Ventilation and moisture in new energy-efficient manufactured homes

Publisher: Pacific Northwest Laboratory in Richland, WA

Written in English
Published: Downloads: 327
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  • Mobile homes -- Heating and ventilation,
  • Mobile homes -- Northwest, Pacific -- Energy conservation

Edition Notes

Other titlesEnergy efficient manufactured homes.
StatementD.L. Hadley, S.A. Bailey, and G.B. Parker.
ContributionsBailey, S.A., Parker, G.B., Pacific Northwest Laboratory.
The Physical Object
ID Numbers
Open LibraryOL17620382M

  A central aim of energy-efficient building is to eliminate air leaks through the roof and exterior walls. A leaky building envelope not only makes it harder to heat and cool a house but also increases the risk of condensation and moisture damage. “All new homes should have a mechanical ventilation system — even those that are trying to. 7. Create an Energy Efficient, Fresh Air Supply. Since zero energy homes are so airtight, a continuous source of fresh filtered air and moisture control are critical to its success. This need for ventilation has a silver lining: zero energy homes are healthier and more comfortable than standard homes.   One way to minimize air quality and moisture problems in a home, without opening a window, is by the installation of a mechanical ventilation system such as an air-to-air heat exchanger. An air-to-air heat exchanger brings two air streams of different temperatures into thermal contact, transferring heat from the exhausting inside air to. New Technology, New Techniques In the past, infiltration, or the leakage of air in and out of the house through unintended gaps, has provided a large portion of the ventilation. However, with the advent of energy-efficient building technologies and materials, homes now have a tighter envelop that limits natural ventilation.

A new home that’s ENERGY STAR® certified is built with quality construction techniques and materials to ensure higher than average energy efficiency with ENERGY STAR certified appliances, energy efficient lighting, fewer air leaks and drafts and reduced noise. Older mobile homes often come with paneled interior walls that are somewhat dark. Paint the strips of molding between each panel of wallboard. White works well in most homes, giving a crisp, spacious appearance. Use warm reds or greens in the living room, or simply apply a coat of primer and some semi-gloss finish to the panel to give it a rich. The Zero Home is the first residence in Climate Zone 5 to be certified for net-zero energy consumption. Climate Zone 5 consists of regions of the country that experience warm summers and cold winters.   Lawrence Berkeley National Lab (LBNL) scientists, led by Max Sherman and Iain Walker, are investigating whole-house ventilation options to support California’s Zero Net Energy Homes research project is called Smart Ventilation for Advanced California Homes (SVACH).California’s energy-and-climate goal calls for all new residential buildings in California to be .

- Explore Long Truong's board "ventilation system" on Pinterest. See more ideas about Ventilation system, Ventilation, Heat recovery ventilation pins. For today's tightly-constructed, energy-efficient homes, the Broan ERVS with exclusive Venmar ® core technology is an effective, balanced ventilation solution that provides continuous fresh. Yet, over , new homes and thousands of additions are built each year with dirt crawl spaces. There are now 26 million of them. The building code not only allows dirt crawl spaces, but actually makes the problem much worse by requiring them to be vented. Homeowners, and the U.S. economy are paying the price in so many ways.

Ventilation and moisture in new energy-efficient manufactured homes Download PDF EPUB FB2

Homes in the cooling-dominated South and Southwest, where most new U.S. homes are being built. Furthermore, mechanical ventilation of homes is relatively uncommon in parts of the sun belt, where many residential builders, HVAC contractors, and home buyers equate “ventilation” with bathroom.

New homes are required to be built tightly - much tighter than they ever used to be. The codes demand it. Programs demand it. And both the occupants and the building need fresh air. There are a lot of choices on how to accomplish adequate airflow that is quiet, energy efficient, and comfortable.

This book helps to sort out those choices.5/5(1). Published inthis book is a little outdated now and does not have modern ASHRAE ventilation formulas, and many devices mentioned are no longer manufactured under those names. Nevertheless it seems nothing has changed much in 20 years in ventilation by: 9.

moisture problems in manufactured homes. It reviews the symptoms of typical problems, outlines preventive meas­ ures, and provides solutions pertinent to home design, manufacture, installation, operation, and maintenance. A home's ability to resist potential moisture problems is a result of many decisions made at different stages of the home's File Size: 1MB.

Mobile home ventilation is crucial because most homes are small and don’t have a lot of extra space. Meaning, it is easier for indoor air to stay trapped inside which will eventually cause a lot of problems.

Use the right ventilation method in your mobile home to avoid these issues and implement these tips to have a more comfortable living.

Instead of having to repair water damage after it occurs, this article will help you understand moisture problems in manufactured homes.

HUD produces some extremely in-depth resources via PDF, bound book, pamphlets, and ebooks on a variety of housing and community topics.

source energy use and can reduce the Home Energy Rating System Index by around 4 points. The costs for implementing this duct design strategy on the three research homes was in the range of $6,–$10,; however, the builder expects that this figure can improve in future homes.

"As homes get tighter, there is certainly a higher risk to indoor air quality, but we do have the tools for reducing exposure to indoor air contaminants, as well as designing proper ventilation systems, including tight ducts and filtration, that can mitigate that risk and improve indoor air quality," says Iain Walker, a scientist for Lawrence Berkeley National Laboratory.

More important, though, we need a better way of deciding when to install mechanical ventilation. For new homes, it's pretty easy. "Build tight and ventilate right." ASHRAE works for this.

With existing homes, we need a method that's based on indoor air quality in addition to how much air leakage a home has. Related Articles. The lack of natural ventilation due to air tight spaces can lead to the build-up of moisture laden stale air within the home.

This is the perfect breeding ground for mould that is associated with triggering allergy or respiratory problems. Common places for mould to grow include widow sills, curtains, carpets and walls. Mechanical ventilation has a key role in modern energy-efficient homes, in cold climates: to provide fresh air to air-tight homes.

But mechanical ventilation can also be crucial to exhaust stale air, to provide cooling or to prevent moisture, mold and mildew. Chapter 7 Heating, Ventilation, and Air Conditioning Chapter 7 Heating, Ventilation, and Air Conditioning One of the most important decisions regarding a new home is the type of heating and cooling system to install.

Equally critical is the heating and cooling contractor selected, as. Many homeowners allow their ventilation filters to go months without a cleaning, however in an effort to become more energy efficient, pledge to make the switch on a monthly basis.

The dirtier a filter is, the harder it is for your ventilation system to work properly, causing it. Attic Ventilation Design Strategies for Manufactured Homes melting snow and to vent moisture that moves from the conditioned space into the attic. However, attic ventilation may cause moisture problems in other climates.

For example, in hot, humid climates. The results clearly show that a continuous-exhaust ventilation system is more cost-effective than a furnace-based system. It offers homeowners efficient mechanical ventilation systems, maintains comfort, and reduces operating costs.

These systems can thus allow manufactured homes to be made tighter without creating indoor air quality problems. "Ventilation characterization of a new manufactured house." In Proceedings of 24th AIVC & BETEC Conference, Ventilation, Humidity Control and Energy, pp.

Quarles, Stephen L., and Anton TenWolde. "Attic and crawlspace ventilation: Implications for homes located in the Urban-Wildland Interface.". Energy is one of the most important catalysts in wealth generation, economic growth, and social development in all countries.

Buildings have a significant share in total energy consumed globally; therefore, they have a profound impact upon the environment. Energy is used in every stage of building life cycle (these stages are choice of locality, architectural design, structural systems and.

Pre home walls often have only 2-inch by 2-inch studs ( cm × cm) (new manufactured houses are required to have at least 2-inch by 4-inch [ cm × cm] studs), and roof trusses complicate the process of adding more roof insulation.

Elements of a Mobile Home Ventilation System. Mobile and manufactured homes typically use 2 kinds of vents in their ventilation system: the direct vent, and the auto vent.

Direct Vents or Vent Stack. The most common kind of vent is called a direct vent also referred to as a vent stack, soil stack, or VTR which is short for ‘vent through the.

CRAWL SPACE MOISTURE CONTROL, [PDF] U.S. Department of Energy; Scott, Bob & Lyn M. Bartges, WEATHERIZING MOBILE HOMES” [PDF] Home Energy, July/AugustWebsite:copy provided by the U.S.

DOE at the link cited below U.S. DOE, MOBILE HOME BELLY RETROFIT [PDF] Midwest Weatherization BEST PRACTICES, WEATHERIZATION INSTALLER/TECHNICIAN MOBILE HOMES. Keep excess moisture out of your home.

Moisture is a leading cause of damage in homes, and also of higher energy bills and serious health hazards. See: Home Moisture Guide. Roofs and Attics. The key job of a roof is to keep water out. Roofs can’t ever be a significant source of useful heat gains.

See: Roofs Guide. Top. Walls guide for energy. Moisture in the home isn't always as obvious as water beading on a window. Knowing other places it can accumulate can help you prevent problems. Poor ventilation in an attic can result in condensation, promoting mold growth in the framing elements of the house.

This can affect your home's structural integrity. Energy efficient manufactured homes save money monthly on your bills and make your home more sustainable for the future, thereby extending the life of the house to last you as long as you need it to.

All manufactured homes are subject to the Manufactured Home Construction and Safety Standards or “HUD Code” rather than local building codes. All houses and apartments need an efficient way to exhaust stale, moist indoor air and introduce outdoor air.

Good ventilation makes a house healthier for occupants and protects the building structure from moisture damage (see Fundamentals of Moisture in Houses, HE Nov/Dec '95, p).

Traditionally, home builders have relied on natural ventilation and infiltration provided by random gaps and. Moisture Investigations: Testing of standard practice and energy efficient manufactured homes in the warm humid Southeast USA have found mold due to condensation behind vinyl-covered drywall, primarily due to a combination of air infiltration from HVAC induced negative house pressures (cause by supply duct leakage), and cold-side vapor barriers.

Multifamily buildings permitted prior to are permitted to participate in any of the following programs, as long as the project meets the Eligibility Requirements defined within that program: the ENERGY STAR Certified Homes program, the ENERGY STAR Multifamily High Rise program, or this ENERGY STAR Multifamily New Construction Program.

Clayton Homes, a subsidiary of Warren Buffet’s Berkshire Hathaway, has announced its line of green modular homes. These square-foot eco homes, dubbed “i-houses,” can be purchased online. Ventilation and moisture in new energy-efficient manufactured homes Conference Hadley, D L ; Bailey, S A ; Parker, G B In order to establish a database of infiltration and ventilation characteristics in current practice manufactured housing, a multiyear field testing program was undertaken by the Bonneville Administration beginning in the mid.

Laundry water is filtered and re-used for irrigation. Natural ventilation and thermal comfort is achieved through a heat-recovery ventilator.

Delta T house. Via Nusd Norwich University wanted to create a house that is both energy efficient and affordable. PURPOSE OF VENTILATION All homes need ventilation—the exchange of indoor air with outdoor air—to reduce indoor moisture, odors, and other pollutants.

Contaminants such as formaldehyde, volatile organic compounds (VOCs), and radon that may cause health problems can accumulate in poorly ventilated homes. Inadequate ventilation.

Eligibility. These requirements apply to site-built and modular single family homes, duplexes and townhomes. Low-rise multifamily projects permitted prior to July 1,may also be certified through this program if they meet the eligibility requirements defined in the program requirements, below.A raised foundation of any home is vulnerable to intrusion by pests animals, and the weather.

Skirting creates a deterrent to these elements while helping to control moisture and temperature beneath the structure. This is especially true for mobile homes, which are generally manufactured using thinner floor and wall system materials.Passive house (German: Passivhaus) is a voluntary standard for energy efficiency in a building, which reduces the building's ecological footprint.

It results in ultra-low energy buildings that require little energy for space heating or cooling. A similar standard, MINERGIE-P, is used in Switzerland. The standard is not confined to residential properties; several office buildings, schools.