Fixing a roof typically involves replacing or repairing the material that covers the roof, such as shingles, tiles, or THATCH. THATCH is a material made from dried vegetation, such as straw, reeds, or grass, and is used to cover roofs in some parts of the world. Fixing a roof with THATCH requires removing the old material and replacing it with new THATCH. This process can be labor intensive and time consuming, but it is an effective way to protect a home from the elements.