Energy efficient home at the Homebuilding and Renovating show
We thought it would be a good idea to kill a number of the proverbial birds with one stone. So we took the idea of putting on an energy efficient home exhibition for Home Building and Renovating and used the base model of our new range of six houses based around our show home in Herefordshire as the energy efficient home.
The Dinedor is the smallest of the Woodhouse range of six houses and forms the centre piece of our energy efficient home exhibit. We are showing the five keys to constructing an energy efficient and sustainable home by Oakwrights.
OAKWRIGHTS® have developed an encapsulation panel system for oak frame houses specifically designed to be high performance and low impact whilst meeting all current and foreseeable Building Regulation legislation. Through the use of low impact natural materials, the system delivers an environmentally friendly panel with substantial health advantages. The panel is a composite design based on recycled wood fibre boards, made from more than 95% sustainable and non-toxic waste softwood which, used in conjunction with a natural hemp fibre filler insulation, delivers exceptional thermal and acoustic insulation, thermal storage capacity, vapour permeability and moisture control.
The proven advantages of the WrightWall & WrightRoof panels are:-
- Speed & simplicity of on site construction through off site manufacturing of panels under quality assured conditions.
- Highly versatile. It can be used in conjunction with different external finishes e.g. weatherboarding, render, masonry etc, to suit tastes and planning requirements.
- The encapsulation system can be used both in conjunction with a structural oak frame and also an independent structural system for other sections of the building
- High thermal insulation with minimal thermal bridging and high levels of airtightness, ensuring very low heating requirements and maximum comfort.
- Excellent acoustic insulation through natural materials and intelligent building shell design
- Highly breathable construction with no risk of condensation between layers.
- High density and specific heat capacity of natural insulations enhance thermal storage capacity giving a cooler environment in the summer and warmer in the winter.
- Natural insulations are highly permeable and hygroscopic, thus dispersing internal moisture accumulation and protecting the building fabric, vital for the long term health & durability of the building.
Health & Environmental
- Composed of over 95% sustainable and recyclable materials eliminating the use of materials detrimental to the environment.
- Recycled wood fibre boards are made of waste wood that lock up approximately 1.2 tonnes of CO2 for every tonne of product manufactured
- Substantial reduction in carbon footprint when compared to traditional systems or composite panels based on petro-chemical products.
- The use of non-toxic materials ensures a healthy living environment and removes the dangers such as carcinogens or ‘sick building syndrome’ associated with chemical or petro-chemical products used in conventional systems
- Results in an air tight but breathable structure helping to reduce the risk of respiratory ailments such as asthma.
Windows & Doors
25% of a building’s heat loss is through the windows and doors. So spending some time choosing your doors and windows to perform, is time well spent. Many high performance windows use products with a high embodied energy such as petro-chemicals or metals. For us, using natural materials is important, so finding a high performance window with a frame engineered in oak was the only option we wanted.
Oak makes such a good window frame material; due to its natural resistance no weather protection is required, which would otherwise mean more chemicals. Green Building Store’s newly launched range of Ecoplus windows and doors offer a beautiful solution for low energy homes. Hand-crafted in Green Building Store’s Yorkshire workshops, Ecoplus combines ultra-efficient triple glazing with engineered FSC Pure timber, finished with natural plant oils.
Cold, leaky draughts are a thing of the past, as high-tech, responsive air management ensures the Low Energy House has plenty of fresh, pre-warmed air. Managing the air in the house means controlling the air coming in, and the air going out, so every joint needs to be carefully taped together to ‘seal it tight and ventilate WRIGHT’. The WrightWall™ and WrightRoof™ encapsulated panel system has been designed specifically with air tightness in mind. Not only are all the surface joints sealed with a high-tech butyl tape, but internally where the panels interface, a band of compressive foam is used ensure an air tight seal is made.
With such a high level of air tightness in place, an efficient extraction and ventilation system is needed to make sure the living spaces are fresh and comfortable. Stale air or moisture has always been dealt with by opening a window, or turning on an extract fan; losing everything, all the heat and bad air at the same time. Using mechanical ventilation, with heat recovery air pump, can recover the heat from warm moist room, such as bathrooms and kitchens, and pre-heat fresh air as it is piped into the other living spaces – greatly reducing lost heat.