caulking vs weatherstrip

caulking

noun
  • A sealing material used to seal joints between heterogeneous materials in many kinds of construction and manufacture. 

weatherstrip

noun
  • A narrow piece of material used to prevent cold air from entering a building through the edge of a window or a door. 

verb
  • To apply such a strip. 

How often have the words caulking and weatherstrip occurred in a corpus of books? (source: Google Ngram Viewer )