Prince’s Foundation for the Built Environment Summer School
PRODUCT UPDATE
Dynamic Modelling
In July we were very honoured to host part of a three week long Summer School run by the Prince’s Foundation for the Built Environment. The Summer School takes place each year and aims to develop an in-depth knowledge both of traditional building and repair techniques and how these can be applied in the twenty-first century.
students from Simon Fraser University in Canada.
After an initial week based in London undertaking geometry and structure exercises and architectural drawing tours, the Summer School moved to Wales for the last week in ˆ July. The students spent a week at Ty-Mawr working with expert craft teams to learn craft The 27 participants were a mixture of Building and conservation skills. The first day was lead Craft Apprentices and Graduate Fellows. by Ty-Mawr ˆ ’s Most of the 12 craft Technical Director, apprentices came from the Nigel Gervis, and UK, including looked at the “Week two at Ty-Mawr ˆ was heaven. stonemasons, carpenters, importance of lime To be in that place, surrounded by roof slate and tilers and a passionate, knowledgeable people was in buildings blacksmith, but there was including a a carpenter from Jamaica truly a privilege.” JOSH BURRELL demonstration of (who not surprisingly found the Welsh summer rather decorative plasterwork by the highly regarded chilly!) and a stonemason from St Helena! lime plasterer Jeff Orton. On subsequent days The Graduate Fellows were drawn from the students spent a day on each of the crafts disciplines such as Architecture, Engineering of timber framing, thatching, dry stone walling and Town Planning. With just one graduate and plastering under the tuition and support from the UK they were a very cosmopolitan from John Munro, Alan Jones, Stuart Fry, group coming from Afghanistan, Gambia, Julie Haddow, Finn Fraser and Tom Jones. India, Italy, Netherlands, the USA, and 6
‘A little bit of heaven’
Extended Paint Range!
Solid wall (500mm=1.9 W/m2K)
Tˆy-Mawr Lime Hemp Plaster (50mm=1.2 W/m2K)
Improved thermal value, reduced energy bills, reduced carbon footprint
With the ever increasing pace we are being encouraged to insulate our old buildings, our concern for the impact insulation materials might have on the building structure occupies more and more of our time and energy!
Options
Calsitherm Calcium Silicate Board (30mm=0.77 W/m2K)
T y-Mawr ˆ now has an extended range of our ever popular clay paints. These paints are an exciting alternative to emulsion, providing a distinctive, visually soft matt finish with great covering power and performance, free of VOCs and other harmful emissions, which can benefit allergy and asthma sufferers. Not only are we able to offer our customers a further 126 colours, we have also become a colour palette tinting centre for bespoke orders.
For the final week of the Summer School the students moved on to the National Botanic Gardens of Wales where they designed a new structure for the grounds drawing on the inspiration and skills that they had received.
We are concerned that many of the ‘mass’, highly processed materials being used will actually trap moisture in the walls leading to all the problems that we are already familiar with (since the introduction of impervious paints and plasters, cement mortars and renders as well as concrete floors). We are gradually un-doing the damage these materials have caused over the last few decades, so are we in danger of making the same mistakes again? Well, we believe we could be, which is why we have been working very closely with a number of individuals and organisations to look at the most appropriate ways of insulating solid walls in particular and the best way to model what can happen within the building structure postinsulation installation! We are now able to undertake dynamic modelling using WUFI and are working closely with the Welsh School of Architecture in developing a project that would concentrate on improving the evidence base to better understand the impact of the various solutions particularly in relations to the building structure types we have in Wales. See website for latest news…
We look forward to receiving the 2011 participants on the 25th July for another inspirational week!
Setting the standard for natural insulation
In the evenings the students were inspired by lectures given by craftsman and sculptor Rory Young on the buildings of the Welsh Marches and the conservator Ned Scharer, who described his recent work restoring the Cosmati Pavement in Westminster Abbey. They also explored the local area (and hostelries!) on walking tours exploring the history of Llangorse Lake and the buildings of Brecon. The highlight for many of the students was a visit by HRH The Prince of Wales who dropped in for a cup of tea to see what they were up to. He visited each workshop and even had a go at thatching where tutor Alan Jones said His Royal Highness ‘showed considerable promise’!
Following on from our successful Welsh wool insulation batts, we are now able to offer Thermafleece EcoRoll, a low density wool based insulation roll that is quick and easy to install. Designed to minimise the up-front cost, it makes wool based insulation a more affordable option to a wide range of users building upon the success of previous roll designs. The new TF35 roll is at the top end of our range. A high density wool insulation, the TF35 is designed to meet the most demanding energy efficiency requirements with a thermal conductivity of 0.035W/mK, no quilted wool based insulation meets its performance. To accompany our wool range we also offer Thermafleece Hemp insulation. This plant fibre insulation fits securely between rafters, joists and studs providing excellent thermal insulation performance. Each batt comprises 60% UK grown hemp, 30% recycled polyester and 10% polyester binder with a high recycled content. With a density of 25kgm-3 it provides great acoustic absorption.
Woodfibre Board (100mm=0.3 W/m2K)
Add colour to your walls and ceilings Tˆy-Mawr Thermafleece Wool or Hemp Insulation (100mm) & Wood Wool Board (15mm=0.30 W/m2K)
Edenbloc35 Composite Board (100mm=0.26 W/m2K)
Here at T y-Mawr ˆ we are also pleased to see the launch of EdenBloc35, being the first fully British manufactured rigid insulation, it is made from recycled carpet wool which makes it one of the most sustainable insulation products. EdenBloc35 is a natural, low density rigid insulation that can be used in many internal situations including wall lining, under rafters, between rafters and timber studs. Manufactured in the UK, it provides sizable energy efficiencies in service and locks up nearly twice its own weight in CO2 which all contributes to its excellent carbon footprint. The unique patented technology combines excellent thermal performance with the breathability of natural fibres, bridging the gap between synthetic foams and other natural fibre insulation materials. It has a thermal conductivity of 0.035 W/mK and the ability to eliminate thermal bridging factors which can improve insulation performance by as much as 30% compared to other natural insulation.
We are pleased to introduce a coloured range of the ever popular Celenit wood-wool boards. The panels, painted with potassium silicate biological colours, are certified by naturalplus® for false ceilings and partitions. Available in 11 colours to suit a range of interior design options. They create a comfortable working environment by regulating noise levels, preventing the transmission of sound and insulating from cold, heat and fire. It is easy to work with and install, allowing you to save time and money.
Always on the look-out for innovative new products - we now supply the Homatherm range of fibre insulation to give our customers a wider choice to suit different applications and budgets. As well as the wide range of boards on offer, the range also includes the flexCL®, a top performing cellulose insulation batt and holzflex® Mais, the world’s first completely natural woodfibre insulation bound with a maize based binder providing durable performance for the highest demands.
For the latest news, case studies, product list, descriptions, current prices, application guides, technical sheets, NBS clauses, quantity calculators and full electronic shopping – visit our new website www.lime.org.uk
Ty-Mawr ˆ
Launch of the Natural Building Centre
courses at Ty-Mawr ˆ Ty-Mawr ˆ has been running specialist courses in traditional and ecological building since 1996 on the site of their head office, formerly a working farm and still the home of the founders of Ty-Mawr ˆ Lime in the heart of the Brecon Beacons National Park. The newly restored grade 2* listed training centre was officially re-opened by Their Royal Highnesses, The Prince of Wales and Duchess of Cornwall in June 2009. Delegates attend from all over the world not only attracted by the quality of teaching but also the ‘backdrop’ – the ongoing restoration of the whole farm complex provides an exemplar for what can be done using traditional and ecological materials and technologies.
Introduction to Lime - 7th July, 8th September, 7th October, 3rd November Lime Plastering - 8th July, 9th September, 14th October, 4th November Introduction to Lime and Lime Plastering (2 day course) 11th August Drystone Walling - 26th August
We were very pleased to be invited to speak at the launch of the Natural Building Centre, Betws Y Coed which has been set-up by Ned and Sophie Scharer. We have worked with Ned and Sophie Scharer for over a decade, initially as customers and then Ned worked for T y-Mawr ˆ part-time as a Product Specialist, holding stocks and supporting clients in North Wales whilst maintaining his conservation company. Such was the interest and the need for local stocks, local knowledge, advice and support, that Ned and Sophie decided to establish The Natural Building Centre at a site just outside Betws which will also be an on-going restoration project - Plas Tirion - a 16th century farm. Their website is fully operational – www.thenaturalbuildingcentre.co.uk - or call Ned or Sophie on 01492 640888 or email - post@thenaturalbuildingcentre.co.uk. We wish them well!
Historic Research & Heritage Asset Advice This spring, we have introduced a complimentary service to our wellestablished product support base. We can now offer to produce research reports looking into the history of a building, provide heritage asset advice on listed and unlisted buildings, carry out historic farmstead assessments and advise on new build within the historic environment. Sam Hale will be heading up this service. He has many years of professional experience in researching and analysing a variety of buildings from cottages and farmhouses to prisons and hospitals! Please contact him on sam.hale@lime.org.uk or call our Brecon office on 01874 611350.
Thatching - 14th July Decorative Plasterwork - 23rd July We also design and deliver training tailored to meet individual requirements, either at our training centre or on site. Over the last year clients have included contractors, developers, Local Authorities, The National Trust, British Waterways and educational establishments such as the Welsh School of Architecture and the University of Bath. We also offer a RIBA accredited information seminar 'Lime - traditional building products for today's world' which we deliver all over the UK. Please e-mail training@lime.org.uk for further information. All delegates attending lime courses at Ty-Mawr ˆ will get a free copy of “The Lime Handbook” (rrp £20.00). Course Offer! We are offering everyone who attends our lime courses at Ty-Mawr in 2011, a 10% discount off the rrp of our fat lime plasters and mortars, hydraulic limes and wood wool boards for up to 12 months after attending the course. Please see website for full terms and conditions. Mike Scruby, our Training Co-ordinator, leaves us in the autumn to go into teaching. He will be greatly missed by staff and clients alike, we take this opportunity to thank him for all his hard work and commitment and especially for making the Summer School such a success. We wish him well in his so new career!
Foundation Degree in Sustainable Development in Construction T y-Mawr ˆ and Coleg Powys have joined forces after a successful bid into a collaborative project with the University of Wales to develop and deliver an exciting new degree programme bringing sustainability together with construction. The foundation degree in ‘Sustainable Development in Construction’ gives individuals the opportunity to understand the implications of sustainability, sustainable materials and technologies and explore solutions already achieved in the built environment through case studies. There are many sustainability degrees that focus on the engineering and theory behind the materials and technologies but few that attempt to help students develop solutions through the understanding, selection, implementation and management of them. With emphasis on the use of sustainable materials in the built environment this foundation degree develops skills and the appreciation of the changes required to achieve sustainability. The course aims to instil in students a sense of enthusiasm and passion for sustainability and sustainable development in construction.
New Recruits We welcome Scott Bradburn to our team as a Product Specialist specifically supporting our wide range of traditional and sustainable lime plasters. Scott has been working in the conservation of historic buildings for the last 8 years, initially as an archaeologist and after training under the supervision of English Heritage, as a lime specialist. He is a qualified CSCS Heritage Skills plasterer, experienced in traditional plastering as well as in the use of modern machine spray application methods. Scott is available for site visits, site supervision and training. Our experience shows that on-site support, advice or training can greatly aid the success of the project, ensuring the products used are fully understood and the right conditions are provided on site. Scott can be contacted at scott.bradburn@lime.org.uk.
Caring for buildings…Caring for the environment…Caring for health…
Newsletter 2011
Products Manufacturers & suppliers of: • Traditional Fat Lime Mortars and Plasters. • Limewashes and Pigments. • glaster® - Plasters and Mortars. • Lime Hemp Plasters. • Limecrete (concrete alternative) floors. • Natural Insulation including Ty-Mawr ˆ Thermafleece sheep’s wool insulation, Thermafleece hemp insulation, FlexCL recycled newspaper batts and Edenbloc recycled wool. • Singleton Birch Hydraulic Lincolnshire Lime - the only British hydraulic lime and Castle Hydraulic Lime.
I looked over Jordan...
• Aglaia Plant-based Paints - including:
Inspired by our website and our work with locally sourced, sustainable building materials, we were thrilled to be invited to do some work and training with the Royal Botanic Gardens near Amman, Jordan. Our investigations revealed a wealth of materials available locally including lime, plant fibres, naturally fired aggregates and pozzolans. Through experimenting with these materials and by visiting local historical sites, we were able to develop mixes suitable for plastering, laying limecrete floors and lining pear-shaped cisterns for TTTyyˆyˆˆ-M --wwwwM alimaae.o.orw M rkrr w w the rain-water harvesting for the w.l ww w. g.u wime .lime.or rgg. .uk uk gardens (a forgotten technique but one with a tradition in the region of some 6,000 years).
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Natural emulsions (internal wall paints).
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Paints, glazes, oils and waxes for wood.
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Paints for metalwork and radiators.
• Earthborn Clay Paint • Beeck’s and Earthborn Mineral Paints • Building boards/plaster carriers including Reed Mats, Reed Boards, Wood Wool Boards and Woodfibre Boards. • Laths, Wattle and Battens. • Tools and Books.
Services • Site Visits or meetings with one of our Product Advisers. We also welcome Sam Hale, a graduate from the University of Bath MSc course in the Conservation of Historic Buildings. Sam, who was awarded the 2010 Oculus prize for best attainment on the Masters course, joins us as our Historic Building Researcher, responsible for extending the range of services we are able to offer - see ‘Historic Research and Heritage Asset Advice’article above. He will also be undertaking a number of case studies where T y-Mawr ˆ products have been or are being used. Sam can be contacted at sam.hale@lime.org.uk but keep watching the Case Studies section of our website for his work! Finally we, welcome Michael Aldridge to our Production Team and Dan Pearson to our Warehouse Team! They join us at a busy time of year where we are processing up to 75 orders per day! All very good news for traditional and sustainable building as well as the environment!
…breathing life into buildings… www.lime.org.uk
Manufacturers & Suppliers of traditional & ecological building materials Manwerthwyr a chyflenwyr deunydd adeiladu traddodiadol ac ecolegol
• Product Support (including NBS clauses). • Established Courses (see back page for dates and for details of a 10% product discount for all course delegates in 2011!) • Product Information Days and RIBA accredited CPD seminars. • Historic Research and Heritage Asset Advice • Site Supervision and Bespoke Training • Visits to Ty-Mawr ˆ for interested groups (by prior arrangement). • Hire of the Training Centre. Email info@lime.org.uk for more information.
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Her Royal Highness, Princess Basma bint Ali is one of the main driving forces behind this inspirational community project supported by engineers, designers, architects and local craftsmen who all took part in the training. Her vision has been supported by the Ministry of Agriculture who have donated over a square kilometer of land in a country park at Tel el Ruman, 25km from the capital Amman. The new development will include 6,000sqm of buildings - an education centre, mosque, research and visitor centre that will be built with local, sustainable, traditional materials. The intention is that the site will be cement-free! We will keep in touch with the wonderfully hospitable team and hope to return their generosity and hospitality one day in Wales. For those of you eager to know more, we will keep you posted via the website, it will be fascinating to watch!
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New Catalogue! We have released our comprehensive new and improved catalogue packed with useful information on our entire product range. The catalogue guides you through your choice of lime, insulations and paints with user friendly selection tables and comparison charts as well as great tips. Wonderfully illustrated with plenty of images of products and projects, the catalogue provides customers with a one-stop resource for our full range of sustainable building products. The catalogue can also be viewed online at www.lime.org.uk
…breathing life into buildings… Distribution warehouse: Unit 12, Brecon Enterprise Park, Brecon, Powys LD3 8BT Tel: 01874 611350 Fax: 01874 658502 Training: T y-Mawr, ˆ Llangasty, Brecon, Powys LD3 7PJ Tel: 01874 658000 Fax: 01874 658502 www.lime.org.uk