Soffit vents are located n the soffits, which are the horizontal surface between the top of the wall and the edge of the roofline along the bottom line of the roof. Usually the same roof edge line where you may have gutters installed.
These vents allow air to flow into your attic to provide ventilation which may then flow out the ridge vent or gable end vents.
You can see an image here: http://www.cornerhardware.com/howto/images/ht076_2.jpg
A roofing soffit is the underpanel that lies under the roof where it joins the wall of the house. It sits flat and next to the fascia of the roof. The fascia is what the guttering is attached to. So to find the soffit, simply look at the fascia that he guttering is attached to and the soffit is upvc or timber panel underneath the guttering.
The soffit is basically, any finishing material, such as wood or fiber cement, that is installed to cover the underside of your roof overhang. Soffits not only contribute to the appearance of your home, but also ventilate your living space. Clearing soffits is very important for an uninterrupted air flow in your home. Other than paint peeling down or clogged debris into your soffits, rust and rot can also cause damage. A high concentration of moisture leads to the growth of fungus and mold around it. Moreover, a clogged gutter could lead to a need for some major repairs.
Soffits need regular maintenance with care and attention. Start by inspecting them on a routine basis, preferably once a month. If you feel that they need washing down, make sure you use the proper equipment and techniques. Best way to clean a roofing soffit is by pressure washing them with a telescopic spray wand extension, I got mine from bestcargurus
Soffit vents can be painted as long as they are appropriately primed based on their existing finish.
With either gable vents, soffit vents or ridge vents. The more the better
No, but they all should have.
Most soffit material is now made with a continuous 3" wide vent.
The vents allow the loft space to breath. By blocking it can cause damp air to accumilate and thereafter you have condensation damp and mould.
WHICH VENT If you're talking plumbing roof vents or soffit or ridge attic air vents; absolutely not!! I can't thing of a single vent that would be opened and closed at will.
It is recommended that you have both intake vents and exhaust vents. Most do it yourself sites recommend soffit vents for the intakes. Exhaust vents vary in both type and cost. For smaller houses the most recommended type is a ridge vent system. The number you will need depends on the square footage of your attic.
Soffit
the roof is required to have venting (size) based upon the square footage of the ceiling area
The soffit of a pipe refers to the underside or bottom of the pipe. It is the part of the pipe that is facing downwards or towards the ground. The soffit can be important for ventilation and drainage purposes, and it is often covered with a soffit vent to allow air to flow through.
The soffit is the underneath side of the overhang on the edge of the roof. The part between the gutter and the side of the house.
$300labor + 250 for material for 50 ft. of 2ft wide soffit.... $550 = 50 ft.