Standard Roof Truss

Standard Roof Truss
General Load Settings:
Tile Load: 0.785 kN/m²
Snow Load: 0.524 kN/m²
Ceiling Dead Load: 0.250 kN/m²
Ceiling Live Load 0.250 kN/m²
Tank Load 0.450 kN
Max Tile Batten Centres: 360 mm
General Truss Information:
Truss Centres (mm): 600
Timber Thickness (mm): 35
Timber Size Information:
Member Size Grade
TC 1-4,4-7 – 97 TR26
BC 6-10 – 72 TR26
BC 10-2 – 72 TR26
WB 3-8,5-9 – 72 TR26
WB 4-8,4-9 – 72 TR26
All truss images are for visual aid only and may not truly represent the roof truss supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your roof design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Wall System A Series 1.1

Coming soon
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Wall System Series 1.1A Series 1.1
Wall system structural thickness145mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.17 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x145mm
C16 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System B Series 1.1

Wall System Series 1.1B Series 1.1
Wall system structural thickness145mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.14 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x145mm
C16 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System C Series 1.1

Wall System Series 1.1C Series 1.1
Wall system structural thickness195mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.14 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x195mm
C24 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System C Series 1.1

Wall System Series 1.1C Series 1.1
Wall system structural thickness195mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.14 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x195mm
C24 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System G Series 1.1

Wall System Series 1.1G Series 1.1
Wall system structural thickness235mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.11 W/m2K
Timber Fraction - Structure vs InsulationTimber
12.68%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.32%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
5.55%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure47x235mm
JJI Joists
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System E Series 1.1

Wall System Series 1.1E Series 1.1
Wall system structural thickness220mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.11 W/m2K
Timber Fraction - Structure vs InsulationTimber
10.72%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
89.28%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
3.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame StructureC16 + C24
Dual Timber
Insulation Within Structure035-Wool +
50mm PUR to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Solid Timber Joists

Solid Timber Joists
All our solid timber joist floor cassettes are manufactured right here in our Elgin premises, providing a cost-effective and flexible service. Our designers use cutting-edge analysis and modelling techniques to design the connections and fittings that ensure our cassettes can integrate seamlessly into any design.
Selection of Timber Sizes:
Member Size Grade
45×145 – C16
45×195 – C24
45×220 – C24
General Joist Information:
Joist Centres (mm): 600
Timber Thickness (mm): 45
General Load Settings C16:
Ground floors: Less than 0.25kN/m2
Spans for first floor / intermediate floors of Buildings: 0.25 – 0.5kN/m2
General Load Settings C24:
Ground floors: Less than 0.25kN/m2
Spans for first floor / intermediate floors of Buildings: 0.25 – 0.5kN/m2
Permissible clear spans (mm) for domestic floor joists for timber machined on all four sides in accordance with BS EN 336. Imposed load not exceeding 1.50kN/m2. Strength class C16. Service class 1 or 2.
Permissible clear spans (mm) for domestic floor joists for timber machined on all four sides in accordance with BS EN 336. Imposed load not exceeding 1.50kN/m2. Strength class C24. Service class 1 or 2.
All joist information and images are for aid only and may not truly represent the joists supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your floor design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Attic Truss

Attic Roof Truss
General Load Settings:
Tile Load: 0.785 kN/m²
Snow Load: 0.524 kN/m²
Ceiling Dead Load: 0.250 kN/m²
Ceiling Live Load 0.250 kN/m²
Tank Load 0.450 kN
Max Tile Batten Centres: 360 mm
Attic Floor Load 0.524 kN/m²
Attic Room Height: 2350 mm
Attic Room Width: 3500 mm
General Truss Information:
Truss Centres (mm): 600
Timber Thickness (mm): 47
Timber Size Information:
Member Size Grade
TC 12-5,5-13 – 197 TR26
TC 1-12,13-9 – 197 TR26
BC 8-14 – 197 TR26
BC 14-2 – 197 TR26
CL 6-4 – 97 TR26
WL 3-10,11-7 – 97 TR26
All truss images are for visual aid only and may not truly represent the roof truss supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your roof design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Attic Truss (Posi)

Attic (Posi) Roof Truss
General Load Settings:
Tile Load: 0.785 kN/m²
Snow Load: 0.524 kN/m²
Ceiling Dead Load: 0.250 kN/m²
Ceiling Live Load 0.250 kN/m²
Tank Load 0.450 kN
Max Tile Batten Centres: 360 mm
General Truss Information:
Truss Centres (mm): 600
Timber Thickness (mm): 47
Timber Size Information:
Member Size Grade
TC 21-8,8-22 – 197 TR26
TC 3-20 – 122 TR26
TC 1-21,22-15 – 197 TR26
TC 20-13 – 122 TR26
BC 19-23 – 122 TR26
BC 23-16 – 122 TR26
WB 16-3,19-13 – 147 TR26
WB 7-17,9-18 – 72 TR26
WB 14-19,16-2 – 97 TR26
WB 2-4,14-11 – 72 TR26
BLK 0-0 – 72 TR26
WL 11-12,5-4 – 97 TR26
CL 10-6 – 97 TR26
All truss images are for visual aid only and may not truly represent the roof truss supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your roof design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Rasied Tie Truss

Rasied Tie Truss
General Load Settings:
Tile Load: 0.785 kN/m²
Snow Load: 0.524 kN/m²
Ceiling Dead Load: 0.250 kN/m²
Ceiling Live Load 0.250 kN/m²
Tank Load 0.450 kN
Max Tile Batten Centres: 360 mm
General Truss Information:
Truss Centres (mm): 600
Timber Thickness (mm): 47
Timber Size Information:
Member Size Grade
TC 1-4,4-7 222 TR26
BC 6-2 97 TR26
WB 3-8,5-8 72 TR26
WB 4-8 72 TR26
All truss images are for visual aid only and may not truly represent the roof truss supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your roof design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Solid Timber Rafters

Solid Timber Rafters
All our solid timber roof cassettes are manufactured right here in our Elgin premises, providing a cost-effective and flexible service. Our designers use cutting edge analysis and modelling techniques to design the connections and fittings that ensure our cassettes can integrate seamlessly into any design.
Selection of Timber Sizes:
Member Size Grade
45×145 – C16
45×195 – C24
45×220 – C24
General Rafter Information:
Rafter Centres (mm): 600
Timber Thickness (mm): 45
Roof cassettes are designed and engineered differently from floors and there are many areas to considers during roof cassette design. From how the eaves will work and how the roof cassettes will be supported into place. ACJ Group specialises in the closed panel and cassette construction and can design, engineer and fabricate all cassettes in house to suit custom detailed builds.
All information and images are for aid only and may not truly represent the joists supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your floor design with the supplier ensuring all materials, loadings and specifications are to your understanding.

I Joist Rafters

JJI Joist Rafters
All our JJI Joist roof cassettes are manufactured right here in our Elgin premises, providing a cost-effective and flexible service. Our designers use cutting edge analysis and modelling techniques to design the connections and fittings that ensure our cassettes can integrate seamlessly into any design.
Selection of JJI Joist Sizes
A+ – 47x145mm C24
A+ – 47x195mm C24 / B+ – 63x195mm C24 / C – 72x195mm C24 / D – 97x195mm C24
A+ – 47x220mm C24 / B+ – 63x220mm C24 / C – 72x220mm C24 / D – 97x220mm C24
A+ – 47x235mm C24 / B+ – 63x235mm C24 / C – 72x235mm C24 / D – 97x235mm C24
A+ – 47x245mm C24 / B+ – 63x245mm C24 / C – 72x245mm C24 / D – 97x245mm C24
A+ – 47x300mm C24 / B+ – 63x300mm C24 / C – 72x300mm C24 / D – 97x300mm C24
A+ – 47x350mm C24 / B+ – 63x350mm C24 / C – 72x350mm C24 / D – 97x350mm C24
A+ – 47x400mm C24 / B+ – 63x400mm C24 / C – 72x400mm C24 / D – 97x400mm C24
A+ – 47x450mm C24 / B+ – 63x450mm C24 / C – 72x450mm C24 / D – 97x450mm C24
General Rafter Information:
Rafter Centres (mm): 600
Timber Thickness (mm): 45
Roof cassettes are designed and engineered differently from floors and there are many areas to considers during roof cassette design. From how the eaves will work and how the roof cassettes will be supported into place. ACJ Group specialises in the closed panel and cassette construction and can design, engineer and fabricate all cassettes in house to suit custom detailed builds.
All information and images are for aid only and may not truly represent the joists supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your floor design with the supplier ensuring all materials, loadings and specifications are to your understand

I Joists

JJI Joists
All our JJI Joist floor cassettes are manufactured right here in our Elgin premises, providing a cost-effective and flexible service. Our designers use cutting edge analysis and modelling techniques to design the connections and fittings that ensure our cassettes can integrate seamlessly into any design.
Selection of JJI Joist Sizes
A+ – 47x145mm C24
A+ – 47x195mm C24 / B+ – 63x195mm C24 / C – 72x195mm C24 / D – 97x195mm C24
A+ – 47x220mm C24 / B+ – 63x220mm C24 / C – 72x220mm C24 / D – 97x220mm C24
A+ – 47x235mm C24 / B+ – 63x235mm C24 / C – 72x235mm C24 / D – 97x235mm C24
A+ – 47x245mm C24 / B+ – 63x245mm C24 / C – 72x245mm C24 / D – 97x245mm C24
A+ – 47x300mm C24 / B+ – 63x300mm C24 / C – 72x300mm C24 / D – 97x300mm C24
A+ – 47x350mm C24 / B+ – 63x350mm C24 / C – 72x350mm C24 / D – 97x350mm C24
A+ – 47x400mm C24 / B+ – 63x400mm C24 / C – 72x400mm C24 / D – 97x400mm C24
A+ – 47x450mm C24 / B+ – 63x450mm C24 / C – 72x450mm C24 / D – 97x450mm C24
Advantages with JJI Joists
• Is capable of spanning longer distances
• Is easier to handle
• Is easier to fix and nail
• Is less prone to splitting
• Is quicker to install
• Is extremely stable
• Reduces building maintenance
• Provides a less complex design solution
• Is simple to specify using superior software
• Has Part E compliant details available
• Is FSC/PEFC accredited
• Has very low embodied energy
c Has independently assured carbon accounting to PAS2050:2011
All joist information and images are for aid only and may not truly represent the joists supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your floor design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Posi Joists

Posi Joists
All our Posi floor cassettes are manufactured right here in our Elgin premises, providing a cost-effective and flexible service. Our designers use cutting edge analysis and modelling techniques to design the connections and fittings that ensure our cassettes can integrate seamlessly into any design.
The six different Posi-Strut web sizes when combined with two 47mm deep chords result in the following six standard joists depths:
PS8 – 202mm
PS9 – 225mm
PS10 – 253mm
PS12 – 304mm
PS14 – 373mm
PS16 – 421mm
The advantages of the Posi-JoistTM system combines the lightness of timber with the strength of the Posi-Strut steel web. Customers can span far greater distances than would be possible with alternative timber products.
The use of Posi-JoistsTM provides customers with unequalled design freedom across a wide range of applications for both floor and roof in domestic, industrial and commercial applications.
Like I-beams, customers achieve exceptional floor performance from a minimum 72mm wide fixing surface, making flooring easy, with less shrinkage, and with precision engineering this reduces return visits and remedial work.
The major benefit is that the unique open web design provides an area in which plumbers and electricians will find it easy and convenient to work. The job is completed quicker and therefore your customer will make worthwhile savings. As you can see above, this product meets modern methods of construction where more renewable and ventilation systems are fitted to new homes.
All joist information and images are for aid only and may not truly represent the joists supplied or designed by your chosen supplier. Always be sure to thoroughly discuss all aspects of your floor design with the supplier ensuring all materials, loadings and specifications are to your understanding.

Wall System F Series 1.1

Wall System Series 1.1F Series 1.1
Wall system structural thickness220mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.10 W/m2K
Timber Fraction - Structure vs InsulationTimber
10.72%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
89.28%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
3.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame StructureC16 + C24
Dual Timber
Insulation Within Structure035-Wool +
50mm PUR to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System K Series 1.1

Wall System Series 1.1K Series 1.1
Wall system structural thickness300mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.09 W/m2K
Timber Fraction - Structure vs InsulationTimber
10.95%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
89.05%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
3.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame StructureC16 + GL28
Dual Timber
Insulation Within Structure035-Wool +
60mm PUR to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System L Series 1.1

Wall System Series 1.1L Series 1.1
Wall system structural thickness300mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.08 W/m2K
Timber Fraction - Structure vs InsulationTimber
10.95%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
89.05%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
3.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame StructureC16 + GL28
Dual Timber
Insulation Within Structure035-Wool +
60mm PUR to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System H Series 1.1

Wall System Series 1.1H Series 1.1
Wall system structural thickness235mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.10 W/m2K
Timber Fraction - Structure vs InsulationTimber
12.68%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.32%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
5.55%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure47x235mm
JJI Joists
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System I Series 1.1

Wall System Series 1.1I Series 1.1
Wall system structural thickness300mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.10 W/m2K
Timber Fraction - Structure vs InsulationTimber
12.68%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.32%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
5.55%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure47x300mm
JJI Joists
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System J Series 1.1

Wall System Series 1.1J Series 1.1
Wall system structural thickness300mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.09 W/m2K
Timber Fraction - Structure vs InsulationTimber
12.68%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.32%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
5.55%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure47x300mm
JJI Joists
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System D Series 1.1

Wall System Series 1.1D Series 1.1
Wall system structural thickness195mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.12 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x195mm
C24 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System A Series 1.1

Wall System Series 1.1A Series 1.1
Wall system structural thickness145mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.17 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x145mm
C16 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board25mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System B Series 1.1

Wall System Series 1.1B Series 1.1
Wall system structural thickness145mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.14 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x145mm
C16 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.

Wall System D Series 1.1

Wall System Series 1.1D Series 1.1
Wall system structural thickness195mm
U Value W/m2K
(Block & Render Finish by others)
U-value
0.12 W/m2K
Timber Fraction - Structure vs InsulationTimber
13.60%
(Based on a 2.4m wide by 2.4m high by
structural wall thickness depth )
Insulation
87.23%
Timber cold/thermal bridge transference
(Based on a 2.4m wide by 2.4m high panel)
Bridging
12.75%
Breather MembraneReflective
Panel SheathingOSB 3
Timber Frame Structure45x195mm
C24 Timber
Insulation Within Structure035-Wool to
suit thickness
Vapour control layerReflective
Internal Insulated Board50mm PUR
Service Void / Battens38mm
Plasterboard12.5mm TE
Plain
TERMS
All wall rendering images are for visual aid only and may not truly represent the finished look of the timber frame system depending all products and materials used. Always be sure to thoroughly discuss all aspects of your wall system, ensuring all materials are to your understanding.
Due to occasional updating of building regulations, material costs, availability and ACJ Group continuous product improvement, specifications are subject to change without prior notification.
This calculation has been produced by an independent company and are based on timber frame walls designed by ACJ Group incorporating wool products and a generic polyurethane foam. The U-value is based on a range of enhanced U-values in the floors, walls, and roofs. The U-values for the floors and roofs are standardised for ease of use elements. The calculations were undertaken using software in accordance with BS EN 10211 and BR 497.Calculations based on insulated concrete ground floor by other.