Thanks to our long-time suppliers Vastern Timber, who supplied British-grown Western Red Cedar for the cladding and fencing on our recent project in Bath, for this case study and write up
Our Church Rd project coming together in Combe Down. Among other changes, we designed-out a few tons of high energy steel, leaving an entirely timber framed structure.
Now nearing completion its looking great. Credit to HRA architects for the concept design, Henry for the technical design and George and the Greenheart team for all the hard graft.
Watch this space for updates as we continue to ice the eco-cake!
After years of intending to join the ranks at the National Self-build and Renovation Centre, we have finally found the time to rustle up a stand (one day soon we might even finish it!).
So if you're ever on the M4 at Swindon and fancy a visit, come and find us - we're at the back near our pals at the Green Building Store.
We have begun work on this contemporary low energy house on a garden plot in Bristol, designed by Emmett Russell Architects.
On this occasion, we are acting as principal contractor and working with architect, engineer and energy consultant to ensure the final product meets the design criteria in every way.
The house will have a super insulated timber frame structure sitting on a conventional concrete raft/trench fill foundation. Walls will be finished with a combination of local rubble pennant stone on the ground floor and render above, with the roof finished in traditional standing seam Zinc.
Typical of houses that we have built in the last few years this house has not only been designed to near Passivhaus standards, but also uses natural (non petrochemical) products wherever practicable and is looking to the future for its energy supply and ways of living.
• Very little space heating required
- cheap to run
- very comfortable
• U values below 0.13
• Airtightness of less than 1 acph
• Minimal cold bridging
• High quality MVHR unit with rigid Lindab ducting
• Careful consideration to maximizing solar gain and eliminating solar overheating
• Photo voltaic panels with potential for battery add on later
• Air Source Heat Pump (ASHP) instead of a gas boiler providing hot water and heating
• Electric car charging point provision
The house is scheduled for a January 2020 finish - keep an eye on our website and Instagram for site updates
On 15th March we'll be collaborating again with The Green Register opening up our site at Eastrip Lane, Colerne for a Futureproof site visit and talk about this contemporary three-bedroomed timber frame house built to Passivhaus standards.
The topics discussed in this tour and talk - materials used, MVHR, airtightness and methods of construction - are just as relevant to retrofit as new build projects.
The building is timber frame constructed on site from 360mm timber I-beams and wrapped in 100mm Pavatex woodfibre boards. The external faces will be either render or geometric cement sheet panels, whilst the roof is anthracite corrugated cement sheet. Windows are from Internorm (Passivhaus certified). All walls and roof will be insulated with Warmcel 500 Cellulose insulation.
The building is still under construction and so during the visit, it will be possible to see all aspects of the building fabric: air tightness layers, MVHR ducting, timber frame and Pavatex wood fibre.
Places are limited. Visit The Green Register website for full details and to book online.
Work continues at Hill House in Bath. All the groundworks are now complete, which were always to be the biggest challenge in getting the house built. We needed to provide level access from the road on to the site which was 3m lower. To add to complications the site is sloping steeply and was also close to the adjacent Georgian house. We have used a combination of retaining structures, underpinning and strip foundations to tame the site!
The carpenters are now on site to get the frame going - a 360mm thick engineered timber wall for exceptional U-values and breathability, with a continuous airtight membrane to the inside of the frame to guarantee air quality, efficient heating, and a comfortable living environment for the clients.
Feb 2019 - steels going in:
January 2019 - ready for the timber frame:
December 2018 - house slab prep and pour:
November 2018 - Comflor pour, dig out and site logistics
October 2018 - parking area ComFlor prep:
Glen Cottages is a two-storey extension project we completed last year just outside Bristol, transforming an old stone cottage. Read all about it and see more photos here.
The scaffolding is coming down and Second Fix at our Passivhaus project in Nailsea is well underway. Oak architrave and skirting boards are being fitted and the beginnings of the kitchen on this timber framed newbuild near Bristol that achieved a preliminary air test result of 0.27ach in February.
Sustainable Design & Build in Bristol and Bath, specialising in Passive House construction