Specifications
The document outlines the specifications for ceramic latticework (celosía) produced by Ceràmica Ferrés. The dimensions of the lattice can vary by 2-4mm due to the type of clay or finish, and slight color variations may occur among pieces. The standard size is 27 x 12.5 x 6.5 cm, weighing 1.45 kg, with 30 units per square meter. The ceramic pieces are made from local clays, providing unique properties for extrusion and single firing. The glazed surface resembles glass, offering a wide range of colors achieved through oxides and varnish.

Procedures
General instructions for installing ceramic latticework include creating a layout with a maximum dimension of 320x320 cm and using expansion joints between modules. The lattice can be bonded with Portland cement mortar or polyurethane adhesives. For applications as ventilated or screen walls, stainless steel anchors are recommended. Structural specialist advice is suggested for specific cases.

Standards and Testing
The document references several UNE-EN ISO standards for testing water absorption, frost resistance, chemical resistance, and abrasion resistance. For example, Terracotta Sunbreaks have a water absorption rate of 10%-13% and comply with frost resistance standards. Glazed ceramics have an average water absorption of 13% and show no defects in crazing resistance tests.

Recommendations
It is recommended to use a waterproof joint in damp areas to prevent water infiltration. Glazed surfaces may show wear over time, and bright colors are not recommended for high-use areas. Immediate cleaning of acids and food is advised to prevent surface damage. Due to batch variations, multiple samples should be used to assess color before final decisions.

Limitations
Ceràmica Ferrés disclaims responsibility for improper installation or maintenance. Customers must ensure product suitability for specific applications. No guarantees are provided for abrasion resistance or material displacement.