To determine which option is NOT a type of clay tile for roofing, we should first understand what each term generally refers to regarding construction materials.

1. Spanish Tile: This is a type of clay roofing tile known for its distinctive wavy pattern, which helps enhance water drainage from roofs. Spanish tiles are commonly used in many parts of the world and are considered a type of clay tile for roofing.
2. Mangalore Pattern Tile: These are traditional clay roofing tiles from Mangalore, India. Known for their characteristic 'Mangalore' name, they are widely used in Indian construction, and their design allows for good drainage and structural integrity.
3. Terracotta Jali: 'Jali' in construction refers to perforated or latticed screens, usually made from terracotta, stone, or other materials. While terracotta is a type of clay, 'Jali' itself is more commonly used for decorative purposes, like screens for ventilation or ornamentation, rather than roofing.
4. Allahabad Tile: These are a style of clay roofing tiles associated with the region of Allahabad in India, similar in function to Mangalore or other regional clay tiles and used for roofing applications.

Based on these definitions, we can conclude that:

• The Terracotta Jali is NOT a type of clay tile for roofing. It is primarily used for ornamental and ventilation purposes.
• Other options – Spanish Tile, Mangalore Pattern Tile, and Allahabad Tile – are all types of clay tiles used for roofing.

Therefore, the correct answer is Terracotta Jali.