Roof waterproofing sealing strip

The invention relates to a roof waterproofing sealing strip, belongs to sealed waterproofing materials, and particularly belongs to the field of sealed waterproofing of building roofs and vehicles. An arc protrusion is arranged on the upper surface of a base plate and is provided with through jointing slots axially; the through jointing slots are symmetrically arranged on two sides of the center line of the base plate to form a flared shape; an axial special-shaped hole is formed in the middle of the convex surface under the through jointing grooves, and fixing holes are respectively formed, on two sides of the arc protrusion, in the base plate. Rainwater leakage due to poor sealing caused by various tensions generated under influences of expansion caused by heat and contraction caused by cold of felts is overcome, and the roof waterproofing sealing strip is improved in terms of material selection, design and structure, is convenient to mount and demount, adaptable to roofs of various houses, low in cost, easy to operate, convenient to mount, wide in application range and capable of being operated by one person.