Hörmann Therma Tech 3400
Hörmann Therma Tech 3400 garage door features thermally broken tongue and groove section joints and polystyrene core insulation sandwiched and bonded between steel skins to offer you the best value in safety, energy efficiency and unbeatable durability.
Specifications
Steel Thickness 25 ga. Section Thickness 1½ in. R-Value 7.4 Polystyrene Core Insulation Standard
