When considering a property purchase in the UK, understanding the nuances of different property types is crucial. One such property type that has piqued the interest of many home buyers and investors is the Arrowtrim house. Known for its unique construction and historical significance, the Arrowtrim house offers a fascinating glimpse into the architectural trends of the late 1960s and early 1970s. This article delves into the essential aspects of Arrowtrim houses, providing a detailed overview of their construction, typical characteristics, potential hazards, and inspection tips.

Historical Context and Manufacturing Background

The Arrowtrim house, also known as the Prowting house, was manufactured by A E A Prowting Ltd, with designs by P Sensky. These properties were constructed between 1966 and 1970, a period marked by a surge in system-built housing in the UK. This era saw a shift towards innovative construction methods aimed at addressing the post-war housing shortage. The Arrowtrim house is a testament to this architectural evolution, offering a blend of traditional and modern building techniques.

Typical Locations and Variants

Arrowtrim houses are predominantly found in suburban areas across the UK, often in the form of bungalows and two-storey semi-detached or terraced houses. These properties are characterized by their medium pitch gable roofs covered with tiles, and external walls that are either entirely brick or brick to the first floor level with tile hanging above. The system was also adapted for flats, showcasing its versatility in different residential settings.

Construction Details

Understanding the construction details of Arrowtrim houses is vital for potential buyers and investors. These properties are built on concrete strip footings with a concrete slab substructure. The external walls feature a platform frame construction, comprising storey-height timber frame panels sheathed externally with plywood. This is overlaid with a breather membrane and separately clad with brick, providing a robust and weather-resistant exterior. Internally, the walls are lined with plasterboard, and mineral fibre insulation is placed between the frame studs to enhance thermal efficiency.

The ground floor is typically concrete, while the first floor consists of timber boarding on timber joists. Ceilings are plasterboard, and the roof is constructed with timber trusses, bituminous felt, and tiles. Mineral fibre insulation is installed at ceiling level to improve energy efficiency. Variants of the Arrowtrim house may feature front and rear external walls separately clad at the first floor level with tile hanging on timber battens, adding a distinctive aesthetic touch.

Typical Characteristics and Identification

Arrowtrim houses are easily identifiable by their architectural features. The medium pitch gable roof and the combination of brick and tile hanging on the external walls are key characteristics. These properties often exhibit a practical and straightforward design, reflecting the functional approach of the era in which they were built. The use of timber frame construction is another hallmark, providing a lightweight yet sturdy framework for the building.

Potential Hazards and Risks

While Arrowtrim houses offer numerous benefits, they also come with potential hazards and risks that buyers should be aware of. One of the primary concerns is the condition of the timber frame, which can be susceptible to rot and decay if not properly maintained. Moisture ingress is a common issue, particularly in areas where the breather membrane has deteriorated or been compromised. This can lead to structural damage and affect the overall integrity of the property.

Another risk associated with Arrowtrim houses is the potential for thermal bridging, which can result in heat loss and increased energy bills. Ensuring that the insulation is intact and effective is crucial for maintaining a comfortable and energy-efficient home. Additionally, the presence of asbestos in some older properties is a concern, necessitating thorough inspections and, if necessary, professional removal.

Defective Premises Act Considerations

When evaluating an Arrowtrim house, it is important to consider whether the property is classed as defective under the Defective Premises Act. This legislation aims to protect homeowners from substandard construction practices that could pose a risk to health and safety. While Arrowtrim houses are not inherently classified as defective, issues such as structural weaknesses, inadequate insulation, or poor maintenance can lead to potential liabilities under the Act. Engaging a qualified surveyor to assess the property is essential to identify any defects and ensure compliance with legal standards.

Inspection Tips for Arrowtrim Houses

Conducting a thorough inspection is a critical step in the property buying process. For Arrowtrim houses, specific areas require careful attention to ensure the property is in good condition and free from major defects.

1. Timber Frame Assessment: Inspect the timber frame for signs of rot, decay, or insect infestation. Pay particular attention to areas where moisture ingress is likely, such as around windows, doors, and roof junctions.

2. Roof and Insulation Check: Examine the roof for missing or damaged tiles, and ensure the bituminous felt is intact. Check the mineral fibre insulation at ceiling level to confirm it is effective and free from dampness.

3. External Wall Inspection: Look for cracks or gaps in the brickwork and tile hanging, which could indicate structural movement or water penetration. Ensure the breather membrane is functioning correctly to prevent moisture ingress.

4. Internal Wall and Ceiling Examination: Inspect the plasterboard for signs of dampness, mould, or cracking. These issues could indicate underlying problems with the timber frame or insulation.

5. Asbestos Survey: If the property was built during a time when asbestos was commonly used, consider having an asbestos survey conducted to identify any hazardous materials that may need removal.

6. Energy Efficiency Evaluation: Assess the property’s energy efficiency by checking the condition of the insulation and the effectiveness of the heating system. Consider upgrading to modern, energy-efficient systems if necessary.

Typical Defects in Arrowtrim Houses

Arrowtrim houses, like any property type, are prone to certain defects that buyers should be aware of. Common issues include:

• Timber Frame Deterioration: Over time, the timber frame can suffer from rot and decay, particularly if exposed to moisture. Regular maintenance and timely repairs are essential to prevent significant structural damage.

• Moisture Ingress: The breather membrane and external cladding play a crucial role in preventing moisture ingress. Any damage or deterioration in these components can lead to water penetration and subsequent issues such as mould growth and structural weakening.

• Thermal Bridging: Inadequate insulation or gaps in the building envelope can result in thermal bridging, leading to heat loss and increased energy consumption. Ensuring proper insulation and sealing is vital for maintaining energy efficiency.

• Asbestos Presence: Asbestos was commonly used in construction during the period when Arrowtrim houses were built. Identifying and safely removing any asbestos-containing materials is crucial for ensuring a safe living environment.

• Structural Movement: Cracks in the brickwork or internal walls may indicate structural movement, which can compromise the stability of the property. A professional surveyor can assess the extent of the movement and recommend appropriate remedial measures.

Conclusion

Arrowtrim houses offer a unique blend of historical charm and modern functionality, making them an attractive option for home buyers and investors. Understanding the construction details, typical characteristics, and potential hazards associated with these properties is essential for making an informed purchase decision. By conducting a thorough inspection and addressing any identified defects, buyers can ensure their Arrowtrim house remains a safe and comfortable home for years to come.

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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