Strength and Energy-Efficiency
1½” thick 25 gauge 340S series, previously marketed as "H-340S" offer an R-value of 7.4, 3-layer bonded construction with a hot-dipped galvanized, finished steel front and back enclosing a HCFC-free polystyrene core. No matter which door suits your needs best, all 340S doors are manufactured to the highest quality standards and come with thermally broken tongue and groove section joints as standard.
Energy-efficient polystyrene core
The 340S series of doors offer enhanced energy efficiency and sound-dampening qualities. The polystyrene insulation fills the top of the door channel for maximum insulation. With 1½” thick sections, both series gives you an R value of 7.4
Hörmann Special Features
Double end stile design adds to the door’s overall structural integrity and its long term performance.
Hörmann 340S doors utilize safety fixtures on their bottom sections for added safety for your peace of mind.
340S door panels are prepared inside and out to offer maximum protection against the adverse effects of the elements to provide you with a long-lasting surface finish and reduced maintenance cost.