We use taped OSB on the inside of our timber frame houses to make them airtight allowing the timber frames to breathe/dry out to the outside and to the inside. We've achieved excellent Air tightness results as low as 0.3 air changes/hr @50Pa with this method, easily achieving the Passive House standard. One of our latest developments is the twin-wall timber frame house build system seen above that totally eliminates Cold Bridging.
Our 300mm Twin-Wall stud is insulated with dense Cellulose insulation (60kg/m2). This Cold Bridge free wall build up achieved a U-value of 0.11W/(m2.K) from the Passive House Institute. Our Timber Frame house walls have a Decrement Degree of over 12 hours giving the house a high thermal mass effect and excellent heat retention. This Timber Frame wall-build up is designed to hold onto heat for a long time when you turn off the heat and to minimise daily temperature fluctuation, Fermacell absorbs noise, regulates humidity internally and is impact resistant.
Our patented foundation system is certified by the Passive Haus institute as having a zero Cold Bridge where the wall meets the floor and is an excellent companion for our Passive Timber Frame houses.
Viking Double L foundation element with a Timber Frame wall and a concrete block external leaf. You can see how easy it is to run the Radon Barrier with our system; this is the major fault with our competitors!
Our silent Timber frame floors are 35% quieter than standard concrete floors. This is easily achieved by putting soft acoustic materials between hard materials.
This is a section of a typical external wall in our Timber Frame houses using externally plastered wood fibre board and an OSB air tightness layer to the inside. The insulation is pumped Cellulose!
Passive Slab is Passive House certified to deliver the lowest U-value (as low as 0.08W/m.K) on the market and eliminates the critical wall-floor Cold Bridge. Read More
Cellulose insulation is made from recycled wood fibre, primarily newspaper. One hundred kilos of cellulose insulation contains 80 to 85 kilos of recycled newsprint. Waste disposal is a major problem for cities. Cellulose unquestionably meets all requirements for insulation specified by the guideline. Read More
ICF Insulated Concrete Forms are formwork for concrete that stay in place as permanent building insulation for energy-efficient, cast-in-place, reinforced concrete walls, floors, and roofs. The forms are interlocking modular units that are dry-stacked (without mortar) and filled with concrete. The forms lock together somewhat like Lego bricks and serve to create a form for the structural walls or floors of a building. Read More
Our Timber frame Passive Houses usually arrive on site pre-finished with Cellulose Insulation in the walls and triple glazed Passive House windows fitted. The Timber frame walls can be pre-finished internally, so no wet trades are required on site.Read More
Passive Houses are highly insulated, comfortable, cold bridge free structures that require little heating, they usually have triple glazed windows, heat recovery ventilation (HRV) and high air-tightness levels. It doesn’t cost extra to build a Passive House using our construction methods, as money saved on a complex heating system pays for better windows or extra insulation. Read More