Product expertise since 1970
Product expertise since 1970
| 1970 | Karl-Heinz Lange Snr developed his first product. |
| 1972 | The KALA brand was registered, production began and the first KALA brand products were launched: the shingle roof vent and underlayable KALA terrace support system |
| 1996 | KALA starts production of large quantities for its first industry customers (flexible tube) |
| 1997 | Launch of the flat roof accessories division |
| 1998 | First industry customer for the flat roof division |
| 1999 | A new era: Karl-Heinz Lange and Ralf Lange took over the reins of the Lange company group |
| 2009 | New construction and occupation of the current premises |