Radical 98
Radical 98, also known as the radical tile meaning "tile" is one of the 23 Kangxi radicals and is composed of 5 strokes.
In the Kangxi Dictionary, there are 174 characters listed under this radical.
瓦 is also the 72nd indexing component in the Table of Indexing Chinese Character Components, predominantly adopted by Simplified Chinese dictionaries published in mainland China. In the simplified form,'' the radical is modified and consists of only 4 strokes, instead of the traditional 5-stroke form.