Possible Clues:

• Protective covering on a building
• Outside-wall covering
• Stick around tot to offer protection
• Stick around to put on good protective coat
• Inside grip, include extra-protective outer covering
• In hold put more protective material
• Keep hold when about to put on pebbledash, say
• Reckon it's essential to grip, as building material
• Class doing simple task that's put up on the wall
• Outside wall covering