OLEG SYSTEMS

Buffalo Blower  Co. produces industrial Make-Up Air Unitss for ventilation and heating of large industrial facilities. Makeup air is vitally important to the health and welfare of a building and its occupants. If the proper amount of makeup air is not introduced into a space, consequences can range from exterior doors that are hard to open or close, to buildups of carbon monoxide in the space, to fume hoods that don't actually control the contaminants they were intended to control. In addition, the outside air that is brought into a building to "make up" the amount of air that has been exhausted has a very significant impact on cooling and heating capacities. Insufficient make-up air can lead to increased building infiltration and higher energy costs, not to mention unhappy building owners and uncomfortable occupants. While there are no facts and figures to show how many buildings provide the correct amount of makeup air, it can be stated that there are probably a great many that do not have sufficient makeup air. And there's no one solution that is available for every building. Each building must be analyzed with a careful air balance calculation and evaluated based on the diversity of sources of exhaust air and infiltration.
Roof ventilators are another option.  They work in both summer and winter.  In summer, roof ventilators reduce the build up of heat in the ceiling spaces, reducing the heat load on your insulation, meaning that the insulation works more effectively. In turn, you will save on your electricity bills as the air-conditioning systems will not have to work as hard.  In winter, it reduces the amount of condensation that forms when warm, moist air from exhaust fans meets cold surfaces.  Roof ventilators will also reduce the amount of corrosion and timber that occurs because of condensation.   Roof ventilators should be installed where there is sarking underneath tiled roofs, when metal deck roofing is used, and when there is evidence of condensation in the roof spaces or ceilings.