Lammas eco village

summer 2011

The Lammas project at Tir y Gafel, Glandwr, Pembrokeshire, is Wales’ first collective initiative based on what is now the (TAN)6 national planning guidance for sustainable rural communities. (One Planet Development).

Planning permission has been granted for nine houses (four of them in a terrace and the others as individual plots), with [...]

Wall types

Timber frame and SIPs Walter Segal Solid timber Ziegel blocks Steel frame Insulating concrete forms Brick Concrete blocks Stonework Hemp / Lime Rammed Earth Cob Straw Bale [...]

Larch and Lime passivhauses

Although not self built, the two passivhauses at Ebbw Vale may be very relevant to many self builders. Built in 2010 as show houses mainly for the attention of housing associations, they are attractive and innovative while being relatively modest. The 3 bed Larch House is clad with a locally sourced larch rain screen and [...]

Van Midden House

The Van Midden house is at the Lembas Organics farm at the Bridge of Muchalls, Stonehaven. It is a very low energy house due to high levels of insulation and the use of timber I beams to reduce thermal bridging. The external rain screen is Sitka spruce with an organic paint finish.

The central [...]

The Tree House

The Tree House in Clapham, London is a recently completed and very elegant example of a self built detached house. It has, on occasion, been open to the public as part of the London Open House programme. Situated on a small urban plot of land dominated by a large sycamore tree it has taken [...]

Rowangarth

October '09

Jim and Jo Monahan are nearing completion of their passive solar house in Spinningdale, Sutherland. This is a timber frame house which utilizes roundwood for many of the structural members. This is a way of using timber at its maximum strength because it is not cut across the grain. The timber framing [...]

Kirk Park

Aberfeldy, October 2009

This is a timber frame house of  76 sq,m. built in 2001. In terms of heating it benefits from its double storey living area facing south and the limited amount of glazing to the north. There is 200mm cellulose insulation in the roof, 150mm in the floor and 145mm in the [...]

Kashentroch, Banchory

October ’09

Home of Alexander and Vinny Burnett, Kashentroch is an elegant and spacious open plan timber frame house in a beautiful setting close to the Dee. The original part of the house (with the pitched roof on the right of the picture), built about 5 years ago, has recently had an addition of [...]

Houses by Ecos

ECOS, (formerly known as the Somerset Trust for Sustainable Development) is a charity which has been behind several green house building initiatives. Although not self-build, their houses are excellent examples of what is possible and are open to viewing on certain occasions. At present there are two schemes which are complete or nearing completion and [...]

Timber

September ’11 

   

Constructing with FSC timber (or another accreditation organisation such as PEFC) is potentially one of the greenest ways of building for several reasons.more +/-»

However, the UK seems to have a rather backward, or at least over-cautious attitude towards timber construction and this is outlined below.

Grading timber

There are [...]

Timber frame and SIPs

overview

‘Timber frame’ has several meanings:

Platform frame where walls are assembled on site into storey height panels and errected and then floored over. This then forms the basis to build the next floor on top. Balloon frame are similar but the walls are double storey. This is now mainly historic because the long [...]

Walls

DPCs DPMs etc.

It is important to isolate all the dry inner surfaces of a building from any outer surfaces which might absorb water and be damp. The Building Regulations cover this subject here. While some outer surfaces are designed to be totally water resistant (such as roof coverings) many other areas can absorb [...]

Designing with timber

timber house in the Field of Dreams, Findhorn Foundation

See some of the wealth of interesting UK timber designs here.

Advantages and drawbacks

Timber can provide some of the greenest solutions to house building for several reasons

timber is inherently low in embodied energy. This is especially true if the timber can be [...]

Walter Segal

a Segal self build house in Brighton

The Walter Segal self build approach to construction is uniquely organised so that anyone who can use basic tools such as a saw, hammer, drill/driver, tape measure, etc. can build a house. There are even one or two cases of single parent mothers, who have had only [...]

Window design

There are many purposes a window can serve and several of these have important ecological considerations:

Letting light in Collecting solar heat Providing a view Acting as a door The visual character of a house

Windows may have associated drawbacks to consider:

They may let in too much light at certain times Too much [...]

Structural Timber

From a green standpoint the main thing to remember is that timber should be woodmarked and sourced as locally as possible, preferably in the UK.

Structural timber has the advantage over most other structural materials of being renewable and also a relatively good thermal insulation material.

Structural timber is usually of the following types

normal [...]