Is it okay to fix a cracked and leaking roof with lime? The roof is made successively, is connected together

Can't use lime to repair directly.

Lime is not adhesive, and the elasticity of the expansion and contraction is very small, affected by the temperature and humidity, exposed outdoors is very easy to crack. In addition, the lime mortar itself is not waterproof, even if there is no crack, it will be infiltrated by water causing the roof to continue to leak.

Waterproof materials can be used to repair, if the connection is a flat roof, the use of stainless steel plate covered in the joints, and rivets fixed in the joints, and then flexible waterproofing roll-roofing (APP or SBS roll-roofing) can be used to cover the paste. If there is a gap in the connection, you can cut a horizontal seam inside the higher part, one end of the stainless steel plate is fixed in the seam and fill the gap with grease or asphalt, the other end of the stainless steel plate is fixed in the low joints, and then finally covered with flexible waterproofing roll-roofing paste.