Jobs and Tenders Tender TDR-2026-7064

Prefab installation

Typical installation sequence 1. Foundation / floor preparation * Construct concrete slab or foundations according to the structural design. * Check levels, dimensions and anchor positions. 2. Steel frame installation * Install columns, beams, rafters and other structural steel members. * Plumb and align the frame. * Fix the frame to the foundation using anchor bolts. 3. Wall sandwich panels * Start from a building corner. * Position the first panel vertically. * Fix it to the steel frame using self-drilling screws with appropriate washers. * Interlock the next panel through the tongue-and-groove joint. * Continue around the building. 4. Roof sandwich panels * Install roof panels over the purlins. * Maintain the required roof slope. * Overlap/lock panel joints according to the manufacturer’s system. * Install roofing screws and sealing washers. * Seal penetrations and joints against water ingress. 5. Flashings and trims * Install corner flashings. * Base/foot flashing. * Roof ridge flashing. * Eave and gable trims. * Door/window flashing. 6. Doors and windows * Install prefabricated doors, windows and frames. * Seal perimeter joints. 7. MEP installation * Electrical conduits, lighting, so

Posted by

IKM

Region

DSM

Closing date

31 Dec 2026

17:00 · Africa/Dar_es_Salaam

Sector

Jobs and Tenders

Interest

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