14 there are a plurality of standard diameters and materials of construction of ventilation pipes 2 on the market these are subject to change and increase or decrease in plurality matching of inside and outside diameters of sleeves and threading as described within the specification and claims can be employed for size adaptations generally 0049 fig1 is a side elevation view of a ventilation pipe 2 extending through a roof 6 and encased by a ventilation pipe base 5 such as lead flashing where the ventilation pipe 2 penetrates the roof 6 it can be seen that the ventilation pipe top opening 2 a is open to the elements 0050 fig1 is a partially cutaway side elevation view of a ventilation pipe plug 21 of an alternate embodiment of the present invention the pipe plug 21 includes a head 22 having a outside periphery or for ventilation pipes 2 having a circular cross section an outside diameter o d larger than an o d of the ventilation pipe 2 for example the head 22 may have an o d of about 3 25 inches 82 millimeters the head 22 includes a plurality of ventilation orifices 25 sized and arranged to prevent entry of debris and life forms into the ventilation pipe 2 for example the orifices 25 may be circular in cross section and about 0 125 inches 3 millimeters in diameter it should be understood that the size and geometry of the holes may be sized positioned and configured in any number.