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  2. Research & Experimentation Tax Credit - Wikipedia

    en.wikipedia.org/wiki/Research_&_Experimentation...

    The Credit For Increasing Research Activities (R&D Tax Credit) is a general business tax credit under Internal Revenue Code Section 41 for companies that incur research and development (R&D) costs in the United States.

  3. Internal Revenue Code section 162 (a) - Wikipedia

    en.wikipedia.org/wiki/Internal_Revenue_Code...

    Section 162(a) of the Internal Revenue Code (26 U.S.C. § 162(a)), is part of United States taxation law.It concerns deductions for business expenses. It is one of the most important provisions in the Code, because it is the most widely used authority for deductions. [1]

  4. ASHRAE 90.1 - Wikipedia

    en.wikipedia.org/wiki/ASHRAE_90.1

    ANSI/ASHRAE/IES Standard 90.1: Energy Standard for Buildings Except Low-Rise Residential Buildings is an American National Standards Institute (ANSI) standard published by ASHRAE and jointly sponsored by the Illuminating Engineering Society (IES) that provides minimum requirements for energy efficient designs for buildings except for low-rise residential buildings (i.e. single-family homes ...

  5. Building insulation - Wikipedia

    en.wikipedia.org/wiki/Building_insulation

    And the standard has some mandatory thermal insulation requirements. [13] All thermal insulation requirements in ASHRAE 90.1 are divided by the climate zone, it means that the amount of insulation needed for a building is determined by which climate zone the building locates. The thermal insulation requirements are shown as R-value and ...

  6. R-value (insulation) - Wikipedia

    en.wikipedia.org/wiki/R-value_(insulation)

    Installed faced fiberglass batt insulation with its R-value visible (R-21) [1]. The R-value is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3]

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