24th Feb 2011

Wally Smith of Suffolk Tree Services and his assistant have been cracking on milling the oak for the building. Now on the home straight with just a few more floor joists to cut.

Some of the oak has the most amazing patterns in the grain

....including this 'cats paw' pattern that occurs when there is epicormic growth on the stem.

The exact location of the building has now been marked out on the ground and the Bradfield volunteers have been busy putting up the safety fencing around the plot.

Having completed a levels survey it has confirmed that there will not be quite enough 'fall' for the waste pipe running to the septic tank. This means it will be necessary to use a pumped system to transfer waste water.

Construction work is due to start around the 7th March. The target completion date is the end of June...fingers crossed!

15 February 2011

Welcome to my blog which will follow the construction of Suffolk Wildlife Trust’s new visitor centre for Bradfield Woods over the next 6 months or so. I hope you will share the trials, tribulations and successes of this innovative building project.

The first challenge has been to come up with a design that will sit comfortably in its woodland setting. The building it will be replacing was little more than a glorified shed. That has now gone and the new building will be sited amongst the trees nearby.

While work has not quite started on the ground, there has been lots of work ‘behind the scenes’ from design and planning to sourcing timber for construction.

Our aim is to make this building as eco-friendly as possible with the following targets:

1. Ideally the building will be carbon negative, i.e. there will be more carbon locked up in the fabric of the building than was used to construct it.
2. No concrete or gypsum plaster will be used in the construction
3. The timber will be sourced from the nearest locations possible
4. Recycled materials will be used where they can

In a nutshell, the building will be mostly green-oak framed and built on a simple oak beam foundation – literally just resting on the ground. The external walls will be clad in western red cedar and the roof will be clad in zinc.

It is not a large building, only 13.3m x 8.8m. It will consist of a main multi-purpose room (education, display etc), two disabled WC’s, an office and a covered walk through area with interpretation.

Key Partners

Modece Architects

Based in Suffolk, Modece have brought to the project their skill and experience in designing sustainable buildings.

J P Chick & Partners
David Cantrill of JP Chick provided the structural engineering expertise to design the somewhat unconventional foundation design and the superstructure.

Suffolk Tree Services

Andy Gentle’s STS are undertaking a vital part of the project felling and milling much of the timber that will be used for the building.

Canham Builders

A specialist in timber framed building, Mike Canham and his team are the main contractor for the build. Canham Builders built the Trust’s Lackford Lakes visitor centre, Brooke House office extension and the workshop and volunteer accommodation at Bradfield Woods.

Timber

Oak Frame

The bulk of the oak required for the frame has come from the Trust’s Groton Wood near Kersey. Thinning the large number of oak trees in the southern part of the wood will benefit the hazel coppice beneath. Additional oak has come from management work in Bull’s Wood close to Bradfield.

Groton Wood oak prior to milling

Oak stem on the saw bench

First few oak beams cut for foundation structure

Western Red Cedar

The Trust purchased 17 tonnes of western red cedar from a wood owned by the Rushbrook Estate close to Bradfield Woods. The cedar was being felled as part of a programme of work to restore ancient woodland that had been planted with conifers in the 1950’s.

Western red cedar de-barked ready for milling

Some of the cedar milled into boards for decking and cladding