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Ashgrid Duotherm Roofing System
Verified by manufacturer 11 days ago
Profiled metal sheet roofing and support system.
Application
- Built-up roof systems (minimum roof pitch 4 degrees).
- Asbestos encapsulation.
- Pitched roofing.
- Sound absorption and acoustic management.
- Refurbishment
Description
The AshGrid Duotherm system combines the AshGrid support system with high quality exterior roofing sheeting and all the required fixings and accessories.
Ash & Lacy offers a standard 32/1000 profile top sheet with both 32/1000 & 19/1000 liners which is produced in-house.
A vast range of specification requirements can be achieved using AshGrid Duotherm systems, including aesthetics, U-values, acoustics, fire resistance and vapour control.
Features and benefits:
- Sheet length capability of 1.2 m to 11 m.
- 0.7 mm walkable liner and 0.4 mm options.
- Lightweight building envelope construction.
- Class 1 and Class 3 rooflights available ex-stock in standard lengths.
- Liner testing based on ACR(M)001:2014 – Test for non-fragility of large element roofing assemblies.
General information
Color | Black Blue Brown Copper Cream |
Finish | Coated |
Material | Steel |
Shape | Trapezoid |
Length | 11000 mm |
Width | 1000 mm |
Warranty description | 25 year |
Uniclass | |
CAWS | H31/10 Metal H31/120 Metal profiled sheet self-supporting cladding/ roof covering |
Specification data - Metal profiled sheet self-supporting roof covering systems
Classification data | |
Liner sheets | |
Material | AL 32/ 1000 0.7 mm steel profile. Guidance for specification option: Bright white in colour. |
Primary fasteners | Ashfix - bi-metal stainless steel fixings. |
Air and vapour control layer | |
Fasteners | Ashfix - bi-metal stainless steel fixings. |
Sealing | Ashfix - sealants and butyl. |
Spacers | Ashgrid bar and bracket system. Guidance for specification option: Bar: The AG40 bar is cold-rolled from 1.2 mm thick, high yield galvanised steel S450GD + Z275NA-C. Coil to EN 10147: 2000. Bars are supplied in 1000, 2000 or 3000 mm lengths and incorporate the Safe- Loc™ interlocking spigot end which prevents the bars from unintentionally separating ensuring a stable and secure system. Bracket: The ribbed reinforced Ashgrid AB40 brackets are manufactured from 1.6mm thick galvanised steel to S450GD+ Z275 BS EN 10142 and supplied with a 3 mm thick EPDM base thermal insulator pad. Bracket Heights: AB40 120–250 mm at 10 mm increments; ABV 240–400 mm at 20mm increments. Consult manufacturer for more details and insert requirements. |
Acoustic insulation | Ash & Lacy - glass wool insulation. |
Thermal insulation | Ash & Lacy - glass wool insulation. |
External sheets | |
Material | AL 32/ 1000 0.7 mm steel profile. Guidance for specification option: Colour coated. |
Primary fasteners | Ashfix - bi-metal stainless steel fixings. |
Secondary fixings | Ashfix - bi-metal stainless steel fixings. |
End and side laps | Ashfix - sealants and butyl. |
Glazing | None. Ash & Lacy - glass reinforced plastic (GRP) rooflights. Guidance for specification option: Consult manufacturer for more details and insert requirements. Manufacturer guidanceAvailable ex-stock in standard lengths. |
System accessories | None. Profile fillers. Flashings. |
Finish | Plastisol coated steel. HPS200 steel. Prisma steel. Enamel coated steel. |
Coating | Side one (outer): smooth finish, bright white liner. Side two (inner): light grey backing coat. Manufacturer guidanceLining sheet finish. |
Finish | Side one (outer): plastisol, 200 µm. Side two (inner): primer, 5–7 µm. |
Thermal performance | U-value: 0.11 W/m²·K (at maximum bracket depth). |
Fire performance | To EN 13501-5, Broof(t4). |
Acoustic performance | Rw (C; Ctr) = 49 (–2; –8) dB (250 mm bracket/ 260 mm insulation). |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Steel |
BIM objects
This BIM object has been authored to meet the requirements of the
Find out more about the
| Platform | Compatible | Version |
|---|---|---|
 Revit | - | 1 |
 IFC | - | 1 |
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