"Rockwool"

Rockwool / Green Building & Sustainable Home Renovation Information & Advice

Insulation and soundproofing

How much insulation is too much in attics and walls?

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...

Walls and Roofs

The easiest way to insulate walls from the exterior in older homes

...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...

Wall assemblies - new construction

Larsen truss wall systems with double-stud construction & extra insulation for new homes & energy efficient home renovation

...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...

Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

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) ...

Concept and design

Building science for LEED v4 wall design made easy - video

...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...