GWP / Guides

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

...GWP of HFC blowing agents was as high as 1,430, the GWP of the new HFO blowing agents is 1. You don't need to be a mathematician to know that's a pretty impressive improvement, and unlike its predecessors it doesn't solve one planetary emergency by exacerbating another. Increased cost, but increased performance: Ac...

Natural gas fireplace
Heating with gas and oil

Heating with natural gas

...GWP) of Methane is a cause for concern. One not so promising source is from fracking, which is a process for extracting natural gas from shale rock. It involves pumping water and chemicals into shale rock at very high pressure causing the release of methane gas. While this was at first seen as a relatively harmless...

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

Rigid insulation panels: which ones to use for different applications

...GWP) that is 1430 times worse than carbon, this really does demonstrate how important it is to choose rigid foam insulation boards very carefuly to reduce their environmental impact. All XPS panels are not equal! EPS - Expanded Polystyrene Foam Insulation Boards: Rated at R4 per inch; EPS foam insulation boards are...

MDF Formaldehyde Free Alternatives - Made from Rice Stalks
Healthy indoor air quality

The formaldehyde-free MDF non-toxic alternative made of natural rice-stalks

...GWP). If fields aren’t cleared by flooding, they are often burned, resulting in the release of 13 tons of carbon dioxide (CO2) per hectare, and air pollution in the form of fine particles, carbon monoxide, dust and sulfur. A healthy alternative to MDF boards Fun fact about rice - and the reason why rice MDF is a ...

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?

...GWP, is a measure of how much heat-trapping potential a substance has, compared to carbon. A GWP of 1430 means that a given unit of a substance is that much worse than carbon as a heat trapping gas when released into the atmosphere. The new HFO (hydrofluoroolefin) blowing agents have a GWP of 1, which basically means...

Exterior compresssor heat pump water heater
Plumbing and water heaters

Heat pump water heater with exterior compressor

...GWP (global warming potential) Two sizes of water storage tank to better fit the needs of consumers High delivered water temperature (65° C) What we don't like about the SANCO2: That's a pretty easy answer - the price. The Vancouver distributor sells the outdoor unit for $3,227, a 43 gallon tank for $2,253 ...

Natural Gas is being phased out - why & when?
Heating with gas and oil

Why Natural Gas is Being Phased Out of New Home Construction (and When?)

...GWP), which is a calculation that allows experts to compare the effects of any gas emissions to carbon dioxide. According to the Intergovernmental Panel on Climate Change, in recent decades, methane has warmed the planet by as much 86 times more than CO2. The less talked about environmental impacts of natural gas com...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

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

...GWP) 7 times greater than carbon dioxide. This is significantly lower than other types of foam, so we recommend it as the preferred choice of foam whenever foam insulation is the best option possible for the application. Excellent as a rigid foam insulation board for below grade applications and insulated slab formin...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...GWP). For this reason, we like to explore less harmful alternatives whenever possible - though *January 2018 update: new blowing agents for spray foam virtually eliminate green house gases, read more here. Probably the most worrisome problem (as reported by a SPUF installer) is that there is a great temptation for in...

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

...GWP (global warming potential), made with recycled materials, made with natural materials, which ones are best for sound proofing, or for reducing off-gassing to protect indoor air quality. See our page on choosing the right building insulation for the right application Once you determine the approximate amount of ...

How to organize food in your fridge to make it last longer
Lifestyle and environment

Fridge organization - how to optimize fridges to reduce food waste (and why it matters)

...GWP), which is a calculation that allows experts to compare the effects of any gas emissions to carbon dioxide. According to the Intergovernmental Panel on Climate Change, in recent decades, methane has warmed the planet by as much 86 times more than CO2 . Topsoil, water, labor and energy is wasted in huge quantities...