Tender Summary: PR-014194

Objectives

The primary objective is to protect an existing thatched roof from damage caused by wildlife, including baboons, birds, and other animals. The intervention must preserve the roof's inherent weatherproofing capabilities and ensure that natural ventilation remains fully functional throughout the installation process.

Scope of Work

• Supply and deliver galvanized wire mesh materials to the designated site.
• Securely install the wire mesh over the completed thatched roof structure.
• Execute all works at Rietdak Cottage, located within the Algeria area of the Cederberg Wilderness Area.
• Ensure the installation does not compromise the structural integrity, drainage, or aesthetic function of the original thatch.

Technical Requirements

• CIDB Contractor Grading: Tenderers must possess a minimum Contractors' Institute Development Board grading of 2SN. Eligibility is strictly limited to contractors holding this specific grading level.
• Documentation & Submission Protocols: Tenders must be prepared exclusively using the official tender documentation issued by the employer. All submissions must comply with prescribed methods for sealing, addressing, delivery, opening, and assessment.
• Environmental & Site Compliance: Works must be carried out within a protected wilderness area, requiring adherence to standard nature reserve operational guidelines and minimal ecological disruption.

Skills Requirements

• Proven trade qualifications and practical experience in specialized roofing and protective mesh installations.
• Competence in high-level structural fixing, ensuring mesh tensioning and anchoring do not damage underlying thatch layers.
• Ability to manage logistics, material handling, and labor coordination in remote wilderness locations.
• Familiarity with corrosion-resistant materials and installation techniques suited for long-term wildlife deterrence without impeding airflow or water runoff.

Explanation of Specialized Terms

• CIDB 2SN Grading: Refers to the South African Construction Industry Development Board evaluation system. The "2SN" designation certifies a contractor's financial, managerial, and technical capacity to execute medium-value projects involving specialized roofing and masonry works.
• Galvanized Wire Mesh Over Thatch: A protective engineering method where a zinc-coated steel mesh is tensioned and fixed above traditional reed or grass roofing. It serves as a durable physical barrier against climbing and perching wildlife while permitting rainwater drainage and cross-ventilation to pass through unimpeded.
• Compulsory Clarification Meeting: A mandatory pre-bid session convened by the employer. Attendance is required prior to the submission deadline to receive critical site-specific guidance and clarify contractual expectations.