The Hammonds

This case study details the design and construction of a home extension using Structural Insulated Panels (SIP) for the walls and ICORoof for the roof. The project features Hardieplank cement board cladding, 2.5m aluminium bifold doors finished in white, and an electric Velux window for ventilation and added natural daylight. The clients, Mr & Mrs Hammond, transitioned from an unusable conservatory to a comfortable, functional extension which has been opened up to create an open-plan kitchen & dining room.

Width

5m

Depth

3m

Price

£20k

Location

Bracknell

Project Overview

Mr & Mrs Hammond had an old conservatory that had become impractical due to extreme temperatures, being too hot in the summer and too cold in the winter. The space was relegated to storage rather than living space. After receiving quotes for traditional brick-built extensions that were well beyond budget, they sought a more cost-effective yet efficient solution.

The Brief

Temperature Regulation
The existing conservatory’s poor insulation made it uncomfortable year-round.

Budget Constraints
Traditional brick-built extension quotes were prohibitively expensive.

Usable Space
The goal was to transform an underutilised area into a functional living space.

Regulatory Approvals
Ensuring all planning permissions and building regulations were met without adding hassle for the client. For this build, no planning permission was required due to using the existing base from their old conservatory, however, we still ensured the project undertook full building regulations approval.

Installation

Our team proposed using SIP panels for the walls and ICORoof for the roof to address these challenges.

The following steps were undertaken:

1. Design and Planning:
We designed the extension to blend seamlessly with the existing property, featuring Hardieplank cladding with white windows, bifold doors, fascias, soffits & gutters. Building regulations approval were obtained by our team, saving the customer the hassle. We also obtained SAP calculations allowing the internal doors to be taken out and opened up.

2. SIP Panels for Walls:
SIP panels were selected for their excellent insulation properties, maintaining a U-value of less than 0.18. This choice not only ensured energy efficiency but also significantly reduced construction costs.

3. ICORoof Installation:
The ICORoof provided robust protection and additional insulation, complementing the SIP panels.

4. Cladding and Doors:
Hardieplank cement board cladding complimented the existing brickwork and the 2.5m bifold doors in white created a seamless connection between the indoor and outdoor spaces.

5. Velux Windows:
An electric Velux window was added to enhance natural light and provide effective ventilation, improving the overall comfort and usability of the extension. Weather sensors will automatically close the window in the case of any rain.

The Result

The transformation of the old conservatory into a modern extension provided our customers with several benefits:

Comfortable Living Space
The new extension maintains a consistent, comfortable temperature year-round, making it a usable living space.

Cost Savings
By opting for SIP panels, we were able to complete the project within the customers budget while still achieving excellent insulation values.

Aesthetic Appeal
The contemporary design enhanced the overall look of the property.

Hassle-Free Process
SAP calculations & building regulations approvals on behalf of the customer streamlined the process, providing peace of mind.

Conclusion

This case study illustrates the successful conversion of an unusable conservatory into a stylish and functional home extension using SIP panels and ICORoof. By focusing on cost-effective, energy-efficient solutions, we provided The Hammonds with a comfortable, modern space that adds significant value to her home. The project demonstrates the advantages of using advanced building materials to achieve high performance and aesthetic standards within a budget, without compromising on longevity or quality.

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