leading to structural weakening.

Insulation and Energy Efficiency

The insulation used in these houses, while adequate for the time, may not meet modern energy efficiency standards. Upgrading the insulation can improve energy efficiency and reduce heating costs.

Asbestos

Given the period of construction, there is a possibility that asbestos-containing materials were used in some components of the house. A thorough survey is essential to identify and safely manage any asbestos present.

Defective Premises Act Considerations

The Truscon RD27 houses are not specifically listed as defective under the Defective Premises Act. However, due to their age and construction methods, they may exhibit defects that require attention. It is crucial for potential buyers and investors to conduct a comprehensive survey to identify any issues and plan for necessary repairs or upgrades.

Inspection Guide for Surveyors

External Inspection

• Roof: Check the condition of the concrete tiles and timber trusses. Look for signs of wear, damage, or leaks.
• Walls: Inspect the shiplap timber boarding for signs of rot, decay, or damage. Examine the brick gable walls for cracks or structural issues.
• Foundations: Assess the concrete foundations for any signs of movement or cracking.

Internal Inspection

• Walls and Partitions: Check the condition of the plasterboard lining and any visible timber frame elements. Look for signs of dampness or decay.
• Floors: Inspect the concrete ground floor for cracks or unevenness. Assess the first floor for stability and any signs of structural issues.
• Ceilings: Examine the ceilings for any signs of sagging, cracks, or water damage.

Structural Elements

• PRC Panels: Assess the condition of the PRC panels, looking for signs of carbonation or corrosion of the steel reinforcement.
• Insulation: Check the insulation between the frame studs for adequacy and condition. Consider upgrading if necessary.

Safety and Compliance

• Asbestos: Conduct a thorough survey to identify any asbestos-containing materials and ensure they are managed safely.
• Energy Efficiency: Evaluate the energy efficiency of the property and consider improvements to insulation and heating systems.

Typical Defects and Maintenance Tips

Common Defects

• Timber Decay: Regularly inspect and maintain the shiplap timber boarding to prevent rot and decay. Treat the timber with appropriate preservatives and ensure proper ventilation.
• Concrete Degradation: Monitor the condition of the PRC panels and address any signs of carbonation or corrosion promptly. Consider professional assessment and repair if necessary.
• Insulation Issues: Upgrade the insulation to modern standards to improve energy efficiency and comfort.

Maintenance Tips

• Regular Inspections: Conduct regular inspections of the property to identify and address any issues early.
• Timber Treatment: Treat the timber elements with preservatives to protect against rot and decay.
• Concrete Repairs: Address any signs of concrete degradation promptly to prevent further damage.
• Energy Efficiency Upgrades: Consider upgrading the insulation and heating systems to improve energy efficiency and reduce costs.

Conclusion

The Truscon RD27 house is a unique and rare property type with distinct architectural features and construction methods. While these houses may present certain challenges due to their age and construction materials, they also offer opportunities for restoration and improvement. By conducting thorough inspections and addressing any issues promptly, buyers and investors can ensure the longevity and value of these properties.

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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