AECB Member Services : Mike Whitfield Construction Ltd

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Contact

Trading Name Mike Whitfield Construction Ltd
Principal Contact Mike Whitfield
Address Mount Pleasant Garway Hill Herefordshire HR2 8RU England
Phone 01981580362

Legal Details

Date established 1994
Legal status Ltd Co since 2006
Membership of Professional Bodies B.Sc(hons).Builder registration qualification, Victoria, Australia. Federation of Master Builders, Member of Masterbond scheme, Passive House Planning Package (PHPP) 2 day course.
Number of People in the business 6-10

Profile : Mike Whitfield Construction Ltd

Business Sector

Specialist contracting

Business description

Energy efficient and Passive House construction, traditional and modern timber framing, conservation building.

Profession

Energy Efficient Construction,

Main business activities

  • Energy efficient extensions and new-build
  • Barn conversions-conservation building
  • Traditional heavy timber framing and repairs

Environment

Company philosophy

"Pleasure in the job puts perfection in the work". Aristotle,330 B.C. "We haven't learnt much in the last 2000 years, have we?" Iain McCaig,2005 A.D.(wearing blue hat on left). This is a small business with the director working on site.The on site operatives are both male and female, cover a wide age range, and are all sympathetic with environment conscious and conservation building. Our ideal projects allow us to combine the soul quality and artistic freedom of traditional craftsmanship with the thermal performance of an energy efficient modern building. Mike first worked on a carefully designed energy efficient building in 1996, and since then has been on a steadily improving journey. In 2007 we started using the Passive House zero thermal bridge detailing where possible on our jobs. In 2010 we started an extension and renovation that had been designed to PH principles using PHPP to achieve 30 kwh/m2/yr. In 2011 we started the first new build certified Passive House in Herefordshire. Mike's intention in the future is to only build to Passive House principles.

Environmental Policy

Environmental Policy 1. Ensure that all main employees and regular subcontractors are genuinely committed to, and sympathise with, the company policy. 2. Work within 25 miles of our base at Garway Hill, Herefordshire. 3. Use home-grown sawn timber and locally sourced materials wherever possible. Develop and maintain supply lines with local companies providing ecologically sound products and sevices, both to support their businesses and benefit from their specialist knowledge. 4. Use recycled/reclaimed materials where possible and practical. 5. Avoid using tropical timber and plywood. Raise awareness with suppliers of the need for certification of timber products. 6. Build to high standards of insulation and airtightness and carry out airtightness testing when practical. Continually develop techniques and detailing to raise these standards. 7. Encourage clients to install renewable energy systems and to use energy and water conservation measures. 8. All waste to be separated into the following categories:- metal and plastic for recycling, cardboard for recycling/composting, timber for re-use or fuel for woodburners, rubble for hard-core. Landfill to be kept to a minimum.

Materials Sourcing

see above

Energy Efficiency

see above

Reducing the environmental footprint of the business

see above

Mike Whitfield Construction Ltd : Projects

Conversion of Upper Twyford Barns

Project Date 2006
image of Conversion of Upper Twyford Barns
N elevation of main barn

scope Building Contractor for whole project
aims Rebuild and conversion of two barns of approx 320m2 owned by Duchy of Cornwall into offices for sustainable architects Architype.This project won the national Royal Institute of British Architects Sustainability Award 2007, for the building that most elegantly and durably demonstrates the principles of sustainable architecture.
measures Roof and wall frames designed to minimise cold bridging.Warmcell insulation in breathable construction. Careful airtightness detailing.Homegrown timber throughout.High performance windows. Woodchip boiler with local supply. Reed bed.Low flush w.c.s, waterless urinals.Low energy lighting.Reclaimed stone,slates and bricks.
monitoring Awaiting results fom woodchip boiler.....Airtightness in 2010, four years after completion, was permeability of 1.3m3/m2/hr@50pa

New energy efficient house

Project Date 2007
image of New energy efficient house
Crucks and wall frames

scope Building contractor for whole project. Designed by Jim Rann Architects. Building regs and detailing by MWC Ltd.
aims Oak internal frame with floor beams and 3 upper crucks.External envelope masonite I beams.The idea was to build a house with the feel and soul quality of an old house and the performance of an energy efficient modern house.
measures Locally grown oak.Warmcell insulation (200mm walls and 300mm roof)with minimal cold bridging.Solid insulated floor slab and masonry internal walls on ground floor for thermal mass.Reclaimed roof tiles.Ecoplus windows and doors.Solar hot water panels and Clearview woodburner heating thermal store, with excess going to underfloor heating. Microbore pipes from manifold to distribute hot water.Ifo low flush w.c.s.Rainwater collection tank to supply commercial herb garden.South facing conservatory.Passive ventilation from wet areas.Careful airtightness detailing to inside and outside of frame.Electrisave electricity monitoring.Low energy lighting throughout.
monitoring Airtightness test gave unofficial (self tested) permeability result of 1.3m3/m2/hr@50pa.(Building regs reqt. is 10m3/m2/hr).

New certified Passive House

Project Date 2012
SE elevation April 2012

scope Building contractor for whole project. Designed by Janet Cotterell of CTT Architects. Building Regs and detailing by MWC Ltd. PHPP by Ruth Busbridge. Energy Consultants Alan Clarke and Nick Grant.
aims New build timber framed Passive House, 140m2 floor area.
measures Home-grown douglas fir cladding and lime render.High performance windows.Reclaimed slates.Sedum roofs on porch and mvhr shed. Passive house thermal bridge free detailing. Airtightness to PH reqt < 0.6 airch/hr. Low flush w.c.\'s. Breathing wall timber frame with warmcell insulation.Solar hot water.Silicate masonry paints.Os floor oils.
monitoring tbc
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