Technical Specifications
The insulated internal wall panels are made with pre-lacquered steel on both sides and have a core of polyurethane (PUR) and polyisocyanurate (PIR) with thickness options of 35, 40, and 50 mm. The panels can be up to 16.2 meters in length and are available in popular colors. The standard dimensions include a width of 1000 mm and lengths ranging from 2500 to 16000 mm. The core density is 40 kg/m3 with a thermal conductivity of 0.025 W/mK. The panels have a thermal transmission coefficient of 0.68, 0.53, and 0.44 W/m2k for 30, 40, and 50 mm thicknesses respectively. The weight varies from 11.00 to 11.80 kg/m2 depending on the thickness.

Fire Reaction
For panels with a thickness of 30 mm, the reaction to fire is classified as Bs3d0, and for thicknesses greater than 30 mm, it is Cs3d0 according to the PUR-UNE 13501-1 standard.

Deviation and Tolerances
Length deviations are ±5 mm for panels ≤ 3 m and ±10 mm for panels > 3 m. Usable width deviation is ±2 mm, and thickness deviation is ±2 mm for D ≤ 100 mm and ±2% for D > 100 mm. Deviation from perpendicularity is 6 mm, and de-linearization of internal metallic parameters is ±3 mm.

Load Tables
The document provides load tables for light for 1 span and 2 spans, detailing the load capacity for different thicknesses and spans.

Acoustic Insulation
Experimental values for a 30 mm sandwich panel show sound insulation ranging from 25 dB at 125 Hz to 37.5 dB at 4000 Hz.

Description
The panels feature a low-cost visible screw connection system with a high-density PUR and PIR foam core for thermal insulation. They can be installed vertically or horizontally and are made with galvanized and pre-lacquered steels complying with EN 508-1 standards. Various coatings are available according to customer requirements.

Thermal Insulation
The thermal transmission and weight for different thicknesses are provided, with values of 0.68, 0.53, and 0.44 W/m2ºk for 30, 40, and 50 mm thicknesses respectively.

Panel Joints
The panels use a tongue and groove system for perfect coupling, reducing thermal leaks and humidity. They are designed to be fixed directly to structures using self-drilling screws, enhancing structural integrity and reducing installation costs.

Installation
The document mentions installation procedures but does not provide detailed steps.