Spray Foam Insulation Services Toronto (647)560-8099

Spray Foam, Batt Insulation, Vapour Barrier, Blown in Attic, Rigid 

At Royal Insulation, we have been offering our customers unparalleled Spray Foam Insulation Services since 2005. We are committed to delivering reliable information and leading the industry in spray polyurethane foam technologies. Our aim is to promote the use of spray polyurethane foam across all industries while ensuring its safety and quality through education, research, and the development of standards.

The purpose of our alliance is to provide accurate, factual information about polyurethane foams to both contractors and homeowners. The company is dedicated to environmental stewardship by creating valuable resources for professionals who work with these products daily.

We excel in our field, boasting a long-standing business with an excellent reputation. Our extensive experience in installing foam insulation allows us to apply it most effectively, ensuring your home is well-insulated. Our long history in the insulation industry means we can complete the job quickly, efficiently, and with minimal disruption.

If you have any questions about the services we offer, please don’t hesitate to contact us at any time. We’re always here to assist!

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Spray Foam Contractor Toronto 647-494-4559
Spray foam insulation Toronto
To transform an RSI Value into an R-Value, you should multiply the RSI Value by 5.678. Conversely, to change an R-Value into an RSI Value, you need to divide the R-Value by 5.678.

RSI, in the context of thermal resistance, stands for “R-value SI,” where “SI” refers to the International System of Units. The R-value measures the thermal resistance of a material or assembly of materials (like insulation in a building). It quantifies how well a material can resist heat flow. The higher the R-value, the greater the insulation’s effectiveness. The “SI” designation indicates that the R-value is measured in metric units, specifically square meter Kelvin per Watt (m²·K/W). This is in contrast to the R-value used in the United States, which is typically measured in square feet Fahrenheit hours per British thermal unit (ft²·°F·h/Btu).

In a different context, especially in finance, RSI stands for “Relative Strength Index,” which is a momentum oscillator used in technical analysis that measures the speed and change of price movements. The RSI oscillates between zero and 100 and is considered overbought when above 70 and oversold when below 30. This definition, however, does not seem to apply to your question regarding conversion between RSI Value and R-Value, which pertains to thermal resistance.

R value of spray foam insulation chart

RSI – R value

R5   – 0,88 RSI

R10 – 1,76 RSI

R12 – 2,11 RSI

R18 – 3,17 RSI

R20 – 3,52 RSI

R22 – 3,87 RSI

R24 – 4,23 RSI

R31 – 5,46 RSI

R40 – 7,04 RSI

R50 – 8,81 RSI

R60 – 10,57 RSI

R value per inch

1 Inch                  5.75 per inch                   R5.7

2 Inches              5.7R per inch                   R11.4

3 Inches              5.8R per inch                   R17.4

4 Inches              5.9R per inch                   R23.6

5 Inches              6.0R per inch                   R30

6 Inches              6.1R per inch                   R36.6

7 Inches              6.2R per inch                   R43.4

8 Inches              6.3R per inch                   R50.4

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Spray Foam Insulation Toronto (647)560-8099