{"id":2258,"date":"2016-12-20T20:39:03","date_gmt":"2016-12-20T20:39:03","guid":{"rendered":"https:\/\/insulation.org\/?page_id=2258"},"modified":"2019-12-04T21:36:46","modified_gmt":"2019-12-04T21:36:46","slug":"metal-building-resources","status":"publish","type":"page","link":"https:\/\/insulation.org\/about-insulation\/metalbuildinginsulation\/metal-building-resources\/","title":{"rendered":"Metal Building Resources"},"content":{"rendered":"
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Insulation Specification<\/h2>\n

Below is a sample architectural specification for NIA Certified Faced Insulation\u00ae<\/sup>. This specification covers the classification, composition, and the physical properties of flexible faced fiber glass insulation intended for use in walls and roofs of manufactured metal buildings.<\/p>\n

Fiber glass shall be as outlined in the North American Insulation Manufacturers Association (NAIMA 202-96\u00ae<\/sup> [Rev.2000]) specification and laminated to the NIA Certified Faced Insulation\u00ae<\/sup> specification with a certified R-value of _______ after lamination. The fiber glass shall be faced with ______. The composite of fiber glass and facing shall have surface burning characteristics not to exceed 25 flame spread and 50 smoke developed when tested in accordance with the Underwriters Laboratories 723 test method or ASTM E84 test method.<\/em><\/p>\n

This short specification is provided in text-only format so that you can easily adapt it to fit your metal building specifications.<\/p>\n<\/div>\n<\/div><\/div>

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ASHRAE 90.1-2016 Reference for Metal Building Insulation Best Practices<\/h2>\n

The following text specifies the recommendations of NIA's Metal Building Laminators Committee in regard to the fiber glass insulation referenced in ASHRAE Standard 90.1-2016.<\/h4>\n

This is intended to provide clarification relating to the fiber glass insulation referenced in ASHRAE Standard 90.1-2016 (Energy Standard for Buildings Except Low-Rise Residential Buildings)\u00a0<\/a>for metal building roofs and walls. The assembly descriptions detailed in the Appendix A reference tables and the prescriptive options shown in Tables 5.5-0 through 5.5-8 should have specified the use of NAIMA 202-compliant fiber glass, which we believe to be a significant oversight.<\/p>\n

Filled cavity systems, either Long-Tab Banded or Liner, are quickly becoming a necessity to meet current more stringent energy codes, and the use of NAIMA 202-compliant insulation in these systems is necessary to meet the prescriptive U Factors or \u201cin-place\u201d R-Values shown in the 90.1 Standard.<\/p>\n

The reason for this is quite simple. Hot Box test reports submitted to ASHRAE for these filled cavity systems were based upon the use of high density NAIMA 202-compliant material.<\/p>\n

The cavity within a metal building roof or wall system is limited by the depth of the secondary framing member (purlins or girts). Consequently\u00a0it was determined to use NAIMA 202-compliant fiber glass in a \u201cfiller\u201d application. NAIMA 202-compliant certified fiber glass has a lower K-Value than non-202-compliant material. Said differently, when not laminated, NAIMA 202-compliant fiber glass yields an advantage in performance compared to non-202-compliant fiber glass. As such, the use of non-202-compliant fiber glass (\u201cfiller\u201d)\u00a0will yield lower thermal performance than a comparable assembly insulated with NAIMA 202-compliant fiber glass.<\/p>\n

In summary, for metal building projects subject to the energy conservation requirements of ASHRAE 90.1, all layers of insulation installed need to be compliant to NAIMA Standard 202-96. Rev. 2000, whose properties are summarized in Table A9.4.6.1 of this ASHRAE Standard.<\/p>\n

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Articles and Published Resources<\/h2>\n

The published information below adds additional insight on metal buildings and metal building insulation.<\/p>\n

\u201cForecast Predicts Growth for Laminated Metal Building Insulation Market\u201d<\/a><\/p>\n

\"The Metal Building Industry: An Industry Built on Relationship\"<\/a><\/p>\n

\"Certified Faced Insulation for Metal Buildings\"<\/a><\/p>\n

\"Navigating Energy Code Compliance for Metal Buildings\"<\/a><\/p>\n

\"Air Barriers for Metal Buildings\"<\/a><\/p>\n

\"Breaking the Bridge\"<\/a><\/p>\n

\"Recommendations for Installing Fiber Glass Insulation in Metal Buildings \"<\/a><\/p>\n<\/div>\n<\/div><\/div>

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Energy Code Tools<\/h2>\n

There are a few tools that can be used to figure out what energy codes are applicable in your state.<\/p>\n