Tree dripline - Revision history

Designing Buildings at 08:17, 3 November 2020

2020-11-03T08:17:01Z

← Older revision		Revision as of 08:17, 3 November 2020
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	* Trees in conservation areas.		* Trees in conservation areas.

−	[[Category:~~Standards_/_measurements~~]] [[Category:DCN_Standard]] [[Category:Sustainability]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Standard]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Designing Buildings at 17:41, 21 November 2016

2016-11-21T17:41:28Z

← Older revision		Revision as of 17:41, 21 November 2016
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−	[[File:Dripline.jpg]]	+	[[File:Dripline.jpg\|link=File:Dripline.jpg]]

−	The dripline is the guide measurement used to ~~try and~~ prevent unnecessary damage to trees during construction ~~projects~~. It is defined as the outermost circumference ~~area~~ of the tree’s canopy, from ~~where~~ water drips onto the ground. The ‘dripline area’ is taken to include the soil and roots that lie within that circumference.	+	The dripline is the guide measurement used to prevent unnecessary damage to trees during construction works. It is defined as the outermost circumference of the tree’s canopy, from which water drips onto the ground. The ‘dripline area’ is taken to include the soil and roots that lie within that circumference.

−	~~Groundworks near to trees can result in permanent damage to trees, often due to~~ the ~~root system, 50%~~ of ~~which~~ is ~~found in~~ the ~~top 1 ft~~ of ~~soil~~, ~~and over 90% is found in the top 3 ft~~. ~~Therefore~~, the ~~root system extends a considerable distance beyond~~ the ~~tree’s dripline~~.	+	It is crucial for the stability and health of a tree that the dripline area is ‘off limits’ from any construction activity. It may be necessary to erect a fence around the dripline or, if possible, further out around groups of trees so as to prevent their roots from being damaged by construction plant, or by works such as excavation, soil compaction or consolidation. Fences should remain in place until all construction work is complete, including the final grading and smoothing of the site.

−	~~It is crucial for the stability and health of a tree that~~ the dripline ~~area~~ is ~~‘off limits’ from any construction activity~~. ~~It may~~ be ~~necessary to erect a fence around~~ the ~~dripline or, if possible, further out around groups of trees so~~ as to prevent roots from being damaged by construction plant, excavation, soil compaction or consolidation. Fences should remain in place until all construction work is complete, including the final grading and smoothing of the site.	+	If work inside the dripline is unavoidable, only hand tools should be used. Where possible, tunnels should be excavated beneath the root system as opposed to trenching. Other measures that can be adopted to avoid undue damage include:

−	If work inside the dripline is unavoidable, only hand tools should be used. Where possible, tunnels should be excavated beneath the root system as opposed to trenching. Other measures to adopt to avoid undue damage include the following:	+	* Using porous paving materials such as brick or flagstone rather than concrete or asphalt.
−		+	* Not raising the grade of the soil inside the dripline by more than a few inches.
−	* ~~Porous~~ paving materials such as brick or flagstone ~~should be used~~ rather than concrete or asphalt.	+	* Not lowering the grade of the soil inside the dripline by more than 2 inches.
−	* ~~The~~ grade of the soil inside the dripline ~~should not be raised~~ more than a few inches.	+	* Not piling soil or construction materials inside the dripline, even for a short period of time.
−	* ~~The~~ grade of the soil inside the dripline ~~should not be lowered~~ more than 2 inches.	+
−	* ~~Soil~~ or construction materials ~~should never be piled~~ inside the dripline, even for a short period of time.	+

	= Find out more =		= Find out more =
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	* Trees in conservation areas.		* Trees in conservation areas.

−	[[Category:Standards_/_measurements]] [[Category:Sustainability]]	+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]] [[Category:Sustainability]]

Editor: Created page with "File:Dripline.jpg The dripline is the guide measurement used to try and prevent unnecessary damage to trees during construction projects. It is defined as the outermost circ..."

2016-11-21T12:32:46Z

Created page with "File:Dripline.jpg The dripline is the guide measurement used to try and prevent unnecessary damage to trees during construction projects. It is defined as the outermost circ..."

New page

[[File:Dripline.jpg]]

The dripline is the guide measurement used to try and prevent unnecessary damage to trees during construction projects. It is defined as the outermost circumference area of the tree’s canopy, from where water drips onto the ground. The ‘dripline area’ is taken to include the soil and roots that lie within that circumference.

Groundworks near to trees can result in permanent damage to trees, often due to the root system, 50% of which is found in the top 1 ft of soil, and over 90% is found in the top 3 ft. Therefore, the root system extends a considerable distance beyond the tree’s dripline.

It is crucial for the stability and health of a tree that the dripline area is ‘off limits’ from any construction activity. It may be necessary to erect a fence around the dripline or, if possible, further out around groups of trees so as to prevent roots from being damaged by construction plant, excavation, soil compaction or consolidation. Fences should remain in place until all construction work is complete, including the final grading and smoothing of the site.

If work inside the dripline is unavoidable, only hand tools should be used. Where possible, tunnels should be excavated beneath the root system as opposed to trenching. Other measures to adopt to avoid undue damage include the following:

* Porous paving materials such as brick or flagstone should be used rather than concrete or asphalt.
* The grade of the soil inside the dripline should not be raised more than a few inches.
* The grade of the soil inside the dripline should not be lowered more than 2 inches.
* Soil or construction materials should never be piled inside the dripline, even for a short period of time.

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* Ancient woodland.
* Definition of tree for planning purposes.
* Ecological survey.
* Forests.
* The benefits of urban trees.
* Tree hazard survey.
* Tree preservation orders.
* Tree rights.
* Tree root subsidence.
* Trees in conservation areas.

[[Category:Standards_/_measurements]] [[Category:Sustainability]]