Thermano Deck on an industrial roof. Insulation thickness, board layout and deliveries

Thermano Deck has a rigid PIR core and a gas-tight multilayer facing incorporating aluminium on both sides. For a profiled steel deck, show the bearing surfaces, vapour control layer and attachment of each subsequent layer in section.

Set out the first row with the long sides perpendicular to the deck ribs. At an opening, establish where each cut piece ends and what supports it before cutting the rest of the delivery.

The manufacturer lists a CS value of at least 150 kPa for Deck boards 30–160 mm thick and at least 120 kPa for 170–200 mm. When changing from 160 to 170 mm, update the compression value in the design as well as the thickness.

At an air handling unit, the support reactions, duration of loading and load-spreading layer matter. The designer checks these for the actual roof build-up. The uninstalled board has reaction-to-fire class E. Assess the roof’s fire requirements using the documentation for the complete assembly.

For Deck boards from 30 to 90 mm, use λD = 0.023 W/(m·K). For 100–200 mm, the manufacturer gives 0.022 W/(m·K). The change in conductivity occurs at a different thickness from the change in CS.

Dividing thickness in metres by the applicable conductivity gives about 3.91 m²·K/W at 90 mm and 4.55 m²·K/W at 100 mm. These are calculated values for homogeneous layers. Take declared RD values from the board documentation and include the other layers and fixings when calculating the roof U-value.

The standard overall size is 1200 × 2400 mm. Across the width, BASIC covers 1200 mm, TOP 1185 mm and MASTER 1190 mm. Put the effective width for the selected edge beside the row direction on the layout plan.

Twenty TOP modules cover 23.70 m and twenty MASTER modules 23.80 m before edge detailing. That 100 mm difference can change the final cut at the parapet. Take off the perimeter boards using the actual edge detail.

Before covering the deck, check that it is dry and even and that the vapour control layer is continuous at penetrations and around the perimeter. Mark the tie-in to the next section while the layer is visible.

At the end of the shift, protect the transition between the completed and open areas as the work plan specifies. After rain, inspect the run-off path and the boards beside the joint before the next crew connects the waterproofing.

List parapet length, outlets and equipment bases as separate items. Where rooftop PV is planned, identify who will supply the supports, install the fixings and seal any penetrations.

Allocate packs by edge profile, thickness and delivery section in the order. Compare the first pallet label with the layout for that area. A wrong batch is easier to redirect before lifting than after boards have been laid around the equipment.