Ringmer Passivhaus in East Sussex, Modern English Home, Green Building Images, UK Architecture

Ringmer Passivhaus in East Sussex

20 May 2020

Ringmer Passivhaus

Architects: Hazle McCormack Young LLP

Location: East Sussex, Southern England, UK

The Ringmer Passivhaus is a new build dwelling, replacing a redundant asbestos dairy barn.

Ringmer Passivhaus East Sussex Southern England

Planning approval for the certified Passivhaus scheme was achieved at Planning Committee following an unprecedented Class Q Permitted Development conversion to a larger new build dwelling design.

Ringmer Passivhaus East Sussex Southern England Ringmer Passivhaus East Sussex Southern England

The three bedroom house is formed from a structurally insulated panel system (SIPS) frame which stands on an insulated raft, ensuring a thermal bridge-free construction. The walls and roof are clad in Siberian Larch, with feature galvanised steel verges and rainwater downpipes completing the detailing.

Ringmer Passivhaus East Sussex Southern England

A mechanical ventilation heat recovery (MVHR) system ensures a continuous delivery of room temperature fresh air and the thermal performance is so efficient that the bodies of the occupants deliver 35% of the heating load for the building in the coldest winter months.

Ringmer Passivhaus East Sussex Southern England

This project started out as a Class Q permitted development to convert an existing asbestos clad equestrian barn into a three bedroom dwelling. The restrictions of the Class Q clause meant that the concrete structure needed to be reclad, but not replaced, which did not meet the client’s high energy efficiency aspirations.

Ringmer Passivhaus East Sussex Southern England Ringmer Passivhaus East Sussex Southern England

After much research the client decided PassivHaus was the right solution for their lifestyle, both in terms of the energy saving benefits and the client’s comfort as a sufferer of Raynaud’s Phenomenon.

Ringmer Passivhaus East Sussex Southern England

The client therefore searched for a designer and found HMY on the PassivHaus Trust website.

Ringmer Passivhaus East Sussex Southern England

The single biggest challenge presented by the project was the combination of highly shrinkable clay and the wish to incorporate an ISoQuick style raft insulation. Many design solutions were reviewed, with the adopted option being a sacrificial bed of concrete to act as ground improvement on which the IsoQuick was laid. Whilst not the cheapest solution, it proved to be the least risk and least impactful on delivery programme.

Ringmer Passivhaus East Sussex Southern England Ringmer Passivhaus East Sussex Southern England

The project was built using a Structurally Insulated Panel System (SIPS). The coordination of the SIPCO SIP system went well and the structural engineering was carried out with a high level of precision. A high degree of commitment from all team members resulted in a well-coordinated structure and an accurately delivered fabric.

This was the first new dwelling to be built based upon a new build permission following a Class Q Permitted Development conversion approval. It was also, to our knowledge, the first planning approval given with a condition for Passivhaus certification, which was agreed at Planning Committee with the client.

Sustainability Features
Air tightness was delivered at 0.6 ach @ 50 pascals, primary energy demand is less than 120kWh/m²/year with primary space heating demand below 15 kWh/m²/year, which equates to an energy use less than 10W/m² in peak demand.

Ringmer Passivhaus East Sussex Southern England Ringmer Passivhaus East Sussex Southern England

Ringmer Passivhaus, East Sussex – Building Information

Design: Hazle McCormack Young LLP

Project size: 150 sqm
Site size: 2000 sqm
Project Budget: $450000
Completion date: 2018
Building levels: 2

Ringmer Passivhaus East Sussex Southern England

Photography: Andy Stagg

Ringmer Passivhaus in East Sussex, Southern England images / information received 200520

Location: East Sussex, southern England, UK

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