Bath Vent Codes - Revision history

Marcin at 01:59, 16 July 2022

2022-07-16T01:59:10Z

← Older revision		Revision as of 01:59, 16 July 2022
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	**Continuous means running 24/7		**Continuous means running 24/7
	**Code does not stipulate bathroom size.		**Code does not stipulate bathroom size.
	*Ducts are very specific - 3" smooth for 50 CFM is required, ~~foil ribbed~~ is not allowed at 50 CFM Table M1506.2 - ~~Not! This~~ is ~~only for whole house systems~~		*Ducts are very specific - 3" smooth for 50 CFM is required, 3" flex is not allowed at 50 CFM Table M1506.2 [https://codes.iccsafe.org/content/IRC2015/chapter-15-exhaust-systems] - but 4" flex is allowed
	**'''Section M1507.2 [https://codes.iccsafe.org/content/IRC2015P3/chapter-15-exhaust-systems] covers local exhaust fans, including bathroom. It stipulates only exhaust rates, not vent material.		**'''Section M1507.2 [https://codes.iccsafe.org/content/IRC2015P3/chapter-15-exhaust-systems] covers local exhaust fans, including bathroom. It stipulates only exhaust rates, not vent material.
	**Does vent material matter?		**Does vent material matter?
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	*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020 or IRC 2016. Must be an older code? Yes, 2011 code, so it's outdated.		*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020 or IRC 2016. Must be an older code? Yes, 2011 code, so it's outdated.
	**Bathroom exhaust has been updated to 50 CFM minimum in 2016 and 2020 IRC editions.		**Bathroom exhaust has been updated to 50 CFM minimum in 2016 and 2020 IRC editions.
			*Note video shows 3" flex duct - appears to be not to code - https://youtu.be/hckMnenDU4s?t=503

Marcin: /* Controversy */

2022-07-16T01:25:33Z

Controversy

← Older revision		Revision as of 01:25, 16 July 2022
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	=Controversy=		=Controversy=
	*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020 or IRC 2016. Must be an older code?		*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020 or IRC 2016. Must be an older code? Yes, 2011 code, so it's outdated.
			**Bathroom exhaust has been updated to 50 CFM minimum in 2016 and 2020 IRC editions.

Marcin: /* Controversy */

2022-07-16T01:24:07Z

Controversy

← Older revision		Revision as of 01:24, 16 July 2022
Line 9:		Line 9:

	=Controversy=		=Controversy=
	*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020.		*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020 or IRC 2016. Must be an older code?

Marcin at 01:22, 16 July 2022

2022-07-16T01:22:24Z

← Older revision		Revision as of 01:22, 16 July 2022
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	**'''Section M1507.2 [https://codes.iccsafe.org/content/IRC2015P3/chapter-15-exhaust-systems] covers local exhaust fans, including bathroom. It stipulates only exhaust rates, not vent material.		**'''Section M1507.2 [https://codes.iccsafe.org/content/IRC2015P3/chapter-15-exhaust-systems] covers local exhaust fans, including bathroom. It stipulates only exhaust rates, not vent material.
	**Does vent material matter?		**Does vent material matter?

			=Controversy=
			*Bathrooms with bath facilities require minimum of 80 CFM here [https://inspectapedia.com/ventilation/Bathroom_Ventilation.php#:~:text=The%20model%20building%20codes%20adopted,vented%20to%20the%20building%20exterior.]. It states pursuant to table M1507.3, which is not found in IRC 2020.

Marcin at 01:18, 16 July 2022

2022-07-16T01:18:34Z

← Older revision		Revision as of 01:18, 16 July 2022
Line 4:		Line 4:
	**Continuous means running 24/7		**Continuous means running 24/7
	**Code does not stipulate bathroom size.		**Code does not stipulate bathroom size.
			*Ducts are very specific - 3" smooth for 50 CFM is required, foil ribbed is not allowed at 50 CFM Table M1506.2 - Not! This is only for whole house systems
			**'''Section M1507.2 [https://codes.iccsafe.org/content/IRC2015P3/chapter-15-exhaust-systems] covers local exhaust fans, including bathroom. It stipulates only exhaust rates, not vent material.
			**Does vent material matter?

Marcin at 01:05, 16 July 2022

2022-07-16T01:05:50Z

← Older revision		Revision as of 01:05, 16 July 2022
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	*Not! The code requirement is a minimum of 20 cfm continuous, or 50 cfm intermittent. IRC - [M1507.4] - [https://codes.iccsafe.org/content/IRC2015/chapter-15-exhaust-systems]		*Not! The code requirement is a minimum of 20 cfm continuous, or 50 cfm intermittent. IRC - [M1507.4] - [https://codes.iccsafe.org/content/IRC2015/chapter-15-exhaust-systems]
	**Continuous means running 24/7		**Continuous means running 24/7
			**Code does not stipulate bathroom size.

Marcin: Created page with "1 cfm per square foot. Not. [https://homeinspectorsecrets.com/bathroom-exhaust-fans/bathroom-fan-venting-code/] Seed Eco-Home Floor 1 has a 5x9 bathroom = 45 sf. *Not! The c..."

2022-07-16T01:05:08Z

Created page with "*1 cfm per square foot. Not. [https://homeinspectorsecrets.com/bathroom-exhaust-fans/bathroom-fan-venting-code/] *Seed Eco-Home Floor 1 has a 5x9 bathroom = 45 sf. *Not! The c..."

New page

*1 cfm per square foot. Not. [https://homeinspectorsecrets.com/bathroom-exhaust-fans/bathroom-fan-venting-code/]
*Seed Eco-Home Floor 1 has a 5x9 bathroom = 45 sf.
*Not! The code requirement is a minimum of 20 cfm continuous, or 50 cfm intermittent. IRC - [M1507.4] - [https://codes.iccsafe.org/content/IRC2015/chapter-15-exhaust-systems]
**Continuous means running 24/7

Bath Vent Codes - Revision history

Marcin at 01:59, 16 July 2022

Marcin: /* Controversy */

Marcin: /* Controversy */

Marcin at 01:22, 16 July 2022

Marcin at 01:18, 16 July 2022

Marcin at 01:05, 16 July 2022

Marcin: Created page with "*1 cfm per square foot. Not. [https://homeinspectorsecrets.com/bathroom-exhaust-fans/bathroom-fan-venting-code/] *Seed Eco-Home Floor 1 has a 5x9 bathroom = 45 sf. *Not! The c..."

Marcin: Created page with "1 cfm per square foot. Not. [https://homeinspectorsecrets.com/bathroom-exhaust-fans/bathroom-fan-venting-code/] Seed Eco-Home Floor 1 has a 5x9 bathroom = 45 sf. *Not! The c..."