All houses have plumbing vents that extend through the roof. These vents allow air to flow both in and out of the house plumbing system, helping water to flow through the pipes. Working in combination with the vapor traps, gases from the sewer system are vented safely through the roof. See similar questions...

No! The beauty of Regency Direct Vent technology is that you do not necessarily need to go up through your roof to terminate the venting. All you need is proximity to an outside wall, the distance to which depends on the model you choose. Not only does this make installation more flexible, but it also keeps the costs down. And with our sleek and attractive patented AstroCap horizontal termination cap, you won't be cluttering up the outside of your home either. See similar questions...

If you have test data from the outlet of the control device, you can use it to estimate emissions rather than using the model. If you have a limited amount of data, but have conducted inlet and outlet testing, you can calculate the efficiency of the control device and apply it to emissions estimated by the model. See similar questions...

With the patented AmeriVent® Ameri-Cap, the system can be installed on most roofs with an outlet at a minimum of one foot above the roof. It is important that the installer read the Termination Section of the Installation Instructions and the local building codes to check for exceptions. See similar questions...

Yes. If this means putting a couple of 45° bends in to get it around the eave, do so. If the vent terminates under an eave, the air from the vent will downdraft over the property possibly causing a urine smell to occur. Ideally the vent should be installed to 2-3 feet above the peak of the roof to prevent downdraft. See similar questions...

There were numerous styles used over the years – all of which are no longer available. The openings measured a standard 14 x 14”, all of which were made by Hehr. The late 1940’s “frying pan” version was replaced in the 1950's with the 2 part baking dish and integral seal, and then again in 1965/1966 with rounded corner slightly domed “Solardome”, a metal framework with plastic panels. See similar questions...

Preferably yes. We (our guild) uses vent especially when doing gvg or pvp in team arenas. Download the client version on ventrilo.com and refer to thread on vent for the rest of the information you need. See similar questions...

The purpose of the Global JXDM is to provide a consistent, extensible, maintainable XML schema reference specification for data elements and types that represent the data requirements of the general justice and public safety communities. A secondary goal is to provide a baseline model for the data dictionary that can be represented in advanced technologies independently of XML Schema. See similar questions...

This mailing list provides an English-language forum for discussion of topics related to Hayao Miyazaki, a wonderful storyteller and a director of a number of box-office successes in Japan. This list was created in the United States at Brown University in 1991 to facilitate discussion among fans of Miyazaki's works. See similar questions...

It depends on the type and size of the greenroof. Most homeowners could check a flat or low pitch greenroof. A roofing professional should if it is too large or intensive – you can include a maintenance agreement of at least twice per year with the greenroof contractor/greenroof company. Or you can work out an arrangement with the roof maintenance staff of your building. See similar questions...

Yes, although we do not recommend the application of our product by a novice do-it-yourselfer. By following our detailed installation instructions, an experienced do-it-yourselfer can install Springhouse Shingles with relative ease. See similar questions...

with most roofing products, the best installation comes from tearing off the existing roof. This is what we recommend for DaVinci products. However, it is not a requirement. DaVinci Slate and Shake can be laid over an existing roof if the situation meets generally accepted industry criteria and local building codes. See similar questions...

Yes, it includes a large rear Louvered Air Vent to help bring in fresh air. Add base vents and a greenhouse exhaust fan for the best ventilation. 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...

A Roof-Over is when the new shingles are placed over the old ones instead of tearing off the old ones down to the roof deck (wood). This practice is allowed by most communities "ONCE" or one layer on top of the original layer, mostly for financial reasons for the homeowner in an emergency situation. The reason why this is not recommended is that for one; the shingle manufacturer will not warranty a roof over, and any trustworthy Roofing Company will not warranty a Roof-Over. See similar questions...

No. We realize that this will make your installation easier, but if the toilet is not installed on its own vent, turbulation of the air in the vent will hamper the airflow, and may lead to odors. In addition, vents connected to other devices (such as sinks, etc.) will start to smell of ammonia. The toilet needs to be on its own vent in order to function correctly. See similar questions...