Sarking in roof constructions - Revision history

Designing Buildings at 08:41, 1 November 2020

2020-11-01T08:41:06Z

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	* Vapour barrier.		* Vapour barrier.

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Designing Buildings: moved Sarking to Sarking in roof constructions

2018-06-16T08:40:29Z

moved Sarking to Sarking in roof constructions

← Older revision

Revision as of 08:40, 16 June 2018

Editor at 09:05, 24 April 2018

2018-04-24T09:05:44Z

← Older revision		Revision as of 09:05, 24 April 2018
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	* Roof tiles or other covering.		* Roof tiles or other covering.

−	The term 'sarking' can also refer to a pliable membrane such as a layer of felt, polystyrene or reflective ~~soil~~, that insulates or reflects heat and can provide extra weather resistance. It can act as a protective second skin for the roof by helping to prevent storm-driven rain penetrating into the roof cavity. By helping to reduce draughts, it can also limit dust entering the building through gaps around downlights and vents, and help improve thermal performance.	+	The term 'sarking' can also refer to a pliable membrane such as a layer of felt, polystyrene or reflective foil, that insulates or reflects heat and can provide extra weather resistance. It can act as a protective second skin for the roof by helping to prevent storm-driven rain penetrating into the roof cavity. By helping to reduce draughts, it can also limit dust entering the building through gaps around downlights and vents, and help improve thermal performance.

	= Find out more =		= Find out more =
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	* Vapour barrier.		* Vapour barrier.

−	[[Category:Construction_techniques]] [[Category:Products_/_components]]	+	[[Category:Construction_techniques]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Designing Buildings at 09:04, 24 April 2018

2018-04-24T09:04:34Z

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−	The term ‘sarking’ ~~has~~ different meanings relating to roof construction.	+	The term ‘sarking’ can have a number of different meanings relating to roof construction.

−	Sarking boards are softwood boards that are attached to the rafters of a pitched roof, ~~under~~ the roof-covering ~~materials~~. They are typically around 150 mm wide and are used to provide additional support and strength to the overall structure.	+	Sarking boards are typically softwood boards that are attached to the rafters of a pitched roof, below the roof-covering. They are typically around 150 mm wide and are used to provide additional support and strength to the overall structure.

−	They are used on buildings that can be exposed to high winds, ~~torrential~~ rain or other extreme weather conditions. ~~(They~~ are more common in Scotland than in England ~~and~~ Wales.) Boards tend to only be specified for new-build, not refurbishments, as this would entail a complete re-roofing with coverings being removed and replaced.	+	They are used on buildings that can be exposed to high winds, heavy rain or other extreme weather conditions. As a result, they are more common in Scotland than in England or Wales. Boards tend to only be specified for new-build, not refurbishments, as this would entail a complete re-roofing with coverings being removed and replaced, and potentially exceeding the load-carrying capacity of the roof structure.

	A typical roof build-up that contains sarking is as follows (from the bottom):		A typical roof build-up that contains sarking is as follows (from the bottom):
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	* Roof tiles or other covering.		* Roof tiles or other covering.

−	~~Sarking~~ can also refer to a pliable membrane such as a layer of felt, polystyrene or reflective soil, that insulates or reflects heat and can provide extra ~~leakage~~ resistance. It can act as a protective second skin for the roof by helping to ~~reduce~~ storm-driven rain into the roof cavity ~~which can then lead to mould growth, ceiling staining, and so on~~. By helping to reduce draughts, it can also limit dust entering the building through gaps around downlights and vents, and help improve thermal performance.	+	The term 'sarking' can also refer to a pliable membrane such as a layer of felt, polystyrene or reflective soil, that insulates or reflects heat and can provide extra weather resistance. It can act as a protective second skin for the roof by helping to prevent storm-driven rain penetrating into the roof cavity. By helping to reduce draughts, it can also limit dust entering the building through gaps around downlights and vents, and help improve thermal performance.

	= Find out more =		= Find out more =

Editor at 17:56, 19 April 2018

2018-04-19T17:56:25Z

← Older revision		Revision as of 17:56, 19 April 2018
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	* Pitched roof.		* Pitched roof.
	* Roofing defects.		* Roofing defects.
		+	* Sheathing.
	* Solid wall insulation.		* Solid wall insulation.
	* Structural insulated panels.		* Structural insulated panels.

Editor: Created page with "The term ‘sarking’ has different meanings relating to roof construction. Sarking boards are softwood boards that are attached to the rafters of a pitched roof, under the roo..."

2018-04-19T16:06:06Z

Created page with "The term ‘sarking’ has different meanings relating to roof construction. Sarking boards are softwood boards that are attached to the rafters of a pitched roof, under the roo..."

New page

The term ‘sarking’ has different meanings relating to roof construction.

Sarking boards are softwood boards that are attached to the rafters of a pitched roof, under the roof-covering materials. They are typically around 150 mm wide and are used to provide additional support and strength to the overall structure.

They are used on buildings that can be exposed to high winds, torrential rain or other extreme weather conditions. (They are more common in Scotland than in England and Wales.) Boards tend to only be specified for new-build, not refurbishments, as this would entail a complete re-roofing with coverings being removed and replaced.

A typical roof build-up that contains sarking is as follows (from the bottom):

* Insulation (sitting either between-and-under or between-and-over the rafters).
* Sarking boards (with a gap of 2-3 mm between each one).
* Breathable membrane.
* Roof tiles or other covering.

Sarking can also refer to a pliable membrane such as a layer of felt, polystyrene or reflective soil, that insulates or reflects heat and can provide extra leakage resistance. It can act as a protective second skin for the roof by helping to reduce storm-driven rain into the roof cavity which can then lead to mould growth, ceiling staining, and so on. By helping to reduce draughts, it can also limit dust entering the building through gaps around downlights and vents, and help improve thermal performance.

= Find out more =

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

* Aerogel insulation for buildings.
* Breather membrane.
* Domestic roofs.
* Flat roof.
* Pitched roof.
* Roofing defects.
* Solid wall insulation.
* Structural insulated panels.
* Thermal insulation.
* Types of insulation.
* Types of roof.
* Vapour barrier.

[[Category:Construction_techniques]] [[Category:Products_/_components]]