Primary System (Siphonic system) - Revision history

Joceil.infante at 01:39, 3 October 2017

2017-10-03T01:39:36Z

Joceil.infante at 01:36, 3 October 2017

2017-10-03T01:36:42Z

Joceil.infante at 03:10, 26 September 2017

2017-09-26T03:10:06Z

Joceil.infante at 03:09, 26 September 2017

2017-09-26T03:09:47Z

Joceil.infante at 03:09, 26 September 2017

2017-09-26T03:09:15Z

Joceil.infante: Created page with "As a safety precaution, it is recommended to provide overflow systems to gutters or roofs where risk of overflow (due to blockage or extreme rainfall) cannot be tolerated. O..."

2017-09-26T03:07:28Z

Created page with "As a safety precaution, it is recommended to provide overflow systems to gutters or roofs where risk of overflow (due to blockage or extreme rainfall) cannot be tolerated. O..."

New page

As a safety precaution, it is recommended to provide overflow systems to gutters or roofs where risk of overflow (due to blockage or extreme rainfall) cannot be tolerated.

Overflow systems can generally be of 2 types;
#Overflow weirs
#Secondary piped systems.

In the case of roofs with secondary piped overflow systems, the primary system refers to the main system that is designed to work most of the time while the secondary system acts as a backup for either blockage or for extreme rainfall that exceeds the design capacity of the primary system.

Primary and secondary siphonic systems should operate completely independently of each other. The primary system can be designed to deal with all lower return period of storms up to specified rainfall intensity. Secondary system will deal with more intense storms up to the maximum design intensity for the scheme. This can be achieved by preventing flow from entering the outlets of the secondary system until water levels in the gutter or flat roof exceed a certain limit.<ref> BS 8490:2007 Guide to siphonic roof drainage system </ref>

== References ==

@@ Line 5: / Line 5: @@
 #Secondary pipe systems.
-In the case of roofs with secondary piped overflow systems, the primary system refers to the main system that is designed to work most of the time while the secondary system acts as a backup for either blockage or for extreme rainfall that exceeds the design capacity of the primary system.
+In the case of roofs with secondary pipe overflow systems, the primary system refers to the main system that is designed to work most of the time while the secondary system acts as a backup for either blockage or for extreme rainfall that exceeds the design capacity of the primary system.
 '''Primary and secondary siphonic systems''' should operate completely independently of each other. The primary system can be designed to deal with all lower return period of storms up to specified rainfall intensity. Secondary system will deal with more intense storms up to the maximum design intensity for the scheme. This can be achieved by preventing flow from entering the outlets of the secondary system until water levels in the gutter or flat roof exceed a certain limit.<ref> BS 8490:2007 Guide to siphonic roof drainage system </ref>

← Older revision		Revision as of 03:09, 26 September 2017
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	== References ==		== References ==
		+
		+	[[Category:Siphonic Drainage System]]

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 [[Overflow]] systems can generally be of 2 types;
 #Overflow weirs
-#Secondary piped systems.
+#Secondary pipe systems.
 In the case of roofs with secondary piped overflow systems, the primary system refers to the main system that is designed to work most of the time while the secondary system acts as a backup for either blockage or for extreme rainfall that exceeds the design capacity of the primary system.

@@ Line 7: / Line 7: @@
 In the case of roofs with secondary piped overflow systems, the primary system refers to the main system that is designed to work most of the time while the secondary system acts as a backup for either blockage or for extreme rainfall that exceeds the design capacity of the primary system.
-Primary and secondary siphonic systems should operate completely independently of each other. The primary system can be designed to deal with all lower return period of storms up to specified rainfall intensity. Secondary system will deal with more intense storms up to the maximum design intensity for the scheme. This can be achieved by preventing flow from entering the outlets of the secondary system until water levels in the gutter or flat roof exceed a certain limit.<ref> BS 8490:2007 Guide to siphonic roof drainage system </ref>
+'''Primary and secondary siphonic systems''' should operate completely independently of each other. The primary system can be designed to deal with all lower return period of storms up to specified rainfall intensity. Secondary system will deal with more intense storms up to the maximum design intensity for the scheme. This can be achieved by preventing flow from entering the outlets of the secondary system until water levels in the gutter or flat roof exceed a certain limit.<ref> BS 8490:2007 Guide to siphonic roof drainage system </ref>
 == References ==
 [[Category:Siphonic Drainage System]]