Underlayment for tile surface

Details Underlayment for tile surface Underlayment for tile surface

2004-10-26

2009-11-10

Chilcot, Jr., Richard E (Department: 3635)

Static structures (e.g., buildings)

Veneer tiles held by nonload-bearing grid

Attached to additional substructure

C052S386000, C052S389000, C052S390000

Reexamination Certificate

active

07614193

ABSTRACT:
A fiber-reinforced pultruded underlayment for ceramic tile includes a thin base with a plurality of elongated ridges. The underlayment is in the form of planks having interlocking tongue and groove edges. The elongated ridges have a narrow base and a wider distal portion wherein the areas between adjacent ridges have a trapezoidal cross sectional configuration. Tile is adhered to the surface using a rigid cementitious or epoxy adhesive which fills in the trapezoidal area creating a very rigid support structure for the ceramic tile.

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