A construction board includes a foam body having first and second planar surfaces, said foam body including a polyisocyanurate foam matrix defining a plurality of closed cells, said closed cells being at least substantially devoid of hydrocarbon blowing agents, and said foam body being characterized by a density, pursuant to ASTM C303, of at least 2.5 lbs/ft.sup.3; and a facer disposed on a planar surface of said foam body, said facer including a glass substrate having an internal planar surface proximate to said foam body and an external planar surface opposite said foam body, a first coating disposed on said external surface, and a second coating disposed on or proximate to said internal surface, where said first coating disposed on said external surface includes an inert filler, and where said second coating disposed on or proximate to said internal surface includes intumescent material.

A construction board includes a foam body having first and second planar surfaces, said foam body including a polyisocyanurate foam matrix defining a plurality of closed cells, said closed cells being at least substantially devoid of hydrocarbon blowing agents, and said foam body being characterized by a density, pursuant to ASTM C303, of at least 2.5 lbs/ft.sup.3; and a facer disposed on a planar surface of said foam body, said facer including a glass substrate having an internal planar surface proximate to said foam body and an external planar surface opposite said foam body, a first coating disposed on said external surface, and a second coating disposed on or proximate to said internal surface, where said first coating disposed on said external surface includes an inert filler, and where said second coating disposed on or proximate to said internal surface includes intumescent material.

A manner by which to form a thermal barrier upon a surface, utilizes a pneumatic blower to form a layer of thermal insulation material and a layer of radiant barrier material. The pneumatic blower is first charged with the thermal insulation material, and the thermal insulation material is metered upon the surface. Then, the pneumatic blower is charged with the radiant barrier material, and the radiant barrier material is metered upon the thermal insulation material.

According to one embodiment, a halogen free roof system is described. The roof system includes a structural deck that is positioned above joists or other support members. Polyisocyanurate foam insulation is positioned atop the structural deck. The polyisocyanurate foam insulation has an isocyanate index greater than 200 and includes a polyisocyanurate core having a halogen free fire retardant. A water proof membrane is positioned atop the polyisocyanurate foam insulation. The polyisocyanurate core is able to form a sufficiently stable char when exposed to flame conditions such that the polyisocyanurate core is able to pass the ASTM E-84 test.

According to one embodiment, a halogen free roof system is described. The roof system includes a structural deck that is positioned above joists or other support members. Polyisocyanurate foam insulation is positioned atop the structural deck. The polyisocyanurate foam insulation has an isocyanate index greater than 200 and includes a polyisocyanurate core having a halogen free fire retardant. A water proof membrane is positioned atop the polyisocyanurate foam insulation. The polyisocyanurate core is able to form a sufficiently stable char when exposed to flame conditions such that the polyisocyanurate core is able to pass the ASTM E-84 test.

A pre-engineered metal building configured to reduce air leakage through the shell of the building by providing an insulation system for fully sealing an enclosed space within the structural frame of the building. The insulation system includes a vapor barrier that defines the enclosed space, at least one insulation layer, and a continuous air barrier. Roof sheeting and side wall facing are attachable to the structural frame to form a shell about the building, and at least a portion of the insulation system is positioned between the shell and the structural frame.

This invention provides fall protection systems comprising a suspension fabric, supported by a grid-work of longitudinal and lateral bands, in metal building construction. The fall protection system uses the combination of relatively softer banding, a safety band spaced a particular distance from each rafter, and safety clips to attach the safety bands to the intermediate purlins, thus to distribute the force of impact of a load, falling close to a rafter, to better absorb and dissipate the force of the impact, including distributing the impact of the falling load over a greater area of the roof structure. The invention further provides methods of making elements of such systems, methods of installing elements of such systems, and buildings embodying such systems.

An insulating system for retrofitting the roof and/or walls of a building. The retrofit system includes a first layer of insulating material extending transverse to the purlins, girts and chords and atop the existing roof or wall structure as well as a plurality of longitudinally extending bridge members each with an upper and a lower surface. The system also includes a plurality of orthogonally extending spacer members that compresses the first layer of insulating material proximate to the spacer members and allowing an otherwise uncompressed first insulation layer to span between the spacer members. The system further includes a second layer of insulation extending across the upper surface of the bridge members wherein a plurality of panel clips each with a panel clip tab are disposed atop the second layer of insulation and are fastened to the bridge member and the clip tabs engage with the lateral edges of the roof or wall panels in the formation of a water resistant seam.

According to one embodiment, a polyisocyanurate foam board is described. The foam board includes a polyisocyanurate core that is produced from: an isocyanate, a polyol, and a phosphorous containing non-halogenated fire retardant. The foam board also includes a facer material that is applied to at least one surface of the polyisocyanurate core. The polyisocyanurate core has an isocyanate index greater than about 200 and is able to forms a sufficiently stable char when exposed to flame conditions to enable the polyisocyanurate core to pass the ASTM E-84 test. The foam board has an initial R-value of at least 6.40 and exhibits an ASTM E1354-11b test performance that is equivalent with or better than a similar foam board having a halogenated fire retardant, such as tris(2-chloroisopropyl)phosphate (TCPP).

Among other things, there is shown embodiments of an enclosure such as a portable building with features focusing on overall improvement in energy usage. Wall, roof and floor configurations are disclosed that provide significant energy savings. Methods are also disclosed for preparing such features and/or refitting existing portable buildings for such energy savings.