Lightweight mold-made clay block of application class la (= approved for timber-frame masonry work) in format NF. ClayTec developed this brick 30 years ago with the properties of form-hammered clay. The composition and manufacturing technique make it very resistant to moisture and frost. The historical normal format (NF) lies well in the hand, the size is just right for timber-frame construction. The 1200 NF clay block can be knocked and cut into shape very easily. Lightweight clay masonry mortar is an ideal mortar for plastering with coarse lime basecoat render with hair.

Field of application: Mould-made and extruded clay blocks of application class Ia for facing and non-load-bearing interior walls. Ideal for timber-frame infills with subsequent lime exterior plaster.

Composition: Building clay, wood and straw chaff | Building material: Solid bricks, unperforated | Application class: Ia | Gross density class: 1.2 | Thermal conductivity: 0.47 | W/m-K. µ-value: 5/10