Rockwool / Green Building & Sustainable Home Renovation Information & Advice

...Rockwool and is easily sourced through major building supply stores. Rigid wood fiber, while gaining traction, is often a specialty order and can be significantly more expensive due to importation costs and a smaller distribution network. United Kingdom, Australia, and New Zealand: Both mineral wool rigid insulation an...

Home insulation - how much is too much? A House can definitely be under-insulated (millions of homes throughout the United States and Canada have this very problem), but can a home have too much insulation? In short, yes it can. In reality, there is an optimal balance between the up-front cost of insulation and the lon...

...Rockwool or Roxul insulation panels attached with strapping and screws (which is in the building science video above), and what we did to break the thermal bridge was to do it in 2 layers of 4 inches of rigid Rockwool so there would not be a single screw passing through the wall assembly. It worked great in terms of en...

...Rockwool or fiberglass) or as in this particular case, dense-packed cellulose.  Larsen Trusses for Passive House construction: We recently visited John Hodges in Perth, Ontario, Canada, where he is building two homes; one for himself and his wife and, right next door, one for his daughter’s family. One house will be Pa...

...Rockwool, contains no fire retardant chemicals such brome-based HBCD (Hexabromocyclododecane, spelling test to follow), a persistent bio-accumulative chemical found in EPS and XPS that is connected to a disturbing amount of human health issues. Avoiding thermal bridges: When one section of a wall conducts heat much qui...

Polyisocyanurate (PIR), Extruded Polystyrene (XPS), Expanded Polystyrene (EPS) or Styrofoam? When building or renovating a high-performance building envelope there are really three main kinds of rigid foam panels you are going to have to choose from - Polyisocyanurate known as Polyiso (PIR), Extruded Polystyrene (XPS) ...