The insulation shall be flexible fiber glass metal building insulation as manufactured in accordance with ASTM C 991, Type I (Unfaced) or Type II (Faced), "Standard Specification for Flexible Insulation for Pre-Engineered Metal Buildings", having an R value of ___ for the roof, and R value of ___ for the walls.

The insulation shall be faced with __(see note 1 below)__, or equal. The permeance rating shall not exceed _______ when tested in accordance with ASTM E 96 (Dessicant Method), "Standard Test Methods for Water Vapor Transmission of Materials".

The composite product shall have a fire hazard classification of 25 (maximum) flame spread index, and 50 (maximum) smoke developed index (FHC 25/50) when tested in accordance with ASTM E 84 or UL 723.

When using high R value systems, the cavity between the exterior metal sheet and the faced fiber glass insulation must be completely filled with insulation or properly ventilated.

In October 1992, President Bush signed into law the National Energy Policy Act. This mandated that by October 1994, all states adopt ASHRAE 90.1 as the minimum standard for the design of energy efficient buildings. While many states have adopted this standard, some have yet to incorporate it in their building code for metal buildings. If your state requires compliance, you should also use the following:

"U" Value Compliance:

Thermal insulation materials furnished and installed shall comply with the following "U" value requirements:

1. National Voluntary Consensus Standard 90.1 (1989), "Energy Efficient Design of New Buildings Except Low Rise Residential Buildings," of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).