bathroom ventilation
Content
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
December Healthy Home Calendar
HOME VENTILATING INSTITUTE BY THE HOME VENTILATING INSTITUTE (HVI) CATEGORIES: BUILDING, HEALTH & SAFETY, AIR TAGGED: AIR CHANGES PER HOUR, BATHROOM, DAMPNESS, EXHAUST FAN, FAN, FRESH AIR, GREEN BUILDING, HEALTHY HOME, HOME COMFORT, HOME VENTILATING INSTITUTE More athroom ventilation is key to maintaining healthy indoor air quality and preventing moisture buildup that can lead to mold growth. How do you know whether or not your bathroom's ventilation system is adequate? article continues below ↓
The following are guidelines for ventilating both large and smaller bathrooms using intermittent or continuous ventilation. Small rooms: For bathrooms up to 100 square feet in area, HVI recommends that an exhaust fan
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12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
provide 1 CFM per square foot (approximately eight air changes per hour) to properly ventilate the bathroom. Example Bathroom is 8'x5' (with 8' ceilings). Multiply 8 x 5 = 40 ft. Bathroom area is 40 sq. ft. At 1 cfm per square foot the minimum recommendation is a fan rated at 40 cfm. Larger rooms: For bathrooms greater than 100 square feet in area, HVI recommends a ventilation rate based on the number and type of fixtures present, according to the following table: Toilet 50 cfm Shower 50 cfm Bath Tub 50 cfm Jetted Tub 100 cfm Note: Enclosed toilet rooms must have an operable window or a fan for ventilation. Example: The bathroom is 20'x12'. There is a tub (without jets), a shower enclosure and an enclosed toilet. Each fixture requires 50 cfm: Tub Shower Toilet Total 50 cfm 50 cfm 50 cfm 150 cfm
You have 2 options: 1. Install a 50 cfm fan over the tub, one in the shower and in the water closet. This method is very effective and will provide ventilation where you need it, when it's needed. 2. Another option is to install one 150 cfm fan. The air will then be pulled through the entire room and exhausted at a central location. Location of exhaust points: Typically the exhaust points shall be located over or near the shower or tub and in an enclosed water closet.
2 of 5
12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
With windows closed, exhausted air will be replaced by makeup air from adjacent rooms or forced air system registers. HVI recommends that the exhaust points be located away from the supply, thereby pulling the supply air through the room. Bathroom doors need to be undercut to allow makeup air to enter the room. Duration of ventilation: HVI recommends that the fan be left on for 20 minutes after use of the bathroom. A timer is a good solution, allowing the fan to turn off automatically at the proper time. For steam showers it is best to have a separate fan in the steam room that can be turned on after use. Continuous ventilation: Alternatively, ventilation may also be provided on a continuous basis at other rates. This may complement the use of fans to provide the HVI recommended rates. Disclaimer ↓
Bathroom Ventilation Guidelines: Created on August 2nd, 2009. Last Modified on November 19th, 2012
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About The Home Ventilating Institute (HVI)
The Home Ventilating Institute (HVI), founded in 1955, is a nonprofit association of the manufacturers of home ventilating products. Through its Certified Ratings Programs, HVI provides a voluntary means for residential ventilation manufacturers to report comparable and creditable product performance information based upon uniformly applied testing standards and procedures performed by independent laboratories. Certified performance ratings include airflow, sound and energy. Today, HVI represents manufacturers from the United States, Canada, Asia and Europe, producing the majority of the residential ventilation products sold in North America. HVI certification is a prerequisite for obtaining the ENERGY STAR® rating for mechanical ventilation equipment. For more information, contact HVI at 3317 E. Bell Rd., Ste. 101122 Phoenix, AZ 85032 USA. Telephone: 855.HVI.VENT (855.484.8368); fax: 480.559.9722. Visit the website at www.hvi.org.
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12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
Information provided by The Healthy House Institute is designed to support, not to replace the relationship between patient/physician or other qualified healthcare provider.
Ads, ad links, products and content on this page are not necessarily endorsed by these organizations.
Asthma Asthma & and Allergy Allergy Friendly™ Foundation Certification of America Program Helping people with asthma and allergies. Find Healthier GREENGUARD Product Certified Buying Products Guide
Find CRI Certified Vacuums & Carpet Cleaning Products
Find Green Seal Certified Products
EPA's ENERGY Design for STAR the Environment ENERGY DfE Helps STAR Consumers Helps Find Safer, Consumers Greener Be More Products Energy Home Efficient Ventilating Make Your Institute Home Energy Free Efficient Home Ventilation Guide
Find Certified Mold, Smoke and WaterDamage Restorers
NCHH: Creating Healthy and Safe Homes for Children
National National Environmental Healthy Health Homes Association Conference Learn About Healthy Homes Engage With Public Health & Housing Experts
NSF International Free Consumer Fact Kits from NSF
Sierra Club Green Home:
Water Quality Association
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Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
Home Health
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http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
December Healthy Home Calendar
HOME VENTILATING INSTITUTE BY THE HOME VENTILATING INSTITUTE (HVI) CATEGORIES: BUILDING, HEALTH & SAFETY, AIR TAGGED: AIR CHANGES PER HOUR, BATHROOM, DAMPNESS, EXHAUST FAN, FAN, FRESH AIR, GREEN BUILDING, HEALTHY HOME, HOME COMFORT, HOME VENTILATING INSTITUTE More athroom ventilation is key to maintaining healthy indoor air quality and preventing moisture buildup that can lead to mold growth. How do you know whether or not your bathroom's ventilation system is adequate? article continues below ↓
The following are guidelines for ventilating both large and smaller bathrooms using intermittent or continuous ventilation. Small rooms: For bathrooms up to 100 square feet in area, HVI recommends that an exhaust fan
1 of 5
12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
provide 1 CFM per square foot (approximately eight air changes per hour) to properly ventilate the bathroom. Example Bathroom is 8'x5' (with 8' ceilings). Multiply 8 x 5 = 40 ft. Bathroom area is 40 sq. ft. At 1 cfm per square foot the minimum recommendation is a fan rated at 40 cfm. Larger rooms: For bathrooms greater than 100 square feet in area, HVI recommends a ventilation rate based on the number and type of fixtures present, according to the following table: Toilet 50 cfm Shower 50 cfm Bath Tub 50 cfm Jetted Tub 100 cfm Note: Enclosed toilet rooms must have an operable window or a fan for ventilation. Example: The bathroom is 20'x12'. There is a tub (without jets), a shower enclosure and an enclosed toilet. Each fixture requires 50 cfm: Tub Shower Toilet Total 50 cfm 50 cfm 50 cfm 150 cfm
You have 2 options: 1. Install a 50 cfm fan over the tub, one in the shower and in the water closet. This method is very effective and will provide ventilation where you need it, when it's needed. 2. Another option is to install one 150 cfm fan. The air will then be pulled through the entire room and exhausted at a central location. Location of exhaust points: Typically the exhaust points shall be located over or near the shower or tub and in an enclosed water closet.
2 of 5
12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
With windows closed, exhausted air will be replaced by makeup air from adjacent rooms or forced air system registers. HVI recommends that the exhaust points be located away from the supply, thereby pulling the supply air through the room. Bathroom doors need to be undercut to allow makeup air to enter the room. Duration of ventilation: HVI recommends that the fan be left on for 20 minutes after use of the bathroom. A timer is a good solution, allowing the fan to turn off automatically at the proper time. For steam showers it is best to have a separate fan in the steam room that can be turned on after use. Continuous ventilation: Alternatively, ventilation may also be provided on a continuous basis at other rates. This may complement the use of fans to provide the HVI recommended rates. Disclaimer ↓
Bathroom Ventilation Guidelines: Created on August 2nd, 2009. Last Modified on November 19th, 2012
Duct Leakage Tester
www.millionagencies.com Positive & Negative Duct Accreditation System
We do not strictly control Google ad content. If you believe any Google ad is inappropriate, please email us directly here.
About The Home Ventilating Institute (HVI)
The Home Ventilating Institute (HVI), founded in 1955, is a nonprofit association of the manufacturers of home ventilating products. Through its Certified Ratings Programs, HVI provides a voluntary means for residential ventilation manufacturers to report comparable and creditable product performance information based upon uniformly applied testing standards and procedures performed by independent laboratories. Certified performance ratings include airflow, sound and energy. Today, HVI represents manufacturers from the United States, Canada, Asia and Europe, producing the majority of the residential ventilation products sold in North America. HVI certification is a prerequisite for obtaining the ENERGY STAR® rating for mechanical ventilation equipment. For more information, contact HVI at 3317 E. Bell Rd., Ste. 101122 Phoenix, AZ 85032 USA. Telephone: 855.HVI.VENT (855.484.8368); fax: 480.559.9722. Visit the website at www.hvi.org.
3 of 5
12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
Information provided by The Healthy House Institute is designed to support, not to replace the relationship between patient/physician or other qualified healthcare provider.
Ads, ad links, products and content on this page are not necessarily endorsed by these organizations.
Asthma Asthma & and Allergy Allergy Friendly™ Foundation Certification of America Program Helping people with asthma and allergies. Find Healthier GREENGUARD Product Certified Buying Products Guide
Find CRI Certified Vacuums & Carpet Cleaning Products
Find Green Seal Certified Products
EPA's ENERGY Design for STAR the Environment ENERGY DfE Helps STAR Consumers Helps Find Safer, Consumers Greener Be More Products Energy Home Efficient Ventilating Make Your Institute Home Energy Free Efficient Home Ventilation Guide
Find Certified Mold, Smoke and WaterDamage Restorers
NCHH: Creating Healthy and Safe Homes for Children
National National Environmental Healthy Health Homes Association Conference Learn About Healthy Homes Engage With Public Health & Housing Experts
NSF International Free Consumer Fact Kits from NSF
Sierra Club Green Home:
Water Quality Association
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12/25/2012 12:58 PM
Home Ventilating Institute: Bathroom Ventilation Guidelines - HealthyHou...
http://www.healthyhouseinstitute.com/a_1045-Bathroom_Ventilation_Guid...
Home Health
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