BESPOKEN is committed to using wood from managed and sustainable sources.
Not all hardwoods available in Ireland are cut from sustainable sources. Bespoken recommends its clients use traceable products.
Bespoken Houses are built to Swedish Building regulations, which have an average 10% better insulation standard than the UK building regulations. To judge how warm a house built with particular construction type is going to be we compare the 'U values' of the materials it is made out of.
The U-value is defined as the rate at which thermal energy is conducted through unit area, per kelvin temperature difference between its two sides.
U = rates of loss of energy
surface area x temperature difference
The lower the U value the better is the insulation.
Current U values in Bespoken houses and the Irish requirements
Jörnträhus Irish Building Regulations Walls 0.267 0.45 Windows 1.56 3.30 Roof 0.24 0.25 Ceiling 0.16 0.25 Floor 0.215 0.45
Because a Scandinavian Log Cabin House is so well insulated :-
1. Less energy is required to heat the house
2. Low output heat sources eg wood burning stoves can be used to warm the house.
3. The energy efficiency of a Bespoken house can be further enhanced by the use of 'super insulants', contact us for details.
As is well known our environment is being damaged by human activity. One of the major factors damaging the planet is the release of Carbon Dioxide into the atmosphere. Carbon Dioxide is a "Greenhouse gas" which helps to form a sort of blanket around the Earth preventing solar heat from being radiated out into space.
All the wood in a Jorntra house is sourced from pine forests in the Norrbotten region in the far North of Sweden. These forests are the main source of income for the people of the region. They manage the forests, harvest the trees and replant them using documented techniques that have been used for over 50 years. The wood supplied to the Jörnträ factory is certified to prove their wood is from a sustainable source. The local Forestry Board has a sustainability policy statement which is available for you to view along with information about the Swedish Forestry Act.
Sediment cores from the sea beds and ice cores from the vast ice sheets of Greenland and the Antarctic scientists have been able to demonstrate that at periods in the Earth's history when Carbon Dioxide levels have been elevated then there has been a corresponding increase in global temperature. Thanks to mankind burning fossil fuels present day Carbon Dioxide levels are high, around 30% higher than they were 200 years ago, and global warming is an imminent danger.
Trees are our friends in combating global warming. They absorb Carbon Dioxide from the atmosphere by the action of Photosynthesis and store the Carbon in their wood. The more trees we grow the lower atmospheric Carbon Dioxide will become. By chopping down trees, making log cabins out of them, and growing new trees, we are keeping Carbon Dioxide out of the carbon cycle.
The same could not be said of other forms of house building &clay pits.
The weight of a log home is also substantially lower and foundations do not need to be as substantial leading to savings in concrete. It is even possible to eliminate concrete foundations entirely by using screw pile foundations. Also the interior walls are made of timber requiring no gypsum, another energy intensive product that leaves its scars on the earth's surface. The same with roofing material where mineral felt made using waste shale is used instead of clay tiles that need to be dug up, shaped and baked in an oven. Ultimately we believe it is possible to make a house with no 'wet trades' at all.
Some other areas Jörnträhus and Bespoken is keen to promote are:
Lean manufacturing techniques are exploited in the factory to minimise waste through optimal cutting patterns in raw materials. Offcuts are re-used where possible. In our business methods we promote re-use before recycling, and minimising paperwork through electronic data transfer. We do not believe in expensive offices, showrooms, salesmen in company cars. We want you to do the selling for us with a quality product at a competitive price.