open-cell spray foam is similar to closed-cell in nature. It just has a lesser R-value. While most closed-cell spray foams will be above 6.0 per inch, open-cell is much lower at 3.6 to 3.8 per ...

The amount of foam it takes to insulate a 2×4 ... achieve R-values of up to R-66 per inch. However, these products are rarely used in residential projects. Conversely, closed-cell spray foam ...

Closed cell spray foam is considered to have the best R-value of any insulation type, with an R-value of around 6.5 per inch.” — HD Horne Sprayfoam & Insulation VICTORIA, BRITISH COLUMBIA ...

In particularly cold climates, you might go up to R-60. Let's say the insulation you've selected has an R-value of three per inch and ... square foot and closed-cell spray foam is about $1.25 ...

Keep in mind that the cost of spray foam (especially closed-cell spray foam ... spray foam in 1-inch layers, the appropriate thickness can vary based on the desired R-value and the type of ...

JM Corbond IV is a fourth-generation, closed-cell spray foam made with a hydrofluoro-olefin ... but also performs competitively in terms of R-value, spray yield and cooling requirements ...