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Sandwich panel roofs and walls

Roofing

Sandwich panel roofs and walls

Fast roof and wall enclosure with stone wool or PIR sandwich panels for factories, warehouses and commercial buildings, with rooflight and gutter details.

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When do you need it?

  • A new steel frame needs enclosing
  • An old trapezoidal sheet roof leaks and is uninsulated
  • Insurers or fire regulations call for stone wool
  • A cold store is being built

Layer build-up

Sandwich panel roofs and walls
  1. 4Ridge and gutterMatching flashingsView product →
  2. 3Rooflight10–15% of roof areaView product →
  3. 2Sandwich panelStone wool coreView product →
  4. 1Steel purlinsPer structural design
Layers are listed bottom-up; details are finalised per project after survey.

Process

Step by step

  1. 01Survey and measurement

    Our technical team measures moisture on site, inspects existing layers and details, takes dimensions and photos.

  2. 02System selection and quote

    Based on the survey we prepare a written quote with the system and layer-by-layer materials and labour.

  3. 03Order and delivery

    Panels are ordered to size and delivered in installation sequence.

  4. 04Installation

    Panels are craned in and fixed with sealed screws; gaskets and cap tapes seal the laps.

  5. 05Details

    Ridges, valleys, rooflights and gutters are completed; wall corners and openings are flashed.

  6. 06Inspection and handover

    At completion we carry out a water test or visual inspection and hand over a photo report and written warranty certificate.

Products in this system

FAQ

PIR or stone wool?

PIR is lighter with higher thermal performance; stone wool is non-combustible. The choice follows fire strategy and insurer requirements.

Can panels go over the old roof?

If the structure allows, panels can be fixed over old sheets with extra purlins, avoiding strip-out.

Do rooflights leak?

Profile-matched rooflights with correct laps stay watertight.

Projects

Recent jobs

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