Vent pipes are used to air the plumbing systems in a building. They are connected to foul and soil water pipes. These are placed on bathroom and lavatory rooms. They allow the foul smell from the utilities to leave the house into the open above the roof. They have caps to prevent birds or pests from entering the house drainage system. They are usually PVC pipes. The pipes can be positioned inside or outside the building. For aesthetic purposes, they are placed inside to give the facades a good appearance.
The diameter of a vent pipes should be a minimum two inches. An air pipe located in the house should be encased in plaster. It should not pass through a living room, bedroom, dinning or kitchen. The connection should start from the ground floor to the roof. It should be from a man hole or inspection chamber to the roof. The connections must be air tight for the system to be effective. All soil or foul water pipes should have good gradients. This is important for the water to clean the pipe as it carries the waste to the sewer.
The fixing of a vent pipe should be done with medium duty pipes. When fixing the air pipe, identify the corner to position it. The water closet is usually a good point of adding the air pipe. The pipe taking the waste to the sewer outside is given a tee junction. The middle point will go into the water pan. The other two ends will connect to the sewer and bend for the air pipe at the corner. The bend connection is done with an appropriate adhesive. The pipe is measured to pass the roof covers. It extends by one foot above the roof while fitted with a cap.
A chicken mesh or gauze wire is tied to the vent pipe. Plaster is done to cover the pipe. Tiling is then done to match the lavatory finish. The point where the pipe cuts through the roof is then sealed. This will prevent rain water from passing into the house. The sealant used should allow for the structure movement. A Hard or brittle sealant will easily get broken and let in water through the crack. Water is then filled to test the system. This should be able to flash without any leakages.
Andrew Karundu Is A Building Economist, Providing Home Based Solutions To Fixing, Repairing, Remodeling And Redesigning Homes. He Uses Simple Tried And Tested Methods To Improve Family Lifestyles.Visit His Site Here For Adequate Information On Most HOME IMPROVEMENT SOLUTIONS .
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