PIR bod, sotpela bilong polyisocyanurate foam bod, em i wanpela gutpela na apgredim insulesen materiel we i kamap long polyurethane (PU). Taim ol i stretim 'ratio' bilong 'isocyanate' na 'polyols' na putim ol 'flame retardants' we i save wok gut tru, ol i save kamapim wanpela 'triazine ring' straksa we i stap gut, na dispela i save helpim tru 'heat resistance' na 'flame retardancy'-i save kamap long mak bilong B1 'flame-retardant standet, na i save kilim em yet taim paia i rausim smok, na i no gat liklik paia i save drip isi long bikpela hat. Taim yumi skelim wantaim ol XPS 'extruded polystyrene' bod, PIR i gat liklik 'thermal conductivity' (planti taim i liklik o wankain olsem 0.022W/(m·K)) long wankain 'thickness', i gat bikpela 'insulation efficiency', na em i gutpela moa long ol samting we i gat strongpela lo bilong paia na 'energy efficiency'.
Taim mi makim 'insulation' bilong 'underfloor heating system' bilong haus bilong mi, mi skelim planti opsen na bihain mi makim dispela blupela PIR bod. Bihain long putim, em i pilim strong na i no pundaun aninit long lek, ol hap we ol i bin katim i klin na i no bruk bruk, na em i holim strong long ol wol, ol paip bilong hatim graun aninit long plua, na tu olsem as bilong putim kol. Samting we i mekim yumi i amamas tru em olsem blupela kala i no wanpela kala; em i wanpela mak we i kamap long wankain 'dispersion' bilong 'flame retardant'. Taim ol i kukim wanpela liklik kona, em i save kamapim waitpela smok tasol na i no save kukim taim smok i go antap. Taim ol i yusim long 'interior insulation' bilong olpela bilding ausait wol, dispela i save stopim kondensesen klostu long ol windo long taim bilong kol na i save abrusim 'stuffiness' long top floa long taim bilong san. Bihain long ol i putim insait long wanpela liklik 'medical cold storage compartment', ol senis bilong tempereja i go daun tru, na 'compressor' i stat na stop isi isi.
