Finishing in insulation work is described as?

• A. Installing insulation
• B. Cutting insulation
• C. Securing insulation to the structure
• D. Application of protective coating over insulation

Answer: (D)

Finishing in insulation work means applying a protective coating or veneer over the installed insulation to create a sealed, durable outer surface. This step protects the insulation from moisture, weather, and physical damage, seals joints, and provides a neat surface for any subsequent finishes such as paint or cladding. It completes the installation by making the system more durable and weather-resistant.

The other activities describe earlier steps: cutting shapes to fit, installing the insulation itself, or securing it to the structure. Finishing comes after those steps to give the insulation a protective, final surface.