Olympia Steel Buildings Basic Insulation System (Standard Vinyl Backed) For Pre-engineered Steel Buildings
The Olympia Steel Buildings Basic Insulation System (standard vinyl backed) for pre-engineered steel buildings uses 6" of insulation on the roof and sides for an energy efficiency rating of R19. A vapor barrier is bonded to the fiberglass.
The Olympia Steel Buildings insulation vapor barrier provides an attractive interior finish to pre-engineered steel buildings while preventing the ruinous effects of moisture. When installed on the roof, the insulation is placed with the vapor barrier on the purlins so the vapor barrier faces the inside of the metal building prohibiting moisture from the roof, as in the case of rain or snow, from penetrating the insulation. When installing the insulation on the sides of metal buildings, the vapor barrier is placed on the girts, facing the inside of the building, to prevent moisture from penetrating the insulation from the sides of the building and ruining the insulation. 
Competitors Web Truss Insulation System
Web truss insulation uses only 6" or 8" of insulation, placed between the wooden purlins on the roof and the wooden girts on the sides of the building. The purlins are limited to 2x8's or 2x6's and the girts 2x6's or 2x4's. The insulation must be stapled to the wooden purlins and girts on each side to hold it in place. When this stapling method is used, the gap between the staples allows moisture to get into the insulation and fill it with water. This infiltration of water into the insulation will cause the insulation to sag, the staples to loosen, and the insulation, a water soaked mess, will fall down. Another method of holding the insulation in place is to line the inside of the roof and walls with plywood or sheetrock, which is extremely expensive.
Comments