Alder wood in construction - Revision history

Editor at 13:19, 4 October 2022

2022-10-04T13:19:59Z

← Older revision		Revision as of 13:19, 4 October 2022
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	Alder grows well in moist ground near water as it thrives in damp, cool environments. The roots can help prevent soil erosion near streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that also provide an early source of pollen for bees.		Alder grows well in moist ground near water as it thrives in damp, cool environments. The roots can help prevent soil erosion near streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that also provide an early source of pollen for bees.
		+
		+	The Grey Alder (Alnus incana) is planted in gardens and for shelter and can reach heights of up to 80ft. Although it prefers moist ground it does not tolerate water logging in the same way as the Common Alder. It is a hardier species, often used on reclaimed industrial land. This species produces highly ornamental catkins before the Common Alder and before its first leaf flush.
		+
		+	According to ancient belief / superstition, evil lurked in the Common Alder, because its wood appears to bleed when cut, it was feared, suggesting the tree was a malign spirit embodied.

	= Forestry products =		= Forestry products =

Designing Buildings at 10:46, 8 July 2022

2022-07-08T10:46:17Z

← Older revision		Revision as of 10:46, 8 July 2022
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	Specifications, photographs and more detailed descriptions are also available from:		Specifications, photographs and more detailed descriptions are also available from:

−	[https://www.wood-database.com/european-alder/ https://www.wood-database.com/european-alder/] (as above)	+	* [https://www.wood-database.com/european-alder/ https://www.wood-database.com/european-alder/] (as above)
−		+	* [https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/alder/ https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/alder/]
−	[https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/alder/ https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/alder/]	+

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

	* A guide to the use of urban timber FB 50.		* A guide to the use of urban timber FB 50.
−	* Biomaterial.
	* Birch wood.		* Birch wood.
	* Carpentry.		* Carpentry.
	* Cedar.		* Cedar.
−	* Confederation of Timber Industries.
−	* Cross-laminated timber.
−	* Decking boards.
−	* Facts about forestry.
	* Forest Stewardship Council.		* Forest Stewardship Council.
−	* Hammerbeam roof.
	* Hardwood.		* Hardwood.
−	* Janka hardness rating scale.
−	* Laminated veneer lumber LVL.
−	* Legally harvested and traded timber.
	* Lime wood.		* Lime wood.
−	* Modified wood.
−	* Physical Properties of Wood.
−	* Plywood.
−	* Predicting service life of timber structures.
	* Programme for the Endorsement of Forest Certification.		* Programme for the Endorsement of Forest Certification.
−	* Properties of mahogany.
−	* Recognising wood rot and insect damage in buildings.
	* Softwood.		* Softwood.
−	* Sustainable timber.
−	* Testing timber.
−	* The differences between hardwood and softwood.
−
−	* Timber framed buildings and fire.
−	* Timber preservation.
	* Timber vs wood.		* Timber vs wood.
	* Types of timber.		* Types of timber.
−	* Wainscoting.
−	* Whole life carbon assessment of timber.
−	* Wood and educational buildings.
−	* Wood around the world.
−	* Wood, embodied carbon and operational carbon.
−	* Wrot timber.

	[[Category:DCN_Commentary]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]]		[[Category:DCN_Commentary]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]]

Designing Buildings: moved Alder wood to Alder wood in construction

2022-07-08T10:44:41Z

moved Alder wood to Alder wood in construction

← Older revision

Revision as of 10:44, 8 July 2022

Designing Buildings at 10:43, 8 July 2022

2022-07-08T10:43:10Z

← Older revision		Revision as of 10:43, 8 July 2022
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	Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.		Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.

−	It is native to almost the whole of continental Europe (~~except~~ far north and south), with over 30 species in the genus Alnus it can also be found in the Americas~~, the~~ species A. glutinosa is the only one in the genus that is native to the UK. Alders are part of the birch family (Betulaceae), but a different genera, Alnus whilst birches are of the genus Betula. It is monoecious, which means both male and female flowers or catkins are found on the same tree. Male catkins turn yellow whilst female catkins are a green, oval shape that resemble woody tiny, cone-like fruits after pollination.	+	It is native to almost the whole of continental Europe (other than the far north and south), with over 30 species in the genus Alnus. It can also be found in the Americas. The species A. glutinosa is the only one in the genus that is native to the UK.

−	Alder grows well in moist ground, near water as it thrives in damp, cool environments~~, the~~ roots can help prevent soil erosion near to streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that provide an early source of pollen for bees.	+	Alders are part of the birch family (Betulaceae), but a different genera, Alnus whilst birches are of the genus Betula. It is monoecious, which means both male and female flowers or catkins are found on the same tree. Male catkins turn yellow whilst female catkins are a green, oval shape that resembles woody, tiny, cone-like fruits after pollination.
		+
		+	Alder grows well in moist ground near water as it thrives in damp, cool environments. The roots can help prevent soil erosion near streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that also provide an early source of pollen for bees.

	= Forestry products =		= Forestry products =

−	As a forestry crop it has the advantage of the nitrogen-fixing bacterium Frankia alni at it roots, so can be grown in wasteland areas with poor soils, able to improve soil quality as a pioneer species. All alders have this ability with certain species such as the Italian Alder (Alnus cordata) being particularly effective. Alder also coppices well and is used to produce charcoal~~, whilst charcoaled~~ Alder Buckthorn (Frangula alnus) was historically used in the production of gunpowder.	+	As a forestry crop it has the advantage of the nitrogen-fixing bacterium Frankia alni at its roots, so it can be grown in wasteland areas with poor soils, able to improve soil quality as a pioneer species. All alders have this ability, with certain species such as the Italian Alder (Alnus cordata) being particularly effective. Alder also coppices well and is used to produce charcoal. Charcoaled Alder Buckthorn (Frangula alnus) was historically used in the production of gunpowder.

−	As a wood it is soft, porous and light brown in colour becoming more red with age, it is non-durable due to poor resistance to decay, however, durable if kept wet, as it can withstand rotting in water. As such it has historically been used for boat construction, in sluice gates and water pipes. Today, alder wood is mainly used to make timber veneers, pulp and plywood although some interior furniture may be made from alder as it is relatively easy to work with and has an attractive finish. Traditionally, alder branches might have been cut and placed inside cupboards to deter woodworm from laying eggs in the timber of the cupboard.	+	As a wood it is soft, porous and light brown in colour becoming more red with age, it is non-durable due to poor resistance to decay, however, it can be durable if kept wet, as it can withstand rotting in water. As such it has historically been used for boat construction, in sluice gates and water pipes. Today, alder wood is mainly used to make timber veneers, pulp and plywood, although some interior furniture may be made from alder as it is relatively easy to work with and has an attractive finish. Traditionally, alder branches might have been cut and placed inside cupboards to deter woodworm from laying eggs in the timber of the cupboard.

	= Specification =		= Specification =

Editor at 14:12, 1 July 2022

2022-07-01T14:12:09Z

← Older revision		Revision as of 14:12, 1 July 2022
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	{\|		{\|
−	\| [[File:~~Alder mix~~.jpg]]	+	\| [[File:Alder_mix.jpg\|link=File:Alder_mix.jpg]]
	\|}		\|}
		+
		+	= Introduction =

	Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.		Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.

−	~~Alder~~ is native to almost the whole of continental Europe (except far north and south), with over 30 species in the genus Alnus it can also be found in the Americas, the species A. glutinosa is the only one in the genus that is native to the UK. Alders are part of the birch family (Betulaceae), but a different genera, Alnus whilst birches are of the genus Betula. It is monoecious, which means both male and female flowers or catkins are found on the same tree. Male catkins turn yellow whilst female catkins are a green, oval shape that resemble woody tiny, cone-like fruits after pollination.	+	It is native to almost the whole of continental Europe (except far north and south), with over 30 species in the genus Alnus it can also be found in the Americas, the species A. glutinosa is the only one in the genus that is native to the UK. Alders are part of the birch family (Betulaceae), but a different genera, Alnus whilst birches are of the genus Betula. It is monoecious, which means both male and female flowers or catkins are found on the same tree. Male catkins turn yellow whilst female catkins are a green, oval shape that resemble woody tiny, cone-like fruits after pollination.

	Alder grows well in moist ground, near water as it thrives in damp, cool environments, the roots can help prevent soil erosion near to streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that provide an early source of pollen for bees.		Alder grows well in moist ground, near water as it thrives in damp, cool environments, the roots can help prevent soil erosion near to streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that provide an early source of pollen for bees.

−	As a forestry crop it has the advantage of the nitrogen-fixing bacterium Frankia alni at it roots, so can be grown in wasteland areas with poor soils, able to improve soil quality as a pioneer species. All ~~aldershav~~ this ability with certain species such as the Italian Alder (Alnus cordata) being particularly effective. Alder also coppices well and is used to produce charcoal, whilst charcoaled Alder Buckthorn (Frangula alnus) was historically used in the production of gunpowder.	+	= Forestry products =
		+
		+	As a forestry crop it has the advantage of the nitrogen-fixing bacterium Frankia alni at it roots, so can be grown in wasteland areas with poor soils, able to improve soil quality as a pioneer species. All alders have this ability with certain species such as the Italian Alder (Alnus cordata) being particularly effective. Alder also coppices well and is used to produce charcoal, whilst charcoaled Alder Buckthorn (Frangula alnus) was historically used in the production of gunpowder.
		+
		+	As a wood it is soft, porous and light brown in colour becoming more red with age, it is non-durable due to poor resistance to decay, however, durable if kept wet, as it can withstand rotting in water. As such it has historically been used for boat construction, in sluice gates and water pipes. Today, alder wood is mainly used to make timber veneers, pulp and plywood although some interior furniture may be made from alder as it is relatively easy to work with and has an attractive finish. Traditionally, alder branches might have been cut and placed inside cupboards to deter woodworm from laying eggs in the timber of the cupboard.
		+
		+	= Specification =
		+
		+	* Common Name(s): European alder, black alder, common alder.
		+	* Scientific Name: Alnus glutinosa
		+	* Distribution: Western Europe
		+	* Tree Size: 65-80 ft (20-25 m) tall, 1-2 ft (.3-.6 m) trunk diameter
		+	* Average Dried Weight: 33.3 lbs/ft3 (535 kg/m3)
		+	* Specific Gravity (Basic, 12% MC): .41, 0.53
		+	* Janka Hardness: 650 lbf (2,890 N)
		+	* Modulus of Rupture: 13,260 lbf/in2 (91.4 MPa)
		+	* Elastic Modulus: 1,596,000 lbf/in2 (11.01 GPa)
		+	* Crushing Strength: 5,770 lbf/in2 (39.8 MPa)
		+	* Shrinkage: Radial: 3.6%, Tangential: 7.0%, Volumetric: 11.0%, T/R Ratio: 1.9
		+
		+	= External links =
		+
		+	Specifications, photographs and more detailed descriptions are also available from:
		+
		+	[https://www.wood-database.com/european-alder/ https://www.wood-database.com/european-alder/] (as above)
		+
		+	[https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/alder/ https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/alder/]
		+
		+	= Related articles on Designing Buildings =
		+
		+	* A guide to the use of urban timber FB 50.
		+	* Biomaterial.
		+	* Birch wood.
		+	* Carpentry.
		+	* Cedar.
		+	* Confederation of Timber Industries.
		+	* Cross-laminated timber.
		+	* Decking boards.
		+	* Facts about forestry.
		+	* Forest Stewardship Council.
		+	* Hammerbeam roof.
		+	* Hardwood.
		+	* Janka hardness rating scale.
		+	* Laminated veneer lumber LVL.
		+	* Legally harvested and traded timber.
		+	* Lime wood.
		+	* Modified wood.
		+	* Physical Properties of Wood.
		+	* Plywood.
		+	* Predicting service life of timber structures.
		+	* Programme for the Endorsement of Forest Certification.
		+	* Properties of mahogany.
		+	* Recognising wood rot and insect damage in buildings.
		+	* Softwood.
		+	* Sustainable timber.
		+	* Testing timber.
		+	* The differences between hardwood and softwood.
		+
		+	* Timber framed buildings and fire.
		+	* Timber preservation.
		+	* Timber vs wood.
		+	* Types of timber.
		+	* Wainscoting.
		+	* Whole life carbon assessment of timber.
		+	* Wood and educational buildings.
		+	* Wood around the world.
		+	* Wood, embodied carbon and operational carbon.
		+	* Wrot timber.

−	~~As a wood~~	+	[[Category:DCN_Commentary]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]]

Editor at 12:45, 1 July 2022

2022-07-01T12:45:35Z

← Older revision		Revision as of 12:45, 1 July 2022
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		+	{\|
		+	\| [[File:Alder mix.jpg]]
		+	\|}
		+
	Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.		Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.

Editor at 12:32, 1 July 2022

2022-07-01T12:32:15Z

← Older revision		Revision as of 12:32, 1 July 2022
Line 1:		Line 1:
−	Alder (Alnus glutinosa) grown in the UK, and Europe, used for minor utility products, sometimes available as beams.	+	Alder (Alnus glutinosa) is grown in the UK, and Europe, used for minor utility products, sometimes available as beams.

−	Alder is native to almost the whole of continental Europe (except far north and south), with over 30 species in the genus ~~Alns~~ it can also be found in the Americas, the species A. glutinosa is the only one in the genus that is native to the UK.	+	Alder is native to almost the whole of continental Europe (except far north and south), with over 30 species in the genus Alnus it can also be found in the Americas, the species A. glutinosa is the only one in the genus that is native to the UK. Alders are part of the birch family (Betulaceae), but a different genera, Alnus whilst birches are of the genus Betula. It is monoecious, which means both male and female flowers or catkins are found on the same tree. Male catkins turn yellow whilst female catkins are a green, oval shape that resemble woody tiny, cone-like fruits after pollination.

−	It grows well in moist ground near water as it thrives in damp, cool environments ~~and~~ the roots can help prevent soil erosion ~~nearby~~ streams, ~~also~~ growing in marshes and wet woodlands~~, it~~ can ~~aswell be found~~ in drier areas on the edges of mixed woodland., A. ~~glutinosa~~ is ~~the only species~~ in the ~~genus native to~~ the UK.	+	Alder grows well in moist ground, near water as it thrives in damp, cool environments, the roots can help prevent soil erosion near to streams, growing in marshes and wet woodlands. It can also grow in drier areas on the edges of mixed woodland, as it grows well seeded on bare ground. In wet habitats alder combined with moss, lichen and funghi, is important for moths, caterpillars, butterflies, and otters living in the roots, whilst the birds siskin, redpoll and goldfinch feed on the catkins that provide an early source of pollen for bees.

−	~~It can also grow in drier locations and sometimes occurs in mixed woodland and on forest edges. It grows well from seed and will quickly colonise bare ground. Because~~ of ~~its association with~~ the nitrogen-fixing bacterium Frankia alni, it can ~~grow~~ in ~~nutrient-~~poor soils ~~where few other trees thrive~~.	+	As a forestry crop it has the advantage of the nitrogen-fixing bacterium Frankia alni at it roots, so can be grown in wasteland areas with poor soils, able to improve soil quality as a pioneer species. All aldershav this ability with certain species such as the Italian Alder (Alnus cordata) being particularly effective. Alder also coppices well and is used to produce charcoal, whilst charcoaled Alder Buckthorn (Frangula alnus) was historically used in the production of gunpowder.
		+
		+	As a wood

Editor: Created page with "Alder (Alnus glutinosa) grown in the UK, and Europe, used for minor utility products, sometimes available as beams. Alder is native to almost the whole of continental Europe (ex..."

2022-07-01T11:04:20Z

Created page with "Alder (Alnus glutinosa) grown in the UK, and Europe, used for minor utility products, sometimes available as beams. Alder is native to almost the whole of continental Europe (ex..."

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Alder (Alnus glutinosa) grown in the UK, and Europe, used for minor utility products, sometimes available as beams.

Alder is native to almost the whole of continental Europe (except far north and south), with over 30 species in the genus Alns it can also be found in the Americas, the species A. glutinosa is the only one in the genus that is native to the UK.

It grows well in moist ground near water as it thrives in damp, cool environments and the roots can help prevent soil erosion nearby streams, also growing in marshes and wet woodlands, it can aswell be found in drier areas on the edges of mixed woodland., A. glutinosa is the only species in the genus native to the UK.

It can also grow in drier locations and sometimes occurs in mixed woodland and on forest edges. It grows well from seed and will quickly colonise bare ground. Because of its association with the nitrogen-fixing bacterium Frankia alni, it can grow in nutrient-poor soils where few other trees thrive.