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Best Practices With Insulation Installation
It isn't often that I am able to write something about best practices with insulation installation.  So here it is!
This is a new house, abandoned mid construction, then purchased and construction begun anew.  The buyers are saavy enough to act as their own GCs.  That is not recommended for most people.  They seem to have a handle on it. 
As GC, selecting the proper subcontractors is crucial to the process.
It could be said that the best (new) form of insulation is sprayed foam.  It is, however, very, very expensive.  Even when it is used minimally to seal air flow through places like rim joists, it still increases costs dramatically.
There are many advantages to using sprayed (blown-in) cellulose insulation.  It is a recycled product, is permanent, has no gaps or holes, and retains an R-value of about 3.3 per inch for the long run.  It is nothing more than chew-up newspaper and can be treated with boric acid so bugs will not eat it.  Also, its treated to make it non-flammable.
But look at this!  When a stick'em is added to the cellulose, it can be sprayed into vertical wall cavities, and will not sink over time.  Gravity still ... more

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