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The requirement for fillers comes about by the need to make thin sheet material strong enough to be used as an economic means of roofing industrial buildings. This is done by shaping the material i.e. aluminium, steel fibreglass etc. giving it a series of ribs and valleys, which offer strength and stability. As a consequence of the profiling, gaps are created between the sheet and the purlins upon which it is laid, or under any flashings at the ridges for example. If these gaps were not filled, small birds would gain access to the building, dust and dirt may blow inside and possibly most importantly, it would not be wind or watertight. Strong winds could in fact cause the sheets to loosen if fillers were not properly situated and fixed, and may make the roof unstable.

The profiling often results in a series of ribs or flutes, where SMALL FLUTE fillers are required for one side of the sheet and LARGE FLUTE fillers required for the opposite side. The diagram shows that a large flute filler would not fit on the small flute side and vice versa.

Foam fillers are supplied to suit ANY PROFILE and ALL APPLICATIONS, in both Polyethylene, EPDM faced polyethylene and EPDM, whilst FIRE STOPS are also available in non-combustible rock fibre.

ANGLE CUT FILLERS.  Sheets are often cut at an angle to allow for hip joins and gable ends where special ANGLE CUT FILLERS are required. The manufacturer will make the calculations of lengths and metres etc, if supplied with sufficient information. Usually a drawing or sketch will suffice.