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 |
