Insulation and the R-value myth - SPF is superior to all other forms of insulation
Insulation is installed in a building to minimise unwanted heat loss or heat gain through the building envelope.
Types of insulation include:
- - Cellulose,
- - fiberglass,
- - rock wool,
- - polystyrene,
- - vermiculite
- - and polyurethane foam.
R-value measures the thermal resistance a specific insulation material provides.
The explanation of R-Values
R-values may be misleading because heat loss or heat gain will ultimately depend on the thermal resistance of the overall wall system, not just on the insulation.
Unfortunately, R-values are measured under laboratory conditions that are seldom found in the real world.
Oak Ridge National Laboratory research shows that the highest tested R-value for R-19 labeled fiberglass batts was R-17.4 for batts before they were installed.
From there, the test results dropped as low as R-13.7 when the batts were installed using common installation methods.
Non-solid insulations like fiberglass derive their thermal resistance from trapped dead air.
The effects of moisture and/or air movement disturbing this dead air are not taken into account in the laboratory and will further diminish the R-value of fiberglass in real world applications.
SPF insulation for the real world
The major components that will determine the overall thermal performance of the building envelope are insulation, air tightness and moisture tolerance.
Closed cell sprayed polyurethane foam (ccSPF) is the only product that will address all three of these factors with one application.
ccSPF has an R-value of R-6.5 per 25 mm, almost double other common insulation materials.
In addition, when installed at a thickness of at least 50 mm, it provides a superior air and moisture barrier.
Insulation is quick and easy, insulating your home or industrial building in no time at all.
The other distinct SPF advantages are:
- - Enhances overall building stability
- - Since SPF is seamless and monolithic; SPF sprayed into walls enhances overall building stability and reduces “rack and sheer.”
- - Deadens sound travel and noise
- - Spray Foam also reduces airborne sound making the home acoustically tighter and more private from room to room.
Please contact us, for information about SPF and the insulation benefits it has for your building