PPTV Contacts

Positive Pressure Tube Ventilation Design

Supplemental positive pressure tube ventilation (PPTV) systems are designed to complement natural ventilation, and can be useful in mechanically ventilated barns during cold weather when negative pressure systems are less effective at providing clean air to the calves’ immediate micro-environment. The Dairyland Initiative design method ensures appropriate aperture ratio, average internal static pressure, and throw distance to ventilate the barn uniformly without creating a draft on calves unless indicated for warm weather use. Agricultural engineers at UW-Madison College of Agriculture and Life Sciences have studied our design method and have found it reliable for predicting performance of the PPTV system.

Please contact a Dairyland Initiative Certified Consultant or workshop trainee to have a supplemental positive pressure tube ventilation system designed for your calf or heifer barn. A document explaining what information is needed to put together a design can be here (Info for Supplemental PPTV plans.pdf).

Industry Contacts

Certified Consultants: Certified Consultants have attended The Dairyland Initiative Workshops and have demonstrated proficiency in year-round and warmer weather positive pressure tube ventilation for youngstock housing. Please contact them directly with PPTV design requests.

Calf Barn Trainees: These individuals have participated in the day-long course on how to improve air quality in calf and heifer facilities through the use of supplemental positive pressure tube ventilation systems.

Holding Area Trainees: These individuals have been through a day-long training on how to design positive pressure tube ventilation systems to deliver fresh air at heat abatement airspeeds to cows in milking center holding areas.

Map Legend

 Certified Consultants for Youngstock PPTV Design

 Calf Barn PPTV Workshop Trainees

 Holding Area PPTV Workshop Trainees