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(11) | EP 0 187 537 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Improvements relating to roofing treatment |
(57) A roofing tile is provided for both insulating and weatherproofing an existing roof
surface. The tile 1 has a flat top surface defined by a layer 2 of a high density
plastics material whilst the remainder of the tile is formed from a lower density
rigid polyurethane foamed material. Passageways 7 from the top surface lead to cavities
4 defined below the tile between radially extending ribs 5. A polyurethane foam is
injected through the passageways 7 to fill the cavities 4 until excess foamed material
passes out through side passageways 8 into depressions 10. A foam provides the required
insulation and also helps to secure the tile to a roof surface. The top layer 2 is
formed from a weatherproof material or has a waterproof membrane applied to it. The
contact adhesive strip 11 enables the tile to be fixed to an existing surface. |