Building Envelope

Simply defined, the building envelope is the exterior or shell of a building that repels the elements.


At its most complex definition, it’s an engineering system that meshes elements such as structural integrity, moisture control, temperature control, and air pressure boundaries into a single design strategy. It is the physical separator between the conditioned and unconditioned environment of a building including the resistance to air, water, heat, light, and noise transfer.


While the building envelope is a silhouette of sorts, it’s important to remember that these are compounded layers. Each part of the building envelope must be thought of as a collection of smaller pieces working together to provide structural support.


At Klasse we can support your project with our Outwear®external sheathing board, FireFend® breathable membranes and silicones, or Glidevale protect membranes.

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FireFend® Membranes


Adhesive solutions for Sealed Unit manufacturers


Unrivalled Jacketing & Weatherproofing Systems