The ridge vent should not be used with other roof mounted or gable end vents. They can disrupt the air flow through the attic. A properly setup ridge/soffit vent system does not need to have power roof vents to help move hot air out of the attic. Whole house fans work great with a ridge/soffit vent system. We do not consider them the same thing as the power roof vents.

V-400E, V-300, Fold-A-Vent and the X-5 Ridge Vents are all recommended to be used with shingles, slate or flat tile on hip roofs. Note: over-all roof pitch should be at least 4/12 and caulking under the vent is recommended. With heavy weight shingles the hip application would be the same as with a slate or flat tile roof. (Click here for PDF detail) See similar questions...

Take the square footage of house under roof X .48 divide this number by 20 (for V-600 products), by 17 (for V-400E or X-5) or by 13.5 (for V-300 or Fold-A-Vent products) this will give the lineal feet of product needed to meet a 1/150 vent ratio. If you are only going for a 1/300 (code minimum) vent ratio divide the above result by two. REMEMBER there MUST be an equal amount of soffit vent (in NFVA) to balance the ridge vent. See similar questions...

Yes, the ridge vent should be covered with shingles or a cap of your choice (metal, slate, tile, etc.). See similar questions...

Our products are guaranteed against defects in material and workmanship for the life of the roofing material that they are used with. See similar questions...

Ridge venting is one of the many ways to vent a roof. Depending on your roof type, it may be the most efficient way. (Contact us for an evaluation of your roof) Ridge venting works by cutting a continuous slot at the peak of your roof to provide a consistent area for air to exhaust from your attic space. Some ridge vents are warranted against leaking, and failure for the duration of the roof system. Many of the vents are the shingle over type. See similar questions...

If you have an area between the roof and the sheathing ridge and no other ventilation had been provided, ridge vents are a good idea. See similar questions...

A balanced system of intake and exhaust airflow through the attic is the best way to create effective, year-round ventilation. Thus, in addition to installing ridge vents, which act as exhaust vents, be sure your attic has intake vents in the soffit/eaves. To ensure a balanced ventilation system, match the amount of net free area the ridge vent provides with as much, or more, intake area. See similar questions...

There are many reasons to use the am-cor? system, not the least of which are its disaster resistance, use of environmentally friendly and green materials, and speed of completion. Please see our SYSTEM OVERVIEW for a complete list! See similar questions...

A balanced system of intake and exhaust airflow through the attic is the best way to create effective, year-round ventilation. Thus, in addition to installing ridge vents, which act as exhaust vents, be sure your attic has intake vents in the soffit/eaves. To ensure a balanced ventilation system, match the amount of net free area the ridge vent provides with as much, or more, intake area. See similar questions...

With an unbaffled ridge vent, wind and other elements can blow directly in through the ridge vent. Air entering the vent can create pressure in the attic, which prevents air and moisture from being pulled out. Also, stronger winds can actually pass through one side of the vent and out the other, which also prevents air and moisture from escaping the attic. Tests show that externally baffled vents outperform unbaffled ridge vents. Back to the top See similar questions...

Yes they can. Where ever you have an existing vent the cord vent can easily be installed as a replacement. The new vent will contain a series of lugs that need to go inside the slot in your window. It is most likely that the new vent is too big for the slot and you need a narrower vent. See similar questions...

Yes, the ridge vent must have at least an equal amount of soffit ventilation to balance the airflow. There can be more soffit ventilation, but NEVER less soffit ventilation then ridge ventilation. See our General Installation Instructions for examples of different soffit vent configurations. See similar questions...

GQ. Both players can use them in scenarios 1, 2 and 4. Only the attacker can use them in scenarios 3, 5 and 6. Also, please note that having multiple vents, or multiple tunnels, does _not_ increase the number of models that can use them to more than 3 (i.e. if you have two sets of vents you can still only infiltrate up to 3 models, _not_ up to 6 models). See similar questions...

With an unbaffled ridge vent, wind and other elements can blow directly in through the ridge vent. Air entering the vent can create pressure in the attic, which prevents air and moisture from being pulled out. Also, stronger winds can actually pass through one side of the vent and out the other, which also prevents air and moisture from escaping the attic. Tests show that externally baffled vents outperform unbaffled ridge vents. Back to the top See similar questions...

We were just waiting for you to ask. The am-cor? system is superior in many ways to wood framing: it is fire resistant, rot, vermin and termite resistant; am-cor? shells are hurricane, earthquake, and flood resistant. am-cor? materials are inert, non-toxic, and environmentally friendly. More information can be found in our SYSTEM section. See similar questions...

Metal building systems are sheathed in metal or exterior drywall, which are limited in durability and appearance. The am-cor? ferrocement skin bonds to the light gauge steel frame to create a unified structure, which is durable and attractive. Exteriors of metal buildings are corrugated steel, which have limited use because of appearance. am-cor? buildings have beautiful cement exteriors which can be textured, tinted, and ornamented to the designer's specification. See similar questions...

After the loss of a tooth, the bone formerly around the tooth is resorbed - often leaving a very narrow ridge of bone. In order to place an implant, the ridge of bone is split as though it were a piece of corrugated cardboard being expanded to provide a wider space between each side. For the upper jaw, this is accomplished at the same time that the implant is placed; the lower jaw requires a second surgical visit approximately three weeks later. See similar questions...

Yes. The exhaust of a ventilated Sterilizer may be routed through a vent hood if it is a dedicated exhaust type. ...top> See similar questions...