Cross flow ventilation was traditionally achieved by placing sleeper walls see figure 2 at intervals throughout the sub floor.
Ventilation between floors.
This size fits just between most floor joists.
In this video i share with you how i install a hvac air duct floor vent.
If this space is not ventilated the air in it becomes stagnant and humid and the moisture within it begins to condense on the brickwork and flooring.
Here are several ways to access ducts.
Locate cross beams between the first and second floors by running the stud finder across the ceiling.
If the ground loop was sized properly it will handle the needs of your hrv.
There are many ways but this is the way i do it efficiently with quality and time.
During the summer the glycol ground loop will lower the temperature of your ventilation system s supply air.
Mark each corner of the 4 x 4 square with a nail.
Locating the vent 1.
You cut a small hole in the ceiling to check that there.
Sub floor ventilation many traditional properties are built with a suspended wooden floor which sits above a void air space between the perimeter walls and ground.
The sleeper walls would be honeycombed in nature to facilitate airflow.
Turn off the electric power for the room you are working in.
The recommended minimum area of ventilation required for under a suspended timber floor is 1500mm 2 for every metre of perimeter of the structure.
Occasionally we need to access the ducts between the floors to improve the airflow.