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Answered 2008-05-21 19:43:56

=== === ALSO if one had read model codes they do have a minimum height depending if the roof is used for weather protection or a promenade (24" above the roof surface if weather protection 7 ft if promenade)

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How do you install plumbing roof vent?

What type of roof vent?

What is the of a vent pipe in a plumbing systeam is to?

I don't quite get what you mean. -A vent pipe in a plumbing system is usually 1 1/2 inch ABS pipe and may extend through the roof, or may end in a AAV under a countertop.

How do you fix a plumbing vent pipe?

Plumbing vent pipe is installed through a cathedral ceiling and metal roof surface there is no easy access into the roof cavity. In an attic after cut off the elbow whose female end contained the remains of the ABS pipe, glued on a short extension and new elbow in the attic, and glued a new plumbing vent rooftop riser into the new elbow. For more information visit at:

How do you clean a plumbing vent on the roof?

You should not have to clean a vent on the roof. unless you are trying to clean the waste line to the fixture below. Then you would send plumbing rods through the vent on the roof.

What plumbing devise replaces a vent pipe?

A auto vent

How to install roof vent?

In plumbing the roof vent should be a min of 4" to prevent hoarfrost

What is vtr of plumbing?

Vent through roof

Can a plumbing vent pipe be painted?

Yes a vent pipe can be painted AFTER it has passed inspections and some localities want the piping labeled "Vent"

What type of vent pipe be used to vent a gas water heater through a ceiling and roof?

B-vent pipe.

What is local vent pipe in plumbing?

One that vents one fixture

Do you ever have to clean out your sewer roof vent pipe?


Can you run plumbing drain waste vent through a side wall instead of the roof?

Yes as long as the angle at which the pipe exits the wall and goes to the outside does not exceed 45 degrees.

What is the alternative to a plumbing roof vent?

The alternative to a plumbing roof vent is an AAV. This is an Air Admittance Valve, a simple spring loaded ABS fitting that serves exactly the same function as a roof vent, except that it does not penetrate the roofing. I used 4 of these while re-plumbing my mobile home, three under countertops and one in the wall behind toilet. I'm very happy with their performance and even happier at having less holes in the roof.

How do you eliminate vacuum in toilet vent pipe?

1-Clear the obstruction from the vent or drain pipe 2-Be sure the vent is properly sized and graded up towards the penetration of the roof, or where it ties into the vent stack.

How do you know your roof vent pipe is clogged?

You can tell if the roof vent pipe is clogged by watching for slow drains. If air is unable to help force water out of the system, the water will naturally want to remain in position.

What does ventrification mean?

Ventrification is the purification of vent gases. It is most often associated with foul odors in plumbing vent stacks being deodorized by vent pipe filters.

How do you vent a laundry box plumbing fixture?

Put a tee in your pipe to the right or left of box then out of the side of the tee go over under box and put a p-trap in and go up into box then out of the top of your tee go up and out of roof for vent

What is the height of the sewer vent pipe above the roof?

A vent Terminal and depending if the roof is strictly for weather protection it terminates about 24" above the roof. If the roof area is for people then it is 7 ft above the roofing surface.

How do you install pipe roof vent and flashing?

4 " vent to prevent hoarfrost and pitch pocket around the pipe filled with bituminous material 4 " vent to prevent hoarfrost and pitch pocket around the pipe filled with bituminous material

How do you unblock the PLUMBING roof vent system?

A roof vent can be blocked by hoar frost and to illimate this phonimia you need to increase the vent terminal to 4" If a vent terminal is blocked by leaves or other soft debris the water jetting is one of the best ways to clear it

Is it ok to put a vent cap on the waste pipe that comes out of the roof on a house?


What can you do about frozen sewer roof vents and what is the cause?

I have had the same problem and researched coming up with a couple of different ideas. Firstly the pipe freezes at the roof outlet due to condensation of the warm gases as they reach the cold outside air, condensation continues until the pipe finally freezes right over. Most people climb up and pour hot water down the pipe. this will work but you will have to do it continuously during cold snaps. A better solution would be to go into your attic and wrap batt insulation around the vent pipe up to where it goes through the roof. In most cases this should solve your freezing problem of the pipe on the roof. If it does not then take a tin can larger then the diameter of your pipe and fit it over the pipe, cut a hole in the bottom the size of the pipe to allow gases to exit, then fill the tin can with insulation. this has solved problems for lots of people. --- Wrapping the vent pipe with insulation and putting a tin can over the exterior pipe is a clever solution! I think a better looking, and more permanent solution would be to install a frostless vent cap or flashing. (sometimes called roof caps at plumbing wholesale shops) on the vent pipe. These frostless caps consist of two separate pieces of galvanized metal. One is the base which is nailed to the roof and the vent pipe passes through it. This piece forms the waterproof seal. The second piece is a cylinder which slides onto the pipe and over the base with a lead cap you tighten onto the pipe. When completed the cylinder is connected to the vent pipe and is free to rise and fall with the vent pipe, and it also insulates the vent pipe from the elements and allows air from the attic to circulate around the vent pipe. These vent caps are more expensive than the rubber roof caps but are worth the difference if you live in a very cold climate. I've seen frostless caps that can also be ordered in various colors to match roof colors at shingle suppliers. The easiest and most efficient way to prevent hoarfrost is to increase the vent terminal to at least 4" diameter.

Do you need a vent on your toilet waste pipe our waste pipe goes in to the loft which is connected to a vent on the roof tiles I want to cut the pipe back to about 3 foot high can I just blank it off?

No, it has to be vented

How can you clean a vent in a toilet pipe?

you can try a garden hose down the vent on the roof use it like a drain snake with the water on

How far can Plumbing Vent go horizontally?

Depends on the size of the vent and what city you're performing the work in. Speak with a plumbing inspector for that city and tell him the size vent and he will tell you the maximum length. To determine the size of a vent you have to know developed length of pipe and fittings and the fixture units connected