(19)
(11) EP 0 132 325 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.04.1986 Bulletin 1986/17

(43) Date of publication A2:
30.01.1985 Bulletin 1985/05

(21) Application number: 84304424

(22) Date of filing: 28.06.1984
(84) Designated Contracting States:
BE DE FR GB LU NL

(30) Priority: 29.06.1983 US 508884

(71) Applicant: Armstrong World Industries, Inc.
 ()

(72) Inventors:
  • Eckert, Donald Charles
     ()
  • Lilley, George Lawrence
     ()
  • Tshudy, James Arthur
     ()
  • George, Jay Richard
     ()
  • Sensenig, Darryl Lamar
     ()

   


(54) Adhered surface coverings


(57) A process for applying an adherent surface covering to a subsurface so that the covering will accommodate dimensional change in the subsurface without buckling although in principle its critical buckle strain is less than the expected dimensional change, in which various properties, for example the relaxed compressive stiffness and the bending stiffness, of the covering are measured, calculations to enable an adhesive of appropriate properties to be selected are made, and the covering is applied using an appropriate adhesive. The reinforcement in a reinforced surface covering may alternatively be modified so that the relaxed compressive stiffness of the covering is low enough to accommodate dimensional change in a subsurface.










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