Polyisocyanurate


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Polyisocyanurate

Type of rigid foam insulation used in above-grade walls and roofs, typically with a foil facing on both sides. This kind of insulation was made with ozone-depleting HCFC-141b blowing agent, but manufacturers have switched to ozone-safe hydrocarbons.
References in periodicals archive ?
Industry experts estimate that 60 per cent of rigid foam sheathing used today is extruded expanded polystyrene foam (XEPS) and the other 40 per cent is polyisocyanurate foam (PIR).
Around the corner, in the "kitchen," an L-shaped counter, a table, a fridge, and some stools were all made of this stuff, which, it turns out, is Rmax, polyisocyanurate roof and wall insulation.
Scope of work includes complete removal of the existing metal roof system down to salvaged existing polyisocyanurate insulation; installation of new specified standing seam metal roof system including all incidentals over the cleaned and prepared substrate, with alternate for additional insulation.
Sprayed polyisocyanurate foam is applied between joists as roof insulation.
NOPs have also been tested in the USA for polyisocyanurate rigid foams such as for laminated boardstock used as thermal building insulation.
A pioneer of polyisocyanurate foams, Ashida describes polyurethane and urethane linkage-modified polyisocyanurate foams for professionals and students at all stages from research and development to marketing and sales.
Construction 1--"Effect of formulation parameters on performance of polyisocyanurate laminate boardstock insulation," Sachchida N.
Designed for buildings with normal interior temperatures and humidities, the PCplusystems[TM] roof insulation consists of Foamglas[R] insulation over a polyisocyanurate underlayment.
INVISTA produces Terate([R]) polyols for a variety of applications including polyurethane and polyisocyanurate foams as well as in coatings, adhesives, elastomers and sealants.
The company then came in and installed a layer of 1” PolyIsocyanurate R-value 6.
The Dow Chemical Company has globally launched Voratherm[TM] polyisocyanurate (PIR) rigid foam for use in metal-faced sandwich panels.