Abstract: A vent pipe cover having a double walled body for engaging the outermost surface of a vent pipe. The upper end of the body is capped and gas flow passages are provided by first apertures extending through an inner wall and second apertures extending through an outer wall. The apertures are generally formed in at least an upper portion of the body. The body comprises a length sufficient to provide adequate head space for the flow of gasses above the upper edge of the pipe. An insulator may be positioned between the inner and outer walls to reduce heat loss through the pipe. A flared skirt extending from the lower surface of the outer wall includes cutting lines to adapt the vent pipe cover to roofs of differing pitches. One or more deformable clips are used to releaseably engage an inner most surface of the pipe cover with the outermost surface of the vent pipe.