Plastic sheet or any polymer sheet does not reduce the radiant heat transfer while the aluminum / metalize is the excellent radiant barrier which will minimize tremendously the heat transfer (Radiation) to the system/building.

NO. Metalized film has a thin coat of aluminum dust on polymer film. While it have the similar reflectivity, it will be faded off/oxidize upon contact with high moisture content in the air conditioning ducts surface and lose its reflectivity thus the radiant barrier effect will be  diminished.

YES. Closed cell (elastomeric) insulation is to delay the heat transfer from conduction but not radiation. Closed cell insulation is a good insulator to avoid/minimize condensation occurrences on the external duct but hard to reduce the heat transfer from radiation!

NOT NECESSARILY, it depends to the application. Generally thicker means heavier and it may not be easy for installation and it will sag easily when it crosses over a long distance horizontally. We suggest the installer/consultant select the suitable foil based on the requirement and one of the key factor is the tensile strength which governed by the type of scrim, grade of backing material (Kraft, etc.), etc.

YES. We can customize our products to suit the customers need and expectation with the condition of optimum quantity and lead time. In fact, we have OEM our product locally and export to overseas such as Brunei, Vietnam, India, United Arab Emirates, Singapore, Cambodia, etc.

YES. Please refer to our product range list for reference and feel free to contact us for further discussion/confirmation.

Attach the K Foil reflective insulation to the roof decking before it is installed on the trusses. Or attach to the roof deck or truss chords after the roof decking is installed.

YES. The most effective way to install a radiant barrier in an existing attic is simply to staple the foil material to the underside of the top chord of the roof trusses or to the underside of the roof decking.