Roofs
The walls of agricultural buildings may be insulated on the inside or outside of the loadbearing structure, whilst roofs may be insulated above purlins or with the insulation forming a horizontal ceiling.
Applying ROOFMATE™ RL-X insulation in the plane of the roof enables maximum use to be made of the space enclosed by the structure. Ventilation will be required between the roof covering and the insulation to prevent the build up of condensation. Where ventilation systems require flat ceilings uninterrupted by structural members the insulation boards should be installed to the underside of the joists.
ROOFMATE RL-X insulation should be fixed as follows:
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Above the purlins: ROOFMATE RL-X boards will be secured by the fixings for the cladding (Figure 61).
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Below the purlins/horizontal ceiling: for timber frames ROOFMATE RL-X boards should be nailed directly to the timber using flat headed galvanised or aluminium alloy nails (Figure 62). For steel or concrete frames, battens should be fixed to the frame (by shot-firing to steel or strapping to concrete) and the ROOFMATE RL-X boards nailed directly to the battens (Figure 63).
