Cushman & Wakefield Project Coordinator Interview Questions and Answers

Various waterproofing applications are used on terrace roof slabs of commercial and residential buildings.

• Liquid waterproofing membranes

• Bituminous waterproofing membranes

• Polyurethane waterproofing membranes

• Cementitious waterproofing coatings

• Sheet waterproofing membranes

• Examples: Dr. Fixit Newcoat, Fosroc Proofex, SikaTop Seal 107

The floor to floor height of commercial buildings varies depending on the building's purpose and design.

• The floor to floor height of a typical office building is around 3.9 meters.

• Warehouses and industrial buildings have higher floor to floor heights, usually around 4.5 to 6 meters.

• Residential buildings have lower floor to floor heights, usually around 2.7 to 3 meters.

• The floor to floor height can also be affected by the type of construction materials used and the building's ...read more

Construction joints are not typically provided for staircases.

• Construction joints are typically used in concrete structures to allow for expansion and contraction due to temperature changes.

• Staircases are usually designed as a single unit and do not require construction joints.

• However, if the staircase is very long or has multiple flights, construction joints may be necessary to allow for movement.

• In this case, the joints would be located at the landings between flights of st...read more

Modern waterproofing techniques include liquid applied membranes, preformed membranes, and crystalline waterproofing.

• Liquid applied membranes: applied as a liquid and cures to form a seamless, waterproof membrane. Examples include polyurethane and acrylic coatings.

• Preformed membranes: sheets of waterproof material that are applied to the surface. Examples include EPDM and PVC membranes.

• Crystalline waterproofing: a chemical treatment that reacts with water to form crystals tha...read more

Deflection in PT slab can be arrested by increasing the thickness of slab, using high strength concrete, and providing additional reinforcement.

• Increase the thickness of the slab to reduce deflection

• Use high strength concrete to increase the load carrying capacity of the slab

• Provide additional reinforcement such as steel bars or post-tensioning tendons to increase the stiffness of the slab

• Ensure proper curing of the concrete to prevent cracking and reduce deflection

• Use proper...read more