mercor tecresa® » Tecfill® Thermal and Acoustic Insulation

TECFILL® - Thermal and Acoustic Insulation

Tecfill® is a rock wool of volcanic origin, especially suitable for mechanical intake. Its use is intended for application by blowing in dippers or by injected into enclosed fabric using adapted machines. It is particularly suited to the thick walls.
Tecfill® because it is made up of inorganic materials, it remains unaltered over time. It is imputrescible and does not cause fungal disturbances. With A1 (non-fuel) rating, in addition to its extraordinary energy efficiency, it offers fire-retardant capacity, preventing the spread of fire from one sector to another. This gives you unique properties in the market.
The Tecfill® application is a procedure of thermal insulation by input, of volcanic rock wool, of a closed fabric of roofs, walls or forgings, for premises with low or medium humidity, of new or old residential or non-residential buildings.
Insulation can be made from the inside or from the outside on walls of any thickness.
This product offers many advantages:
* Fast and easy to apply, no cuts.
* Adaptation to works in a complex form.
* Homogeneous filling, reduction of thermal bridges.
* High performance in both winter and summer.
* Open to the diffusion of water vapour, hygrothermal comfort.
* Environmentally friendly.
* Application by Tecfill® certified professionals

Laboratory: CEIS accredited by ENAC
Test No.: CAT0044/15


1. Ceramic brick.
2. Tecfill®.
3. Blowing noozle.
4. Hose.


Tecfill® application is quick and easy, the desired insulation is achieved in very little time, cleanly and without major works. A mercor tecresa®’ skilled and accredited worker will perform the installation following the steps below:
  1. Check the state of the cavity, veryfing the optimum application conditions.
  2. Setting out of the penetration holes which will be done on the support work, guaranting the optimal distribution of the material in the cavity.
  3. Tecfill® is blown dry, avoiding  material waste, stains, drips, etc.
  4. Once the cavity is filled with  Tecfill® the worker will seal the holes of the support work with the most appropriate sealant (concrete, gypsum, mastic, etc.)
The installation worker will adjust the machine in accordance with the required insulation characteristics  (thickness, density).
Tecfill® rockwool sacks are emptied in the machine’s feed hopper to be blown. The rockwool is pneumatically blown through a hose and a nozzle towards the wall to be insulated. Tecfill® is blown through the holes drilled in the facing wall. The blowing hose diameter is 50 mm.
The application nozzle has a diameter of 50 mm, therefore, the hole must be 52 mm.

Product Documents

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