Your house needs a ventilation system that will provide fresh air in closed rooms

Your house needs a ventilation system that will provide fresh air in closed rooms. The ventilation system based on natural supply and exhaust ventilation, which is achieved through the creation of exhaust openings. How to cut the vent yourself, you will learn from our article.

Ventilation holes are generally placed in areas of the greatest contamination is the kitchen, bathroom, WC.

Making a round exhaust port

In order to make the necessary opening of the duct, which subsequently will need to put a vent box, you will need a core drill for stone.

Primarily protect against dust and noise: gloves, mask and earplugs.
Mark the center of the future hole, and start drilling using conventional drill bits for stone. Next it will be the guide for the core drill.
Hold the drill in a horizontal position (slightly tilted down), cut the opening of the cylindrical part of the tool.
When finished, carefully remove the cut material from the wall.
Remove dust and dirt from the walls of the resulting hole.

Then you can begin the installation of the ventilation box!