Underdeck Insulation Phenolic Foam is made from the rigid cellular foam insulation material. This is accessible with a substantially closed cell structure. It has been made from poly-condensation phenol. It also has aldehydes, homologues derivatives and ketones. Underdeck Insulation Phenolic Foam has different distinct properties. It is finer than the conventional insulation materials. This is accessible with fine cell structure and high closed cell content. It is available with the width of 25/30/40/50/75 Millimeter (mm).