Isolation Éco-Concept is now involved in the extraction of sawdust without demolition.

It is looking for customers to pilot the efficiency of its new sawdust extraction technology. But also, on the positive impacts of this new approach on families, economically and ecologically due to the improved energy efficiency of these old buildings without demolition. The aim is to democratize access to energy-efficiency improvements for owners of older buildings, avoiding the need to demolish them and the costs involved.

Poorly” insulated houses with sawdust.

Widely used from the beginning of the 20th century until the early 1950s, sawdust was abundant and inexpensive, and for a long time was valorized and used as insulation. A natural insulator of choice made from sawdust, found in large quantities in factories on the outskirts of towns and villages. At the time, this value chain was a principle of the circular economy par excellence, with sawdust waste recycled locally as insulation material for the construction industry. In fact, it was the most abundant, effective and affordable insulation used for decades.

But times have changed, and so have needs.

Sawdust may be a natural insulator, but its performance is poor, with an approximate thermal value of only R-1/inch. What’s more, it compacts and decomposes with time and air infiltration, leaving wall and roof spaces totally free of insulation and air infiltration. Some insurance companies now even refuse this type of clientele because of the risk of fire. Poorly insulated and sometimes dangerous, these buildings have become the Achilles heel of many homeowners.

sawdust extraction
Saw blade

A number of factors are now forcing some homeowners to re-insulate their homes. Especially when it comes to a house insulated with sawdust.

  • Disadvantageous when selling.
  • Refusal by insurers and extra premiums
  • Poor energy efficiency
  • Increased heating and air-conditioning costs.
  • Discomfort; too hot, too cold.
  • Odor, dust.

Of course, all these disadvantages are turned into advantages when we clean the walls and replace the sawdust with our Ecobill MD/® polystyrene microbeads.

  • Capital gain on the value of the house
  • Best insurances.
  • High energy efficiency
  • Lower heating and air-conditioning costs.
  • More comfortable in summer and winter.
  • Removes odors and other nuisances caused by old sawdust.

But that’s not so easy to say! Those who have already tried it know. Removing the sawdust in the walls to re-insulate is no child’s play. And with good reason, several problems are regularly encountered during removal.

  • Sawdust compacts and hardens over time, making it difficult to remove.
  • Presence of pieces of wood, paper and other objects.
  • Restricted space (4″) and clutter.
  • Sometimes walls have to be demolished because the sawdust is too compact.

That’s why Isolation Éco-concept and Inject-Styrène Technologie saw the opportunity to improve things and find solutions, always without demolition.

So, to meet this growing need for older homeowners, Isolation Éco-concept, in collaboration with Inject-Styrène Technologie, has developed a new technology for extracting sawdust from enclosed spaces without demolition, using new operating techniques that are less destructive and less wasteful. Taking into account the particularities that may be encountered and finding effective solutions to their problems. Once the old insulation has been removed and thoroughly cleaned, it can be replaced by a much higher-performance material such as recycled polystyrene microbeads, injected using the Inject-Styrene process.

Extraction of sawdust without demolition