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Gemello Revive R5-S - Over-Clad Roof System

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SIG Building Solutions

Over-clad roof system over existing single skin roof.

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Application

  • Over existing single skin roofs.
  • Suitable for use on projects across many market sectors including industrial, retail, office, health, education and leisure.

Description

Gemello Revive R5-S over-clad roof system over an existing single skin roof.

Features and benefits:

  • Offers seamless integration with both secondary steelwork and timber structures.
  • Designed with an insulation system that delivers improved thermal performance.
  • For use on refurb or refurbishment projects.
  • Improved acoustic performance.
  • Reduced operating costs through better insulation.
  • Increased building service life.
  • Building re-use rather than replacement.
  • Prioritises safety and sustainability. 
  • Available in an extensive range of finishes and colours.
  • Classified as non-fragile.
  • Minimum roof pitch 4° (5.5° design pitch) – BS 5427: Code of practice for the use of profiled sheet for roof and wall cladding on buildings. 

General information

Color

Grey

Other

Finish

Plastisol

Leather effect

Material

Steel

Mineral wool

Glass mineral wool

Glass Fibre

Shape

Trapezoid

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

25 year

12 year

30 year

Uniclass

Ss_30_40_65_50 Metal profiled sheet self-supporting roof covering systemsPrimary

CAWS

H31/10 Metal

H31/120 Metal

SKU Code

R5-S

Specification data - Metal profiled sheet self-supporting roof covering systems

Air and vapour control layer

-

Material

Manufacturer's standard.

Fasteners

Manufacturer's standard.

Sealing

Fully taped and sealed.

Guidance for specification option:

Consult manufacturer for details.

Spacers

Bar and bracket.

Guidance for specification option:

Depths to suit insulation and U-Value requirements.

Acoustic insulation

Rockwool (A1 to BS EN 13501-1:2018).
Glasswool (A1 to BS EN 13501-1:2018).

Thermal insulation

Rockwool (A1 to BS EN 13501-1:2018).
Glasswool (A1 to BS EN 13501-1:2018).

Manufacturer guidance

Systems provide U-values to suit any project down to 0.14 W/m²K.

Consult manufacturer's literature for details.

External sheets

-

Material

0.7 mm steel, TF32-5P R profile.

Guidance for specification option:

  • Designation: Class1, S220GD+Z275, AZ150 or ZA255.
  • Cover width: 1000 mm.
  • Outer sheet lengths: 1.0–10.0 m.

Primary fasteners

Screw fixed.

Secondary fixings

Stainless steel A2 (304) fixings.

Guidance for specification option:

General.

Stainless steel A4 (316) fixings.

Guidance for specification option:

Coastal.

End and side laps

Class A butyl sealant.

Gutters

-

Material

Not required.
Required.

Guidance for specification option:

Insert requirements.

  • A complete range of gutters and rainwater goods available.
  • Gutters are fabricated in a variety of materials including aluminium, pre-galvanized steel, pre-coated steel with a PVC finish, and membrane lined gutters.
  • Insulated membrane lined gutters are available for designs where the gutter forms part of the insulated building envelope.

Support

-

Manufacturer guidance

Insert requirements or omit.

Fasteners

-

Manufacturer guidance

Insert requirements or omit.

Jointing

-

Manufacturer guidance

Insert requirements or omit.

Glazing

Not required.
Glass fibre-reinforced plastics (GRP) profiled sheets.

Guidance for specification option:

Consult manufacturer for details and insert requirements.

System accessories

Not required.
Flashings.

Guidance for specification option:

Flashings can be manufactured in range of finishes and designs; consult manufacturer for details and insert requirements.

Other.

Guidance for specification option:

A wide range of accessories are manufactured and supplied; consult manufacturer for details and insert requirements.

Outer sheet coating

Plastisol PVC(P), 200 µm.

Guidance for specification option:

Reaction to fire: to BS EN 13501-1:2018, C-s3,d1.

Colorcoat HPS200 Ultra®, 200 µm.

Guidance for specification option:

Reaction to fire: BS EN 13501-1:2018, C-s2,d0.

Colorcoat Prisma®, 65 µm.

Guidance for specification option:

Reaction to fire: to BS EN 13501-1:2018, Class A1.

Manufacturer guidance

Outer cladding sheet coating.

Insert colour requirements.

Non-fragility rating

Class B (non-fragile).

Guidance for specification option:

When fully screw fixed as described in the Gemello© installation guide.

Manufacturer guidance

Outer sheet non-fragility.

ACR[M]001:2019 - Test for Non-Fragility of Large Element Roofing Assemblies [sixth edition].

Sustainability data

Country of product manufacture

United Kingdom

Material

Steel
Mineral wool
Glass mineral wool
Glass Fibre

Literature

Gemello Twin Skin System

Gemello Twin Skin System

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