LogCabinMobileHomes-65x22ftWales

LogCabinMobileHomePlans-Wales1

SPECIFICATION

 

FRAME MATERIALS

 

  • Structural timber to be Scandinavian softwood from sustainable sources graded to comply with our consulting engineers requirements.

 

  • Timber treated with preservative in accordance with BS 5268 Part 5 1976 to comply with current Building Regulation requirements.

 

  • Sheathing to be 9mm thick OSB (orientated strand board).

 

  • Structural fixings to be rust proofed.

 

  • All timber and wood based products on this contract will be FSC/PEFC certified.

 

EXTERNAL WALLS

 

  • Manufactured in panels 2400mm nom high 50 x 150mm finished (38 x 140mm stud at 600mm max centres clad with 9mm OSB sheathing).

 

  • Breather membrane to BS4016 1966 pre-fixed to panels at works with nylon tape to indicate stud positions. The breather membrane will be extended at the sides and bottom of panels to form sufficient laps

 

  • Apertures in panels have lintels and cripple studs as specified by our engineer.

 

INTERNAL WALLS

 

  • Manufactured as panels 2400mm nom high 38 x 89mm stud at 600mm max centres with restraining noggins as required.  Apertures formed as required with all necessary lintels and cripple studs incorporated in panels.

 

  • When walls occur along the central axis of the unit they will be manufactured No.2 x 38x69mm studs walls joined together allowing for separation.

 

PLASTERBOARD SUPPORTS AND ADDITIONAL STUDS

 

  • Additional noggins or studs pre-fixed in panels to provide support for plasterboard at all junctions.

 

  • All necessary additional support studs (below trimmers, beams etc) pre-fixed in panels and marked for precise location on site.

 

GABLE PANELS

 

  • Manufactured as external or internal walls to match roof profile.

 

CHASSIS AND FLOOR

 

  • NORMAL DOMESTIC LOADING

 

  • The floor will be constructed using a primary chassis (to each half of the structure) comprising Glulam beams that will be pre-drilled for connection on site.

 

  • The secondary floor construction will be 18mm OSB chipboard supported by 50 x 150 joists at 600mm max. centres.

 

  • Insulation in the floor zone will be provided by 100mm Kingspan (or similar) insulation with reflective foil held in place by 25x40mm battens.

 

ROOF COMPONENTS 

 

  • The roof construction will comprise 65x225mm T&G solid timber structural decking supported by a composite glulam ridge beam. This supports a 1000g polythene vapor barrier secured by 25x50mm battens at 600mm centres with Super Quilt 14 reflective foil insulation stretched tightly and secured by a further layer of 25mm battens supporting 11mm OSB deck (ready for felt and batten, excluded).

 

  • 32 x 200 PSE unpainted softwood fascia

 

  • 32 x 150 unpainted softwood bargeboard

 

FIXINGS AND SUNDRY MATERIALS

 

  • All necessary nails, bolts, connectors and fixings provided.

 

  • PVA adhesive provided for tongues on chipboard floors.

 

INSULATION

 

  • The roof will be insulated with SuperQuilt 14 reflective foil (as above).

 

  • The floors will be insulated with 75mm Kingspan insulation (as above).

 

  • The external wall insulation, 140mm thick fiberglass, is excluded.

 

INTERNAL LININGS

 

  • No internal linings have been included

 

EXTERNAL CLADDING

  • The building will be clad externally with planed 25mm thick Siberian Larch board on board at width of 125 and 120mm fixed to 25mm battens at 800mm centres (un-finished).

 

FLOOR FINISH

 

  • No floor finishes included

 

DRAWINGS AND ENGINEERING

 

  • 3 full sets of drawings; floor plan, four side elevations and profile.

 

  • Full engineering calculations provided by a 3rd party structural engineer demonstrating (a:) the structure can be split in two stand alone divisible sections (b:) the structure can be lifted with crane and cradle as a whole and also in two separate halves.

 

SCOPE OF WORKS

Delivery and Erection of the Structural Shell including internal studs and vaulted warm roof but excluding felting and tiling.