Dowel laminated timber DLT - Revision history

Editor at 19:03, 11 April 2023

2023-04-11T19:03:39Z

← Older revision		Revision as of 19:03, 11 April 2023
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		+	[[File:Brettstaple.jpg]]
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	Dowel Laminated Timber (DLT) is also know as brettstapel, literally meaning board stack in German. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements, utilising smaller untreated sawn timber sections, which are mechanically fixed together with timber dowels.		Dowel Laminated Timber (DLT) is also know as brettstapel, literally meaning board stack in German. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements, utilising smaller untreated sawn timber sections, which are mechanically fixed together with timber dowels.

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	[http://www.brettstapel.org/Brettstapel/Home.html http://www.brettstapel.org/Brettstapel/Home.html]		[http://www.brettstapel.org/Brettstapel/Home.html http://www.brettstapel.org/Brettstapel/Home.html]

−	~~[[Category:Articles_needing_more_work]]~~ [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]	+	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]

Editor at 07:02, 11 April 2023

2023-04-11T07:02:56Z

← Older revision		Revision as of 07:02, 11 April 2023
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	In 1999 a German company developed a dowelled wood system (Dübelholz) replacing the nails, this overcame the issues of modification and end-of life because the system became a single material solution. However contraction and expansion from variations in temperature or moisture over time, could potentially cause separation along the dowel axi, compromising strength leading to reintroduction of glue or nails.		In 1999 a German company developed a dowelled wood system (Dübelholz) replacing the nails, this overcame the issues of modification and end-of life because the system became a single material solution. However contraction and expansion from variations in temperature or moisture over time, could potentially cause separation along the dowel axi, compromising strength leading to reintroduction of glue or nails.

−	2001 An Austrian company ~~trying to address this issue~~ developed a system of inserting timber dowels at angles through the posts in ‘V’ and ‘W’ formations~~. This provides a very rigid jointing system which~~ virtually ~~eliminates~~ the potential for movement gaps ~~opening up between the posts ensuring, once again,~~ a 100% timber product. Other manufacturers have different means of dealing with the issue, including driving dowels through rotating layers of boards, though this is perhaps the most innovative.	+	2001 An Austrian company developed a system of inserting timber dowels at angles through the posts in ‘V’ and ‘W’ formations to solve the issue, it virtually eliminated the potential for movement gaps retaining a 100% timber product. Other manufacturers have different means of dealing with the issue, including driving dowels through rotating layers of boards, though this is perhaps the most innovative.

−	~~2010+~~ Today~~, almost 20~~ companies ~~are known to be manufacturing~~ Brettstapel in Austria, Germany, Switzerland and~~, more recently,~~ Norway~~. While most companies only build within fairly close proximity to their factories, some export as far as America~~. The most common form of Brettstapel ~~today~~ is the perpendicular dowel ~~method~~ with the majority of systems not utilising any glue. Two companies are known to still use nails. Brettstapel is now finished to a wide variety of specifications that take into account individual aesthetic, structural, financial and acoustic considerations and companies are continually striving to innovate and make their product a market leader	+	Today many different companies manufacture Brettstapel in Austria, Germany, Switzerland and Norway. The most common form of Brettstapel is the perpendicular dowel with the majority of systems not utilising any glue. DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.
−		+
−	~~Moreover, as~~ DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.	+

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =
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	* Whole life carbon assessment of timber.		* Whole life carbon assessment of timber.
	* Wood around the world.		* Wood around the world.
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		+	= External Links =
		+
		+	[http://www.brettstapel.org/Brettstapel/Home.html http://www.brettstapel.org/Brettstapel/Home.html]

	[[Category:Articles_needing_more_work]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]		[[Category:Articles_needing_more_work]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]

Editor at 06:22, 11 April 2023

2023-04-11T06:22:18Z

← Older revision		Revision as of 06:22, 11 April 2023
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−	Dowel Laminated Timber (DLT) is also know as ~~bettstapel~~, literally meaning board stack. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements ~~and utilises~~ smaller sawn timber sections, which are mechanically fixed together with timber dowels.	+	Dowel Laminated Timber (DLT) is also know as brettstapel, literally meaning board stack in German. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements, utilising smaller untreated sawn timber sections, which are mechanically fixed together with timber dowels.

	In a similar way to traditional green oak frame the dowels are seasoned or dried, whilst the main body of timbers are not, so the have a higher moisture content, the dowels soak the moisture from their wetter surroundings and expand ensuring the dowels connection is strong and tight. In oak framing structure the dowels tend to also be made from oak, in DLT they may be made from beech or any other suitably dried hardwood, in both cases the structure and dowels dry over time creating stable established connections.		In a similar way to traditional green oak frame the dowels are seasoned or dried, whilst the main body of timbers are not, so the have a higher moisture content, the dowels soak the moisture from their wetter surroundings and expand ensuring the dowels connection is strong and tight. In oak framing structure the dowels tend to also be made from oak, in DLT they may be made from beech or any other suitably dried hardwood, in both cases the structure and dowels dry over time creating stable established connections.

−	DLT is said to have been originally conceived by the German engineer Julius Natterer in around the 1970s (hence the reason it is still often referred to as brettstaple).	+	DLT is said to have been originally conceived by the German engineer Julius Natterer in around the 1970s (hence the reason it is still often referred to as brettstaple). At this time the technique consisted of low grade posts of sawn timber laid side by side, continuously nailed together to create solid structural elements, which then evolved to include glues for increased strength and wider spans. Apart from issues around end of life scenarios, the randomly placed nails also caused problems for modifying or cutting any elements.
		+
		+	In 1999 a German company developed a dowelled wood system (Dübelholz) replacing the nails, this overcame the issues of modification and end-of life because the system became a single material solution. However contraction and expansion from variations in temperature or moisture over time, could potentially cause separation along the dowel axi, compromising strength leading to reintroduction of glue or nails.
		+
		+	2001 An Austrian company trying to address this issue developed a system of inserting timber dowels at angles through the posts in ‘V’ and ‘W’ formations. This provides a very rigid jointing system which virtually eliminates the potential for movement gaps opening up between the posts ensuring, once again, a 100% timber product. Other manufacturers have different means of dealing with the issue, including driving dowels through rotating layers of boards, though this is perhaps the most innovative.
		+
		+	2010+ Today, almost 20 companies are known to be manufacturing Brettstapel in Austria, Germany, Switzerland and, more recently, Norway. While most companies only build within fairly close proximity to their factories, some export as far as America. The most common form of Brettstapel today is the perpendicular dowel method with the majority of systems not utilising any glue. Two companies are known to still use nails. Brettstapel is now finished to a wide variety of specifications that take into account individual aesthetic, structural, financial and acoustic considerations and companies are continually striving to innovate and make their product a market leader

	Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.		Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.

Editor at 09:36, 10 April 2023

2023-04-10T09:36:52Z

← Older revision		Revision as of 09:36, 10 April 2023
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	* Wood around the world.		* Wood around the world.

−	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]	+	[[Category:Articles_needing_more_work]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]

Editor at 05:37, 10 April 2023

2023-04-10T05:37:34Z

← Older revision		Revision as of 05:37, 10 April 2023
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	Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.		Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.
		+
		+	= Related articles on Designing Buildings =
		+
		+	* Carpentry.
		+	* Compressive strength of timber lattice columns for low-rise construction.
		+	* Cross laminated timber.
		+	* Nail Laminated timber.
		+	* Engineered bamboo.
		+	* Engineered wood products.
		+	* Facts about forestry.
		+	* Glulam.
		+	* Janka hardness rating scale.
		+	* Laminated veneer lumber LVL.
		+	* Modified wood.
		+	* Nails - a brief history.
		+	* Plywood.
		+	* Predicting service life of timber structures.
		+	* Sustainable timber.
		+	* Testing timber.
		+	* The differences between hardwood and softwood.
		+	* The use of timber in construction.
		+	* Timber frame.
		+	* Timber vs wood.
		+	* Types of timber.
		+	* Types of timber species.
		+	* Whole life carbon assessment of timber.
		+	* Wood around the world.
		+
		+	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]] [[Category:Products_/_components]]

Editor at 16:56, 6 April 2023

2023-04-06T16:56:50Z

← Older revision		Revision as of 16:56, 6 April 2023
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	Dowel Laminated Timber (DLT) is also know as bettstapel, literally meaning board stack. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements and utilises smaller sawn timber sections, which are mechanically fixed together with timber dowels.		Dowel Laminated Timber (DLT) is also know as bettstapel, literally meaning board stack. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements and utilises smaller sawn timber sections, which are mechanically fixed together with timber dowels.

−	In a similar way to traditional green oak frame the dowels are seasoned or dried, whilst the main timbers not, so the have a higher moisture content, the dowels soak the moisture from their wetter surroundings and expand ensuring the dowels connection is strong and tight. In oak framing structure the dowels tend to be also made from oak, in DLT they may be made from beech or any other suitably dried hardwood, in both cases as the structure ~~aswell as the dowel~~ dry over time ~~the connections become~~ established.	+	In a similar way to traditional green oak frame the dowels are seasoned or dried, whilst the main body of timbers are not, so the have a higher moisture content, the dowels soak the moisture from their wetter surroundings and expand ensuring the dowels connection is strong and tight. In oak framing structure the dowels tend to also be made from oak, in DLT they may be made from beech or any other suitably dried hardwood, in both cases the structure and dowels dry over time creating stable established connections.
		+
		+	DLT is said to have been originally conceived by the German engineer Julius Natterer in around the 1970s (hence the reason it is still often referred to as brettstaple).

	Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.		Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.

Editor: Created page with "Dowel Laminated Timber (DLT) is also know as bettstapel, literally meaning board stack. it is a technique of constructing large-scale solid timber panels for use as structural or..."

2023-04-06T16:06:35Z

Created page with "Dowel Laminated Timber (DLT) is also know as bettstapel, literally meaning board stack. it is a technique of constructing large-scale solid timber panels for use as structural or..."

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Dowel Laminated Timber (DLT) is also know as bettstapel, literally meaning board stack. it is a technique of constructing large-scale solid timber panels for use as structural or non-structural elements and utilises smaller sawn timber sections, which are mechanically fixed together with timber dowels.

In a similar way to traditional green oak frame the dowels are seasoned or dried, whilst the main timbers not, so the have a higher moisture content, the dowels soak the moisture from their wetter surroundings and expand ensuring the dowels connection is strong and tight. In oak framing structure the dowels tend to be also made from oak, in DLT they may be made from beech or any other suitably dried hardwood, in both cases as the structure aswell as the dowel dry over time the connections become established.

Moreover, as DLT utilizes locally sourced material and does not include adhesives it can be considered a natural low carbon value engineered product.