Properly venting a building is a critical consideration when planning your building. Getting rid of the initial ground moisture, quickly, when you have erected your new shelter is something many people do not think of. Quality air changes for plants or animals is something that automatically comes to mind. Getting rid of moisture is equally as important for storing your valuables.
Since warm air holds moisture and warm air rises, it is important to have venting capacity as high as is possible. Venting through the roof, with individual turbines or a continuous roof vent, is the most effective but also the most costly. This is only really necessary when you are in a very protected spot and there is a real need to keep the temperature down in a long building.
Most medium length buildings that have the ends facing into the prevailing winds, can be adequately vented with gable end peak vents. Make sure that these openings are as big as possible and as high as possible. It is also important to make sure your “windows” can withstand the winds in your area.
As with all the other considerations, please do not hesitate to contact us with your specific set of circumstances and challenges
Ventilation can either be done passively through openings or mechanically with fans. Roll up sides are an economical way of getting lots of air movement since no electricity is required. Roll up sides become even more effective when used on longer buildings. Roll up sidewalls are often used in combination with a small exhaust fan for early and late season ventilation when opening the sides is not practical.
If a structure is very exposed, it is best not to open more then 3’ in height due to potential of wind damage. If a structure is extremely sheltered, it is best to go even up to 6’ to create maximum opening. Roll up sidewalls are most effective when used in combination with peak end wall vents to create a “chimney effect” to draw warm air out of the building, especially when it is very calm. These vents are effective for air movement when outside temperature does not allow opening of the sides.
When a structure has a low profile, you will need to be careful during rainy periods due to moisture getting into the structure area. High profile structures (with straighter walls) usually work better with roll up sidewalls. When preventing a floor draft is an issue, the roll up mechanism can be raised and then the structure is lined with a skirt for the bottom 2’-3’. When using this method of ventilation, it should always be done on both sides. An effective use of this method includes opening the “downwind side totally and the opposite side on marginally.