How to measure for Suction Mounted Solar Shade Panels 
Note: Measurements should be kept to within 1/4 inch tolerances. Be sure to read suction cup placement!
Home and Office Windows:
Easy Up Solar Shades can be mounted either inside or outside. There is very little difference in heat reduction between inside mounting and outside mounting. This is because UV rays pass through glass without causing much excitement to the glass molecules. 
When feasible, it is often desirable ( for aesthetic purposes) to mount the panels on the interior. Interior mounting has a tendency to lessen the view of the suction cups from the inside. Regardless, the solar panels should be cut to the exact size of the window pane or window opening. Glare reduction is obtained whether mounted inside or outside.
On windows with cross members, you can generally use one panel to cover entire opening if the cross members do not protrude more than 1/4 th (0.25) of an inch from the surface of the glass. When ordering one panel to cover a window area with cross members, be sure to let us know where those cross members reside so that we do not place suction cups at those locations (explain in remark section or email us with rough drawing).
Rectangular windows with parallel sides can easily be described with simple width and length measurements. Individual panels should be used on double hung and swing out windows. Drawings or templates should be provided when requesting  triangles, trapezoids or curved sections.
RV and Watercraft Windows:
Mounting on the outside: Outside mounting of solar shade provides the greatest temperature relief when the windows are tinted or have window film on them. This is because the properties of film and tinting tend to heat the glass as they attempt to reflect the UV rays away. Solar shade will prevent the UV rays from reaching the tint or film. Glare reduction is obtained whether mounted inside or outside.
Quite often these windows are not exact rectangles and are in various shapes with curves, etc. Therefore it is sometimes desirable to use a rectangular panel larger than the window and mount it to the smooth exterior surface surrounding the windows. If this is done, the panel should measure a minimum of 2.5 inches larger than the window on all sides to provide room for the suction cups. 
If there is no room around the window for mounting to the painted surface, then a drawing or template may be necessary for accurate communication of measurements.
Exterior mounted panels should be removed when using the vehicle or watercraft at speeds exceeding 30 mph.
When mounting on the interior, the only smooth non-porous surface may be the window pane. Therefore again, it may be necessary to provide a drawing or a template so that the panel can be custom cut to the exact dimensions of the window.
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