vertically acting hydraulic press preferably the mold surface temperature is set to about 200 u00b0 f the press should be capable of imposing at least 1000 psi on the molten material to distribute it throughout the mold once the mold is closed by the press the composite material should be cooled just long enough to form a cooled skin on the panel so that the panel can be transported outside the press either robotically or manually the cooling time can be as low as 15 seconds and is typically 45 to 60 seconds compression molding is preferred to form the panels of the present invention because of their high inherent viscosities which are a result of high fiber content the construction panel formed by the present process preferably has an upper portion and a lower portion the construction panel produced according to this process can have any shape size or texture as exemplified above a method for installing the construction panels on a surface comprises attaching the upper or head lap portion of a first panel or a first course of panels of the present invention to a surface and overlaying a second panel or second course of panels respectively of the present invention over the first panel or course of panels and attaching the upper portion of the second panel or course of panels to the surface in this manner the lower portion of the second panel or course of panels overlaps the upper portion of the first panel or course of panels to a degree that at least a portion of the second panel or.