Polyiso / Guides

Installing foam panel insulation, which is best?
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...

R values and insulation performance
Efficient home design

Understanding thermal performance

...polyisocyanurate and stone wool ], measurements of R-value per inch were made over a range of different temperatures more characteristic of in-service temperatures. As shown in Figure 1 below, these measurements found that the R value of both insulation types change with temperature, with the polyisocyanurate [polyiso]...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

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

...Polyisocyanurate insulation (or Polyiso) Method and form : commonly in 2x8 or 4x8 sheets with foil backing Polyisocyanurate insulation boards have some interesting quirks so be careful where you use it © Ecohome Performance: R6 - 6.5 and even higher are the claims of some producers, but independent researcher...

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

...polyiso) can act as a vapor barrier, which can be a good thing or sometimes a bad thing, so be careful! This is why insulating exterior walls can sometimes go terribly wrong when "poor" insulation products are chosen for any given application. Don't just walk into a building supply store and pick the cheapest rigid i...

The LEED Platinum infill house in Toronto
Real estate

Farnham Avenue House

...polyiso foil-faced insulation panels [with zero HCFCs] eliminates thermal bridging, and helps the walls to achieve R-35. As described earlier, natural ventilation in the summer reduces energy needs for cooling. We sourced some salvaged materials for the beauty they would bring to the project. The exterior brick comes...

Insulating crawlspaces as part of home renovation
Crawl spaces

How to insulate crawlspaces properly as part of renovating an older home

...Polyiso v EPS v Styrofoam & alternatives For more details on insulating a home see here Why building a green sustainable home is the most affordable option The best resilient design features for new home construction Find more about green home construction and reap the benefits of a free Ecohome...

Natural Building Insulation Made of Grass - Eco-friendly, Green
Insulation and soundproofing

Non-toxic natural building insulation made of grass

...Polyiso rigid insulation board s are mostly air, so sound can move through them fairly easily. Rockwool brands itself as a soundproofing insulation , which it does a fair job at, but so do Hemp, grass, even dense pack cellulose and wood fiberboards. Reduce pollution and protect indoor air quality There is a steady ...

How much is Too Much Insulation in my Attic or Walls?
Insulation and soundproofing

How much insulation is too much in attics and walls?

...Polyiso, EPS & XPS foam insulation & styrofoam Tips for successfully building affordable eco homes Resilient design features for sustainable new home construction Find more about green home construction in the EcoHome Green Building Guide pages or to learn more about the benefits of a free Ecohome Net...

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?

...Polyiso v EPS v Styrofoam & alternatives Compare the carbon footprint of wood v steel vs. concrete buildings Why building a green sustainable home is the most affordable option The best resilient design features for new home construction Find more about green home construction and reap the benef...

Spray Foam Insulation - Is it Good or Toxic & Dangerous?
Insulation and soundproofing

Is spray foam insulation a good choice for your home? Or a toxic recipe for disaster?

...Polyiso v EPS v Styrofoam & alternatives Why building a sustainable green home is the most affordable option How to dispose of construction waste responsibly Find more about green home construction and discover the benefits of a free Ecohome Network Membership here .