DCHP-1 Online
frost leak 
condensation and freezing of moisture on the inside of a wall, caused by the penetration of intensely cold air.
- 1949 The Wannegan showed a number of "frost leaks" which manifested themselves at night as large patches of condensation and frost, which, when the fire was started next morning, proceeded to drip over everything below.
- 1949 The Wannegan showed a number of "frost leaks" which manifested themselves at night as large patches of condensation and frost, which, when the fire was started next morning, proceeded to drip over everything below.