Presentation by Simon Walker of SIG Zinc and Copper at the 2015 #PerfectRoof seminar at The Building Centre in London 1st October 2015. More at: http://www.singleply.co.uk/live-blog-8-steps-to-the-perfectroof-ribaj-morning-seminar-2015/

1. #PerfectRoof: Specifying Hard Metals
Simon Walker, Category Manager, SIG Zinc & Copper
#PerfectRoof

2. Why specify hard metals?
 Long life span due to natural
patina formation
 Maintenance free
 Low weight between
3.85 – 7.2kg/m2
 Zinc and copper are essential and
naturally found elements
 Excellent BREEAM credentials
 Dramatic visual impact
#PerfectRoof

3. Issues to be aware of
 High capital cost
 Compatibility issues (Copper)
 Vapour control layer specification
 Hard to retro fit penetrations
 Limited design standards
 Specifiers confused by range
of market offers
 Varying product quality
 Conflicting advice from
manufacturers
#PerfectRoof

4. Establishing the client’s brief
PatinaCost
Buildability
BREEAM
Theft
Maintenance
Life
expectancy
Procurement
Compatibility
Guarantees
Aesthetics
Facade
Roofing
#PerfectRoof

5. Roofing build up
Cold roof construction
 Most common construction method
 Ventilated cavity below substrate
 Ventilated eaves and ridge required
Warm roof construction
 Thinner overall construction
 Non-ventilated details such as eaves and ridge
 Particular attention to be paid to VCL and high
humidity buildings
 Substrates include: rigid insulation, SIPS and
composite panels
#PerfectRoof

6. Traditional façade methods
#PerfectRoof
Flat lock / shingle system
 Durable, light-weight and low
maintenance construction
 Shingles can be set in various
orientations and in different geometric
shapes
 Usually built in vented façade
construction

7. Traditional façade methods
#PerfectRoof
Panel system
 Commonly used to clad soffits
 Reasonable cost
 Easy installation
 Formal and ordered appearance

8. Traditional façade methods
#PerfectRoof
Angle standing seam
 Durable, light-weight and requires
virtually no maintenance
 Multiple design possibilities
 Usually built in ventilated façade
construction

9. Engineered façades
#PerfectRoof
 Thin gauge materials reduces metal
requirement and cost per m2
 Large format panel with exceptional
flatness
 Dimensionally variable panel thickness,
width and length
 Individually demountable panels
 The system can be installed on to all
wall constructions e.g. SFS, SIPS,
Block, Brick

10. Traditional façade joint methods
#PerfectRoof
Angle seam joint
 Traditional or longitudinal joint
 Finished with a 90o instead of 180o
 Joint is more stable resulting in a straighter seam
 Metal is not stressed producing flatter trays
Transversal joint
 Flat lock joint that forms a small 5mm ‘jump’ in the face of
the trays
 Not as noticeable as the standing seam
 Formed by making a 180o fold along each end of the trays
Flat lock joint
 Formed by making a 180o fold along the perimeter of each shingle
 Hidden fixings makes this suitable for flat and curved façades
 Can accommodate different geometric shapes

11. Benefits of using zinc
#PerfectRoof
 100% recyclable
 Zinc titanium production and
use has a negligible impact on
the environment
 Excellent BREEAM credentials
 Particularly suitable for marine
environment

12. Benefits of using copper
#PerfectRoof
 Natural tint
 Subtle shades
 Easy to form
 Environmentally friendly
 Corrosion resistance

13. Benefits of using stainless steel
#PerfectRoof
 Extremely corrosion resistant
 High strength resistance
 Has a longer life expectancy of
up to 80 years
 Excellent cost versus quality
price ratio

14. Choosing your supplier
#PerfectRoof
 Range of materials and finishes
 Materials cut to length with no waste
 Choosing the right product for the project
 Correct design first time
 No upfront design fees
 Full guarantees
 Professional Indemnity
insured

15. Cut the cost of metal roofing
and cladding
#PerfectRoof
• Bespoke coils widths with
no waste
 Savings by supplying
actual materials required
 Non-standard sizes now
available cut to exact
length
 UK hard metal fabrication
service
 Precise quantities
available for small or
large projects

16. #PerfectRoof
Thank you!