Abstract: Embodiments of the present disclosure are directed towards formulated polyol compositions that include a first polyether polyol having an average hydroxyl number from 112 to 280 mg KOH/g, a second polyether polyol having an average hydroxyl number from 18.5 to 51 mg KOH/g, a third polyether polyol having an average hydroxyl number from 20 to 70 mg KOH/g, and at least one of: fourth polyether polyol having an average hydroxyl number from 112 to 280 mg KOH/g; and a methoxypolyethylene glycol having an average hydroxyl number from 56 to 190 mg KOH/g.

Abstract: A composite cladding panel 1 comprises a backing tray 2 and an external skin 3 with a layer of foam insulation 4 therebetween. A plurality of spacers 10 are attached to the external skin 3. The spacers 10 are of top-hat form with mounting legs 41 for mounting to the skin 3 and a support 40 to which side edge clips 20 are mounted. The clips 20 have spaced-apart formations 21 that engage in corresponding side edge recesses 22 of tiles 5. The top hat spacers 10 space the tiles 5 apart from the skin 3 of the panel so that the tiles 5 define with the skin 3 ventilation passageways 30 which can remove moisture.

Abstract: A composite cladding panel 1 comprises a backing tray 2 and an external skin 3 with a layer of foam insulation material 4 such as a phenolic or polyurethane based foam material therebetween. One of the skins, in this case the external skin 3 has a plurality of tongue and mortise blocks 5 fastened to the panel 1 by fasteners 12. Each fastener 12 comprises a peel rivet having a mandrel, a stress plate, and a main body. Pilot holes 13 are first drilled through the blocks 5 and the rivet 12 is inserted. On operation of a rivet gun the main body curls up 22 and is clamped against the inside surface of the external skin 3. The blocks 5 are thereby efficiently and effectively clamped to the external skin 3. A composite insulating panel with an integrated high performance brick cladding is provided.