Rigid / Guides

Installing foam panel insulation, which is best?
Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

...rigid insulation panels: The only rigid board insulation that is not a petroleum-based foam product shown in the main photo above is the brown one, which is mineral wool. It is a recycled product made with the stone dust from industrial blast furnaces. Alternative Mineral Wool Rigid Insulation Panels - Roxul ...

Is EPS foam eco-friendly? Exterior home insulation rigid foam panels
Insulation and soundproofing

Does plastic foam or Styrofoam insulation have a place in green building?

...rigid foam insulation, aka 'beadboard foam insulation'. this is NOT 'Styrofoam'. XPS Extruded Polystyrene rigid foam insulation - this may be Styrofoam if produced by Dow chemicals group The criteria for what ‘eco-friendly’ or ‘green’ building products are can vary by person, and it can depend on what your ...

How to Fasten Cement Board Facing to slab on grade insulation
Slab on Grade

Finishing the exterior of an insulated slab-on-grade floor

...rigid Rockwool panels meant we needed an additional solid exterior surface. Here we installed an exterior cement board , though that left the challenge of how to attach it without using metal fasteners that would lead to thermal bridging. What we decided on was plastic straps that passed through the cement board and ...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

Choosing the right insulation: the pros, cons and applications for walls, slabs & basements

...rigid foam panel insulation Cellulose rigid foam insulation is a greener choice than styrofoam UPDATE: A new environmentally-friendly rigid foam insulation board made from cellulose nanocrystals is a viable alternative to Styrofoam - according to researchers at WSU... This product has us really excited, becau...

Flexible 'solar glitter' from Mpower Technologies
Solar photovoltaic

Flexible PV 'solar glitter' panels coming soon

...rigid, relatively heavy and fragile. A new product on the market called Microsystems Enabled Photovoltaics (MEPV) from mPower Technology may change that. The cells in these pliable sheets are made from high-efficiency silicon, and if one cell is damaged or loses power, the rest will continue to operate. A more resili...

4th generation blowing agents for spray foam
Insulation and soundproofing

New HFO blowing agents for spray foam will make it over 1,000 times less harmful to the climate

...rigid shape, and those tiny bubbles of gas act as insulators. They're found in XPS rigid panels and spray polyurethane foam (SPUF) as well. What differentiates one blowing agent from another are the molecules. The class of hydrofluoroolefin (HFO) molecules contain at least one carbon-carbon double bond that makes the...

Hemp insulation products for USA & Canada rolling off the production line
Insulation and soundproofing

Hemp insulation in Canada & USA - insulating naturally is an Eco-friendly alternative

...rigid soundproofing panels; semi-rigid decorative and soundproofing panels; felts for subfloor insulation. 5.5 " batts for a standard 2x6 wall currently cost $1.90 per square foot and 3.5" batts for 2x4 stud bays cost $1.35 per square foot. "Our prices per square foot fall right between the cost of mineral wool...

Building science for LEED v4 wall design made easy
Concept and design

Building science for LEED v4 wall design made easy - video

...rigid insulation (EPS or XPS - see comparisons here) . We chose this option for a variety of reasons. Roxul has high embodied energy, but the final product is effectively inert, with characteristics that will remain unchanged with the passing of time. This is not the case with polystyrene, which over time will off-ga...

Air barriers are essential to a properly functioning wall system
Air and vapour barriers

What is an air barrier?

...Rigid: supported in both directions from wind pressure. 4. Durable: must last the life of the building. 5. Repairable: access for repair if damaged. A sampling of air barrier materials and techniques: House wrap: Also known as Water Resistive Membranes (WRBs) , brand names include Tyvek and Typar. While its i...

How to Insulate Exterior Walls from the Outside US Canada Ecohome
Walls and Roofs

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

...rigid 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 ter...

Slab on grade for a Passive Solar LEED Home insulated by Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...rigid board under the main slab and on the exterior of the slab, and high-density Type III EPS foam under the footing as Rockwool has not been tested yet for the weight of a footing and load bearing wall. Following that will be a skirt of R8 insulation extending 4 feet out from the slab just below final grade, to ensur...