ASTM C1224-15(R2020) pdf free download

ASTM C1224-15(R2020) pdf free download.Standard Specification for Reflective Insulation for Building Applications
1. Scope
1.1 This specification covers the general requirements and physical properties of reflective insulations for use in building applications. These insulation materials consist of one or more low emittance surfaces, such as metallic foil or metallic deposits, unmounted or mounted on substrates. Reflective insulations derive thermal performance from surfaces with an emittance of 0.1 or less, facing enclosed air spaces. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
5. Materials and Manufacture
5.1 Reflective insulation materials shall consist of low emittance surface(s) with, or without, substrates and adhesives required to meet the specified thermal performance and physi- cal properties. 5.2 Multiple layer reflective insulations shall be designed to attain the intended separation of layers in normal application. Such multiple layer insulation shall form an attachment flange suitable for stapling, or other means of attachment. 5.3 Dimensions—Insulation shall be furnished in dimen- sions to fit framing members, at spacings standard in the construction industry, or as specifically agreed upon between the producer and the buyer.
6. Physical Properties Requirements
6.1 Low emittance materials shall have a surface with an emittance of 0.1 or less, as determined in accordance with 9.1. 6.2 Permeance—When the reflective insulation is to serve as a vapor retarder, the permeance of the material shall not exceed one perm, as determined in accordance with 9.2. 6.2.1 When the reflective insulation is to be vapor transmit- ting the permeance of the material shall be equal to or greater than five perms, as determined in accordance with 9.2. 6.3 Surface Burning Characteristics—Building code re- quirements specify flame spread and smoke development values determined in accordance with 9.3, except as follows: (1) Maximum surface burning characteristics shall not exceed 25 flame spread index and 50 smoke development index for inside plenum applications. (2) Maximum surface burning characteristics shall not exceed 25 flame spread index and 450 smoke development index in exposed building applications. 6.4 Humidity Resistance—The laminates of the reflective insulation shall be tested in accordance with 9.4. Three specimens shall be exposed. Shield the test specimens from condensate that drips from the ceiling ofthe humidity chamber. 6.4.1 The specimens shall be evaluated for visible corrosion and delamination. For purposes of corrosion evaluation disre- gard the outer 0.25 in. 6.5 Adhesive Performance: 6.5.1 Bleeding—Adhesives, when used, shall show no sign of bleeding when tested in accordance with the test procedure in 9.5.1. Disregard bleeding at cut edges. Bleeding or delamination, covering over 2 % of the specimen area, shall be cause for rejection. 6.5.2 Pliability—Specimens tested in accordance with the test procedure in 9.5.2 shall not show cracking or delamination. 6.6 Fungi Resistance—Specimens shall not have growth greater than comparative item when tested in accordance with 9.6. Use Interpretation of Results (Paragraph 7.2) of Test Method C1338. 6.7 Thermal Resistance—Determine the thermal resistance in accordance with procedures in 9.7. The results of the procedures shall indicate the R-value of the product and the enclosed air space, in the assembly tested.