The award winning and patented Mantle Building System (MBS) is a hybrid of Stressed Skin Panels and regular Structural Insulated Panels (SIPs) systems. The System is used for external, internal and party walls, roofs, cellars and retaining walls. It is:
Frameless: There is no need for vertical down-stands for normal designs. Apertures and Service penetrations can be inserted anywhere in a panel, even at a join and after the initial build completion, if required. This increases the design scope.
Load-bearing: Loads are carried throughout the entire structure. With no point loads, lintels are usually not needed.
Composite technology: The composite nature of the system enables structures which are light in weight, yet exceptionally strong, durable and stable.
External walls and roof | U Value: 0.10 or better | R Value Metric: 10 | R Value Imperial: 57 |
Internal walls | U Value: 0.17 | R Value Metric: 6 | R Value Imperial: 34 |
Thermal Bridging | NIL | The System incorporates floors within the thermal shell. | |
Decrement Value | 7 - 8 |
Default psi W/mK | MBS psi W/mK | |
Corner | 0.18 | 0.028 |
Inverted Corner | 0.00 | -0.037 |
Sill | 0.10 | 0.019 |
Jamb | 0.10 | 0.029 |
Aperture Surround (=Lintel) | 1.00 | 0.028 |
Intermediate floor | 0.14 | 0.054 |
Flat roof | 0.16 | 0.035 |
Pitched roof | 0.12 | 0.079 |
Party wall roof | 0.48 | 0.038 |
Ground Floor Soleplate | 0.16 | 0.051 |
MBS psi W/mK | |
Corner | -0.0517 |
Inverted Corner | 0.0180 |
Flat Roof | -0.0274 |
Pitched Roof | 0.0161 |
Party walls | From 60dB | |
Internal walls | From 50dB | School Music Room Standard |
Air permeability | About 1m3/m2 @ 50pa | |||
Energy Requirements | Reduced by up to 90% | |||
Installation Speed | 185 sq m or more wall run per 8 hours shift | Operation on a 24/7 basis. No need to ‘dry in’. Project phases can run concurrently. | ||
Light Weight | 1/15th the weight of traditional build. 1/10th the weight of timber build with leaf of brick | Reduced foundation costs: less excavation, cartaway, steel and concrete. Vertical extensions with existing structural support engineering. | ||
Embedded Carbon | Less than 30% of structural timber and concrete. 12% of brick. 0.7% of steel. | Green Guide A+ NIL GWP. NIL ODP. | ||
Appearance | Any external finish, including directly applied render, brick, brick slips, timber etc. | Total render-to wallpaper wall thickness of about 275mm. Approx. 10% extra accommodation space per footprint. No need to batten out or wrap/clad with insulated render. Most designs, storey heights and external finishes undertaken. | ||
Strength | At least 4 times stronger than engineered timber. Same compression strength as brick. | 14m clear span floors (domestic loading 2kN+2kN). |
Racking tests to BS-EN 594 Basic Racking Resistance: | 6.51kN/m using steel angle brackets 5.25kN/m with treated timber sole plate |
Floor Panel Bending Tests to BS-EN 380 | Moment capacity: 5.68kNm long-term duration Stiffness capacity EI :125x109 Nmm2 |
Ring Beam Bending to BS-EN 380 | Bending moment: 6.3 x 106 Nmm Bending stiffness: 323 x 109 Nmm2 |
Floor Panel Creep Tests to BS-EN 789 | 1.5mm at Total Load of 2kN/m (l/360 = 3.056mm) |
Concentric Vertical Load | 43kN per metre run, long term duration |
Eccentric Vertical Load Tests to BS-EN 380 | 20kN per metre run, long term duration |
Ring beam Vertical Load | 80kN per metre run, long term duration |
N.B. Design values above are generic for indicative use prior to detailed structural engineering assessment and calculations for Domestic Dwellings up to three and-a-half storeys
Racking tests to BS-EN 594 Basic Racking Resistance: | 6.51kN/m using steel angle brackets 5.6kN/m with timber sole plate |
Floor Panel Bending Tests to BS-EN 380 | Moment capacity: 5.68kNm long-term duration Stiffness capacity EI :125x109 Nmm2 |
Ring Beam Bending to BS-EN 380 | Bending moment: 7.12 x 106 Nmm Bending stiffness: 323 x 109 Nmm2 |
Floor Panel Creep Tests to BS-EN 789 | 1.5mm at Total Load of 2kN/m (l/360 = 3.056mm) |
Concentric Vertical Load | 70kN per metre run, long term duration |
Eccentric Vertical Load Tests to BS-EN 380 | 30kN per metre run, long term duration |
Ring beam Vertical Load | 80kN per metre run, long term duration |
N.B. These figures have been drawn from the results of comprehensive destructive testing conducted by BRE. A structural engineer familiar with the MBS may design higher and/or more complex buildings within these extended parameters only in particular instances.
Mantle Panel Limited
Company No. 4255420 | VAT No. 908 9374 85 | Registered Address 21, Lodge Lane, Grays, Essex, RM17 5RY, England.