Use this CSI 3 part SimpleSpecs™ master specification to specify rigid (board) insulation for use in roof, wall, and floor assemblies.
Board insulation is available in many forms, the most common of which are included in this section, such as Polyisocyanurate, polystyrene, and glass fiber.
Applicable building codes may dictate which types of insulation can be used in certain occupancies. Plastic foam insulations are typically flammable and must be separated from the interior of a structure by a non-combustible material such as gypsum board, while in some occupancies plastic foam insulations may not be used. Check the applicable building code.
NFPA 285 is an assembly test that determines the fire hazard characteristics of an entire exterior assembly rather than just the insulation. All materials used in an NFPA 285 assembly must have been tested and approved for use in an NFPA rated assembly.
The R-value of any insulation that uses a blowing agent, in this case polyisocyanurate and extruded polystyrene, decreases after the insulation is manufactured. Consequently, the R-value for this type of insulation is rated by LTTR – Long Term Thermal Resistance, typically measured 5 years after manufacture.
Related SimpleSpecs™ master specifications:
The SimpleSpecs™ master specs concept
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:
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.
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.
Our desire to be in control of the project by specifying means and methods instead of including simple, enforceable statements.
Easier to Edit
SimpleSpecs™ is written as a series of Microsoft word files that include statements that affect construction costs or overall quality and are far simpler to edit than other master specification systems.
Each SimpleSpecs™ specification section is non-proprietary and includes three manufacturers that meet the specified reference standards, descriptive, or performance-based requirements. They are written to allow any listed manufacturers to provide the specified products.
Hidden Guide Text
Each SimpleSpecs™ specification section includes hidden text to inform and guide users in editing the specifications to suit project conditions.
SimpleSpecs™ sections are edited using pre-defined options that are contained in [brackets] or by selecting optional text separated by "OR" statements. Paragraph and page numbering are included as automatic codes, eliminating the need to renumber when revisions are made manually. Global changes to headers, footer, terms, font colors and phrases are easily updated using a third-party search and replace software, available through ZeroDocs.com.