Vaulted Roof Detail

Trusses and Joists from MBC

Vaulted Roof 

The Cut or Vaulted Roof is an engineered system that provides open living space directly below the roof rafters as there are no horizontal ceiling joists. The MBC cut / vaulted roof rafters utilise open metal web posi joists set at a predetermined angle or pitch to achieve the cut / vaulted roof structure. The open metal web posi joist sees parallel timber flanges that are plated together with an engineered steel web component. The steel webs are plated in a ‘V’ formation, providing a lightweight structural roof joist that can span greater distances in comparison to a standard solid joists. Insulation is fitted by MBC running up the slope of the cut roof joist.

Click image to expand

Vaulted Roof  0.14 W/m2K U-Value

All items supplied and fitted by MBC

  • 25mm x 50mm Counter Batten
  • Roof Membrane
  • 325mm Rafter
  • 325mm Cellulose Insulation fitted to sloped portion of engineered cut rafter
  • VCL / Airtight Membrane to achieve below 3.0 AC/HR or better
  • 25mm Service Cavity Batten

Click image to expand

Vaulted Roof 0.10 W/m2K U-Value

All items supplied and fitted by MBC

  • 25mm x 50mm Counter Batten
  • Roof Membrane
  • 400mm Rafter
  • 400mm Cellulose fitted to sloped portion of engineered cut rafter
  • VCL / Airtight Membrane to achieve below 3.0 AC/HR or better
  • 25mm Service Cavity Batten

Discuss your project with us

MBC specialise in the production of Timber Frame Passive Houses and High Thermal Efficiency Timber Frame Houses throughout the UK, for people looking to benefit from huge energy savings and reduce their heating demands by up to 90%.

Passive Builds

Precisely engineered Passive solutions from MBC Timber Frame requiring 90% less energy for space heating and cooling.

Near Passive Builds

MBC Timber Frame’s “optional levels of insulation” applied to a 140mm stud frame. 3 great options delivery differing U-Values.

Groundworks

The MBC Passive Foundation system, suitable for both Passive and Standard timber frame projects.

Truss and Joists

Metal web Joists and Roof Trusses available on a supply only basis for traditional build projects.

A super insulated, timber frame house, providing exceptional energy efficiency

Designed and engineered in accordance with current building regulations

Manufactured in a controlled factory environment, ensuring superior quality craftsmanship

An affordable, competitively priced building option

Erected on site at an unparalleled rate when compared to conventional block construction

An environmentally conscious and forward thinking sustainable approach