Posts Tagged ‘Rock wool insulation’


What kind of insulation do you recommend?

Monday, July 31st, 2017

That depends…. Today everyone is all about green building but not everyone has the budget to go that route.

If I were building my 3,300+ square foot custom built dream home I would be more interested in saving money over the long haul in energy costs and would spend the money up front.  For that scenario I  recommend 1.5 to 2 inches of sprayed rigid foam insulation followed by blown in rock wool.  There are two main reasons that I would go this route.  First, the benefit of rigid foam is that it provides a higher R- value per inch than fiberglass or cellulose and it has the added benefit of sealing all air leaks.  Of course all this comes with a higher price.  The 1.5 inches of the foam seals the openings and then you can fill with the lower cost rock wool blown insulation blanket for a comprehensive energy saving solution. (more…)