Iibhodi ze-PIR, ezimfutshane kwiibhodi ze-foam ze-polyisocyanurate, ziphuculwe kwaye ziphuculwe izinto zokugquma ezisekelwe kwi-polyurethane (PU). Ngokulungelelanisa umlinganiselo we-isocyanate kwi-polyols kunye nokongeza i-retardants esebenzayo kakhulu yedangatye, ukwakheka kweringi ye-triazine ezinzile ngakumbi, kuphucula kakhulu ukuxhathisa ubushushu kunye nokungakhathali kwedangatye{1}}okuqhelekileyo ukufikelela kwidangatye le-B1{3}}elingalawulekiyo,{4}}lokucima{4}}ukucima xa ususa umsi ophantsi, kunye nobushushu obuphantsi, kunye nokutshisa okuphantsi. Xa kuthelekiswa neebhodi ze-polystyrene ze-XPS zemveli, i-PIR ine-conductivity ephantsi ye-thermal (ngokuqhelekileyo Ngaphantsi okanye ilingana ne-0.022W/(m·K)) kubukhulu obufanayo, ukusebenza kakuhle kokufakwa kwe-insulation, kwaye ifaneleke ngakumbi iimeko ezineemfuno ezingqongqo zokumelana nomlilo kunye nokusebenza kakuhle kwamandla.
Xa ndikhetha i-insulation yenkqubo yokufudumeza ephantsi kwekhaya lam, ndathelekisa iindlela ezininzi kwaye ekugqibeleni ndakhetha le bhodi ye-PIR eluhlaza. Emva kokuyibeka, yaziva yomelele kwaye ayizange iwe phantsi kweenyawo, amanxeba ayecocekile kwaye awazange adilike, kwaye yayibambelele ngokuthe nkqi kwiindonga, imibhobho yokufudumeza ephantsi, kwaye nanjengesiseko sokugcinwa okubandayo. Eyona nto iqinisekisayo kukuba i-blue hue ayidayi; luphawu olwakhiwe ngokulinganayo kokusasazeka kwedangatye elibuyiswayo. Xa ikona encinci itshiswa, ikhupha kuphela umsi omhlophe kwaye iyeke ukutshisa ngokukhawuleza ukuba umsi ugobile. Xa isetyenziswa kwi-insulation yangaphakathi yeendonga zangaphandle zesakhiwo esidala, ithintela ukujiya kweefestile ebusika kwaye inqanda ukugcwala kumgangatho ongaphezulu ehlotyeni. Emva kokufakwa kwindawo encinci yokugcina ebandayo yonyango, ukuguquguquka kwamaqondo obushushu kuncipha kakhulu, kwaye icompressor iqala kwaye iyeke kancinci kancinci.
