Single skin sheeting
PPGI and GI profiled sheets for roofs and walls where the building does not need a thermal envelope.
Cladding and panels
The envelope decides what the building costs to run. It is worth specifying properly.
Why it matters
The frame is a one off cost. The envelope is a running one.
A single skin sheet and an insulated panel look similar on a drawing and behave nothing alike in service. One keeps the rain out; the other decides how hard your air conditioning works for years to come.
We specify the build up against the conditions the building will actually operate in, and design the roof to the client’s choice.
Systems
What we supply
EPS sandwich panels
Insulated panels for conditioned and temperature controlled buildings.
Onduline sheeting
Lightweight corrugated roofing sheets.
PVC roof sheeting
PVC sheeting for roofs.
Rockwool and glasswool insulation
Densities from 12 to 48 kg/m³, specified to the performance the space needs.
Roofing designs
Roof form and finish designed to the client’s choice.
To confirm
Envelope specification
Profiles, coatings, insulation and colours are confirmed per project. These are the choices that get made.
| Decision | What drives it |
|---|---|
| Sheet type | Single skin PPGI or GI, EPS sandwich panel, Onduline or PVC |
| Coating and colour | Corrosion exposure (coastal, industrial or inland) and the look you want |
| Insulation | Rockwool or glasswool, 12 to 48 kg/m³, to the thermal performance required |
| Roof design | Pitch, profile and finish, to the client’s choice |
| Fire performance | The rating your building or authority requires |
| Fixings | Wind uplift at your site |
Not sure which envelope you need?
Tell us what happens inside the building and the climate it sits in, and we will specify the build up.