EPS roof and wall insulation, specified to R-value and load.
Boards and sheets specified to the R-value and the compressive load of the build-up above, whether a terrace or a plant deck.
Roofs take the full force of the Omani sun, and walls carry the cooling load all summer. EPS boards add the insulation the envelope needs, cut to the thickness that gives the required R-value.
EPS holds its R-value over time: the cells contain air from the outset, so there is no blowing agent to diffuse out and no thermal drift to design around. A fire-retardant grade is available where the specification calls for it.
Roof & Wall Insulation
Thermal conductivity 0.030–0.038 W/mK
Maximum values at 10 °C to BS 3837, from SHD to LD grade.
No thermal drift
Air-filled cells; no blowing agent to lose over time.
Any thickness
10 to 1000 mm, sheets up to 2500 × 1270 mm.
Fire-retardant grade
Type A (extent burnt < 124 mm, BS 4735) available.
What thickness of EPS do I need for roof insulation?
It depends on the R-value in the specification and the build-up above. Send the roof section and IB confirms the thickness and grade.
Is fire-retardant EPS available?
Yes. A fire-retardant grade is available; burning characteristic is tested to BS 4735.
Does EPS lose insulation value over time?
No. EPS cells contain air from the outset, so there is no blowing agent to diffuse out and no thermal drift.
Send us your drawings.
Send the slab or wall details and IB will return a grade recommendation, a cutting schedule and a quantity take-off.
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