Is it possible to have no ventilation in the attic?
Without baffles (blinders that prevent outside air from crossing over the vent), a ridge vent may create almost no ventilation at all. Gable vents may circulate air through only a small percentage of your attic.
Why is my upstairs HVAC not cool enough?
To understand why the system isn’t keeping the upstairs as cool as the downstairs, it helps to have a basic understanding of how a forced-air system works. Then you can apply a few DIY strategies that will help distribute the cool air more evenly throughout your home. How Does a Forced-Air HVAC System Work?
Why are roof vents important in warmer climates?
Roof Vents are for Warmer Climates Too many people believe the importance of roof ventilation is to increase energy efficiency during the summer. Good roof ventilation can do this, but shingle color, sun exposure and insulation are exponentially more important to overall energy efficiency than ventilation.
How can I Keep my upstairs room warm in the winter?
If you have a top/bottom return vent setup, open the top vents in the summer months. Opening the top vents will make your system draw in air from a higher point in the room where the warmer air collects. ( Hint: In the winter months, close the top vents keep the warmer air in the room. See: Why Is It So Cold Downstairs?)
Why are cold air vents open in the fall?
Cold air as you may know falls to the bottom levels whereas hot air rises. By closing the bottom vent, you are forcing the hot air to be drawn into the return system to be cooled by the air conditioning system. By opening the cold air vent during the fall season enables the cold air to be drawn to the furnace and heated.
What to do with cold air return vents?
Some homes might not have operable vents, but still have an upper and lower return in a room. In these cases, many homeowners put a magnetic cover over the vent to stop air from creeping in. Before the winter weather hits, it’s important to draw cold air from the floor into the system.
Why is my air vent not working in my house?
Both metal sheet ductwork and flex ductwork can get disconnected at the main duct connected, between pipe sections, and at the register termination fitting, preventing any hot or cool air from your heating and air conditioning systems from reaching the rooms in your home.
Do you have to open air return vents in older homes?
In older homes, this may not be an option. The theory is that in the Summer cooling season, you want to be circulating warmer air back through the HVAC system to be cooled. Since that warmer air is at the top of your room, you will want to make sure the highest air return is open and the lowest is closed.