Panel Thickness and Support Spacing:
The document provides tables detailing the allowable support spacing for panels of varying thicknesses. The tables are divided into two categories: panels with two supports and panels with three or more supports. The thicknesses range from 30 mm to 120 mm, with corresponding support spacing values provided in centimeters.

Thermal Transmittance:
The thermal transmittance (U-value) is calculated for panels with nominal thicknesses of 0.50 mm for both copper and steel. The U-values decrease as the panel thickness increases, indicating better insulation properties with thicker panels.

Load Bearing Capacity:
The document specifies the allowable uniformly distributed loads for panels, considering a safety coefficient of 2.5. The conversion ratio used is 1 Kg./m2 = 0.00981 KN/m2. The tables are based on panels with a 0.50 mm thick copper external support and a 0.50 mm thick steel internal support, with a deformation limit of deflection f = 1/200 L.

Material Specifications:
The panels are described as having copper/steel compositions, with specific thicknesses for both materials. The document also mentions roofing panels and their useful width, along with gasket specifications.