07 21 29 Sprayed Insulation

07 21 29 Sprayed Insulation

Specification Details




8.5" x 11"


Word Doc

Usage Limit

Unlimited Projects


07 21 29

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Sprayed Insulation

Use this CSI 3 part SimpleSpecs™ master specification to specify sprayed cellulose or glass fiber insulation for use in roof, wall, and floor assemblies.


Insulation, composed of either cellulose or glass fibers, is applied using a pneumatic gun This insulation can be applied to roof, ceiling, wall, or floor structures. It can be applied to the depth of framing members in a closed assembly, or to a thickness that provides the required thermal resistance in an open assembly.


While cellulose by itself is flammable, as insulation it is treated with fire retardants to achieve a fire hazard classification rating.


Related Associations:

Cellulose Insulation Manufacturers Association

North American Insulation Manufacturers Association (NAIMA) 


Related SimpleSpecs™ master specifications:

07 21 15 – Batt Insulation

07 21 19 – Foam-in-Place Insulation

07 21 23 – Loose Fill Insulation

07 21 26 – Blown Insulation


sprayed insulation cellulose


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Adding More Words Does Not Make Specifications More Enforceable.    
Design professionals are accustomed to seeing lengthy project specifications, so why is SimpleSpecs™ so short?
Specifications have grown evermore wordy over the years for several reasons:
  1. The mistaken belief that specifications must be lengthy and legal-sounding to be enforceable.  In fact, quite the opposite is true.  Having shorter, easily understood specifications makes us less likely to have problems in the field.
  2. A belief that having lots of words protects us from a Contactor making mistakes.  There is no way to include enough statements to protect yourself from a bad contractor, regardless of the length of your specification.
  3. Our desire to be in control of the project by specifying means and methods instead of including simple, enforceable statements.
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