Bulk Insulation Materials

This is the type of insulation that most people are familiar with. The insulation material itself is usually fiberglass, mineral wool (also called rock wool) or synthetic fibre (polyester). Each product has a material R-value for a given thickness, density and temperature. These products come in two forms, either in rolls, called blankets, which must be cut to fit the length of space or in precut lengths, called batts. In a horizontal space like a roof space, blankets or batts are simply laid between the timber joists.

We supply the following bulk insulation products


Fabufill is 100% eco-friendly. It is made from recycled PET bottles and fully recyclable. It is 100% people friendly. It comes in simple and safe, easy to install rolls. It is non-allergenic, non-irritant and flexible.

Fabufill has been tested in accordance with SANS 1381 part 1. It is SABS and TIASA accredited, and has a type 1 classification.

Fabufill 100mm Fire Performance classification: B/B1/2/H only.

Fabufill Specifications

Aerolite (Think Pink)

A pink, glasswool insulation that is bonded with an inert thermo-setting resin to form a resilient, easy to handle, flexible blanket. Aerolite can be easily and inexpensively installed in either existing or new homes and buildings as ceiling insulation, or can be used as cavity fill in new constructions.

Tested in accordance with SABS 1381 part 1, SANS 10177 & SANS 428.
Fire Spread index rating: Class A1, S1 (EN 13823)
Reaction to fire: Euroclass A1 (EN 13501-01)

Aerolite 135mm Fire Performance Classification: A/A1/1 No Limitations..

Aerolite Data Sheet


A light green insulation made from 100% thermally bonded, people-friendly polyester produced from recycled PET bottles. The soft texture makes it easy to roll out and cut to size. Pleasant to touch, simple and safe to install. No loose fibres or itching. It is non-allergenic, non-irritant and resilient.

Tested in accordance with SANS 1381 part 1, SANS 428 and ASTM E84.
Isotherm 100mm Fire Performance Classification: B/B1/2/H only.
ASTM E84: Spread of flame = 0.
Smoke index = 160. Smoke Toxicity = < 1 (low toxicity).

Isotherm Specifications