All about POLYSCREEN® Figure 3 The percentage of light transmission by a fabric furniture depends, among other things, on the following factors: 1. Fabric Density 2. Fabric thickness (degree of transparency of the yarn) 3. Color of the fabric 4. Type of finish In this way, the transmission of the eight articles presented in our catalog, is greater in the 320, 314 and 350 (thinner and more open), intermediate with the 550 and 650, and smaller in models 351, 352 and 353. It is general knowledge that light colors reflect more light and let us remember that dark color automobiles get hotter in the summer and at the same time that summer clothing is usually found in lighter tones. For these reasons, the percentage of reflected light is less with a dark color, while its percentage of absorption (see Figure 3) is higher. The radiation absorbed by the fabric is dissipated into the room in the form of heat. Polyscreen® for exterior The recommended model for exterior use is the 650, which due to its diagonal construction is stronger than the other flat weaves of models 350 and 550. This model has a different look on both sides, and the effect that it renders in light transmission and absorption, changes according to which side is oriented towards the outside. 2. 1. In the systems for exterior protection, the absorbed radiation generated as heat hardly penetrates the inside of the room and consequently, whenever low transmittances are required, it is recommended the use of dark colors due to their high absorption and their negligible contribution to the rise in temperature of the room being protected. On this point it is important to point out the ability of Polyscreen® in permitting air flow (due to its openness), that favors ventilation and the coolness of the fabric itself. 3. Installed on the outside and particularly if it is a guided system, the fabric significantly reduces the number of insects that may enter the inside of a room. Polyscreen® for interior 1. In the case of interior use, as observed in Figure 3, light is first filtered by the glass pane. The transmittance is consequently very high (80-90%) and most of the radiation enters into the room. If this light filtered by the glass reaches the curtain, most of the components of reflection and absorption remain trapped inside the room. This is why the protected effect is slightly lower compared to the exterior use. 2. Nevertheless, interior applications also pursue decorative objectives. The models that are presently available, allows the fabrication of louvers for vertical blinds furniture, rollers, sliding panels suppliers, including roman shades. The wide selection of colors allows for a multitude of decorative options. 3. As an example, if you wish to minimize both the presence of light, and at the same time, transmittal of heat to the interior of a room, you must select some of the darker colors of models 352 or 353, placing the lighter side of the rolls facing to the outside, for the purpose of reflecting the maximum amount of light.
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