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Systems & formats

Insulation systems — how the material actually arrives on site

The same stone wool performs identically in a wired mat, a pipe section or a removable cover — what differs is fit, installation speed, and whether it SURVIVES maintenance. That last property decides more lifetime heat loss than any λ value.

Removable insulation covers (jackets)
Engineered fabric covers — insulation core (needle mat / silica mat / stone wool) sewn inside a coated-fabric skin, closed with sn…
Wired mats & lagging mattresses
Stone-wool wired mat (galvanized or stainless mesh stitched both sides) wrapped on site and clad with metal — the classic boiler a…
Pre-formed pipe sections
Half-shell sections (stone wool, glass wool, calcium silicate, PIR for cold) sized to standard pipe ODs, snapped on and banded — f…
Boards & slabs
Rigid boards (stone wool, calcium silicate, cellular glass, microporous, PIR) for flat and large-radius surfaces.…
Insulation bags & pillows
Loose-filled fabric pillows stuffed with fibre — the budget cousin of engineered covers: no pattern, just a bag wired around the c…
Cold & cryogenic systems
Below-ambient insulation is a different sport: the enemy is water vapour driving INTO the cold surface. Closed-cell materials (cel…
FAQ

Questions on this topic

What insulation system should I use on valves and flanges?
Removable covers — engineered fabric covers with an insulation core, made to the component's geometry, closed with snap buttons. Fixed lagging on serviced components gets destroyed at the first maintenance; ASTM C1695 governs the engineered category.
What is the cheapest way to insulate long pipe runs?
Pre-formed pipe sections (glass or stone wool) on straight runs, wired mat + metal cladding on large diameters. Removable covers then handle the valves, flanges and strainers the sections dead-end at.
Are insulation bags the same as removable covers?
No. Bags are loose-filled pillows wired on — approximate fit, no engineered closure, usually single-use. Engineered covers are patterned to the component, snap-closed, and survive repeated removal. For anything opened more than once the cover wins on lifecycle cost.