The rethatching process typically begins with a thorough inspection of the existing roof to assess the condition of the thatch, the underlying support structure, and the frame. This inspection helps determine the extent of the work required. In some cases, the roof may need only partial rethatching, where worn sections of thatch are replaced. In other cases, a full rethatching might be necessary, especially if the roof is heavily deteriorated or has been exposed to long-term weather damage.

Once the old, damaged thatch is removed, the roof is cleaned and prepared for the new material. The supporting structure, often made of CCA-treated poles or timber, is also checked for stability, with any damaged parts repaired or replaced. Cape reed, highveld grass, or other suitable thatching materials are then used to rebuild the roof. These materials are carefully applied in layers to ensure proper waterproofing and insulation. Special attention is given to the ridge, eaves, and areas of high exposure to ensure durability.

Rethatching old roofs is a highly skilled job that requires experience and expertise. Professionals who specialize in thatching are typically called in for the task, as they can ensure the roof is restored to its original condition. With proper rethatching, an old thatch roof can last many more years, providing beauty, energy efficiency, and protection against the elements.