Specifications
The document outlines the specifications for ceramic latticework (celosía) and glazed ceramic pieces. The dimensions of the lattice can vary by 2-4mm due to the type of clay or finish, and slight color variations may occur. The lattice measures 19 x 19 x 7 cm and weighs 2.25 kg, with 27 units per square meter. The ceramic pieces are made from local clays, providing unique properties for extrusion and single firing, with a wide range of colors achieved through oxides and a unique varnish.

Procedures
General instructions for implementing ceramic latticework include using a maximum grid size of 320x320 cm and ensuring expansion joints between modules. Bonding can be done 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 each case.

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 cracks in brown and red colors after 100 frost cycles.

Recommendations
It is recommended to avoid pre-assembly of lattices before delivery to the site due to potential size variations. In damp areas, waterproof joints should be used to prevent moisture 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.

Limitations and Liability
Cerámica Ferrés, SA, does not accept responsibility for improper installation or maintenance. Customers must ensure product suitability for specific applications. No guarantees are provided regarding abrasion resistance or material displacement.