Specification (all measurements are approximate)

We make many bespoke buildings and are happy to discuss any special requirements.

WARRANTY

7-year materials and labour warranty

The building is designed to have a life of 30 years but no guarantee or warranty is given to this effect. However, the Company warrants that the building will be free from any significant defect for a period of 7 years from the date of the Agreement for purchase. The Company will take reasonable steps to bring the Building into a condition where it is free from such defects.

BASE and FLOOR

Usually there is no need for a concrete base.

• The building rarely needs a concrete base. Concrete pads placed on he ground or dug in flush to the ground support adjustable feet so perfectly level ground is not necessary.
• Frame work for the base is provided by 150 x 100 mm treated timber held above ground level by the adjustable feet to allow an air flow beneath it. This air flow keeps the structure dry from below.
• The floor, which is 140 mm thick is constructed from 125 mm SIPs which contain 100 mm insulation. It is very rigid and very little heat escapes through it.
• Most frequently the floor is finished with a beautiful engineered oak board where the wear surface is 3 mm oak. This is laid on suitable underlay.

WALLS

• 190 mm (7.1/2 inches) thick.
• Inside surface is plasterboard on 19 x 38 mm battens, skimmed with plaster and painted. The junction between the floor and walls has a 75 mm skirting board. The appearance is that of a house wall.
• Electric wiring is hidden behind the plasterboard and power points and switches are flush mounted as in a house.
• The main structure is constructed from 125 mm SIPs (Structural Insulated Panels). It is these that give the structure its great strength, rigidity and insulation. Click here for more on insulation
• The outside of the SIPs are covered in a breather membrane which protects the structure from condensation.
• Next 19 x 38 mm treated battens are fitted at 600 mm centres. These battens provide an air flow which surrounds the cladding and keeps the shell and the back of the cladding dry and extends its life to over 30 years with virtually no maintenance. (With additional timber preservative treatment, say, every 5 years the cladding and building will last indefinitely).
• Finally treated timber cladding is fitted. It can be left natural or can be painted or stained.

Diagram showing cross section through walls

Section through the 190mm-thick wall showing continuous insulation with airflow between the cladding and the shell. It is this airflow which keeps the building dry and gives it extra-long life.

*EPS = Expanded Polystyrene   **SIP = Structural Insulated Panel

(drawing not to scale)

The main structure is manufactured from 125 and 150 mm thick SIPs (Structural Insulated Panels). In essence a SIP is a sandwich where the bread is OSB3 (Oriented Strand Board) and the filling is 100 mm and 125 mm high density polystyrene. Click here for more about SIPs.

All our buildings have very high levels of insulation for all year round use with minimal heating.

DOORS

• Usually, glass panelled doors incorporating double glazed units with toughened and low ‘e’ laminated glass, krypton filled.
• Brass parliament hinges which allow doors to fold back against the frame where brass hooks hold them in place.
• Good quality door furniture and insurance rated locks.

WINDOWS

• Vent or casement windows. (others if required)
• All sashes open.
• Lockable.
• Double glazing panels 24 mm thick, 4/16/4 with toughened and low ‘e’ glass, argon filled.

ROOF

• The roof is 180 mm (7 inches) thick.
• The main structure is manufactured from SIPs although in the roof they are 150 mm thick with 125 mm (5 inches) insulation.
• The ceiling is skimmed and painted plasterboard.
• On our monopitch roofs we lay a Firestone EPDM membrane. The materials are warranted by Firestone for 20 years although the membrane has a life expectancy of more than 50 years and has been tested everywhere from Saudi Arabia to Canada.
• On our pitched roofs we tend to finish with reinforced asphalt shingles although at extra cost we can provide many other finishes, for instance concrete or clay tiles, slate and cedar shingles.

ELECTRICS

• Internal electrics only included in price.
• Ample double 13 amp sockets, flush mounted as in a house.
• Strip lighting.
• Light switch.
• 4 way - Consumer unit.

THERE ARE MANY OPTIONS at extra cost, including:

Floor:
almost any floor covering, carpet, linoleum, engineered wood etc. under floor heating

External walls:
Western Red Cedar cladding. Tile hanging. Cladding painted any colour.

Roof:
Many types of tile including cedar shingles.