Underlay - Revision history

Designing Buildings at 07:36, 14 July 2021

2021-07-14T07:36:19Z

← Older revision		Revision as of 07:36, 14 July 2021
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	There are non-breathable underlays and breathable underlays based on ventilation requirements of the roof.		There are non-breathable underlays and breathable underlays based on ventilation requirements of the roof.
		+
		+	NB The [https://codes.iccsafe.org/content/IRC2018/chapter-2-definitions 2018 International Residential Code] (IRC), published by the International Code Council (ICC) defines underlayment as: ‘One or more layers of felt, sheathing paper, nonbituminous saturated felt, or other approved material over which a roof covering, with a slope of 2 to 12 (17-percent slope) or greater, is applied.’

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

Designing Buildings at 09:31, 17 February 2021

2021-02-17T09:31:21Z

← Older revision		Revision as of 09:31, 17 February 2021
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−	Underlay or underlayment is a term used to describe materials in flooring and roofing.	+	Underlay or underlayment is a term used to describe materials in both flooring and roofing.

	= Flooring =		= Flooring =

−	Underlay in flooring is material made from rubber, sponge, foam, felt, plastic ~~or some other protective substance~~. It serves as a protective layer between the unfinished subfloor and the ~~top~~ floor covering. Depending on the material selected, underlay can help ~~to insulate (both from temperatures~~ and ~~sound)~~, reduce ~~wear~~, enhance comfort ~~and provide other benefits~~. It is sometimes advisable to use higher quality underlay in order to avoid the deterioration that can occur with lower quality products that can harden and crumble over time.	+	Underlay in flooring is material typically made from rubber, sponge, foam, felt, plastic and so on. It serves as a protective layer between the 'unfinished' subfloor and the final floor covering. Depending on the material selected, underlay can help provide thermal and acoustic insulation, reduce impact noise, reduce wear and enhance comfort. It is sometimes advisable to use higher quality underlay in order to avoid the deterioration that can occur with lower quality products that can harden and crumble over time.

	Underlay is most commonly used under vinyl flooring, wood flooring and carpet. Some forms of carpet - such as rubber or foam backed carpet - do not require underlay.		Underlay is most commonly used under vinyl flooring, wood flooring and carpet. Some forms of carpet - such as rubber or foam backed carpet - do not require underlay.
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	= Roofing =		= Roofing =

−	Underlay in roofing is material made from rubber, felt, tar paper, synthetic underlayment ~~or another~~ protective ~~substance~~. As a roofing membrane, the purpose of underlay is to ~~form a protective membrane that~~ helps to prevent ~~leaks~~ under ~~tiles~~.	+	Underlay in roofing is material made from rubber, felt, tar paper, synthetic underlayment and other protective substances. As a roofing membrane, the purpose of underlay is to helps to prevent water that has penetrated through or under the roof covering from leaking into the building.

	There are non-breathable underlays and breathable underlays based on ventilation requirements of the roof.		There are non-breathable underlays and breathable underlays based on ventilation requirements of the roof.

Editor at 17:43, 16 February 2021

2021-02-16T17:43:38Z

← Older revision		Revision as of 17:43, 16 February 2021
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	* Subfloor.		* Subfloor.
	* The development of structural membranes.		* The development of structural membranes.
−	* Types of flooring.

	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]

Editor at 17:41, 16 February 2021

2021-02-16T17:41:38Z

← Older revision		Revision as of 17:41, 16 February 2021
Line 25:		Line 25:
	* Subfloor.		* Subfloor.
	* The development of structural membranes.		* The development of structural membranes.
		+	* Types of flooring.

	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]

Editor at 17:38, 16 February 2021

2021-02-16T17:38:30Z

← Older revision		Revision as of 17:38, 16 February 2021
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	* Adhesives.		* Adhesives.
	* Bamboo flooring.		* Bamboo flooring.
−	* Construction adhesives market.
	* Domestic roofs.		* Domestic roofs.
	* Floating floors in buildings.		* Floating floors in buildings.
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	* Impact sound.		* Impact sound.
	* Roof insulation.		* Roof insulation.
−	* Self-levelling concrete market.
	* Structure-borne sound.		* Structure-borne sound.
	* Subfloor.		* Subfloor.
−	* The development of structural membranes	+	* The development of structural membranes.

	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]

Editor: Created page with "Underlay or underlayment is a term used to describe materials in flooring and roofing. = Flooring = Underlay in flooring is material made from rubber, sponge, foam, felt, plast..."

2021-02-16T17:37:13Z

Created page with "Underlay or underlayment is a term used to describe materials in flooring and roofing. = Flooring = Underlay in flooring is material made from rubber, sponge, foam, felt, plast..."

New page

Underlay or underlayment is a term used to describe materials in flooring and roofing.

= Flooring =

Underlay in flooring is material made from rubber, sponge, foam, felt, plastic or some other protective substance. It serves as a protective layer between the unfinished subfloor and the top floor covering. Depending on the material selected, underlay can help to insulate (both from temperatures and sound), reduce wear, enhance comfort and provide other benefits. It is sometimes advisable to use higher quality underlay in order to avoid the deterioration that can occur with lower quality products that can harden and crumble over time.

Underlay is most commonly used under vinyl flooring, wood flooring and carpet. Some forms of carpet - such as rubber or foam backed carpet - do not require underlay.

= Roofing =

Underlay in roofing is material made from rubber, felt, tar paper, synthetic underlayment or another protective substance. As a roofing membrane, the purpose of underlay is to form a protective membrane that helps to prevent leaks under tiles.

There are non-breathable underlays and breathable underlays based on ventilation requirements of the roof.

= Related articles on Designing Buildings Wiki =

* Adhesives.
* Bamboo flooring.
* Construction adhesives market.
* Domestic roofs.
* Floating floors in buildings.
* How to fit carpet.
* Impact sound.
* Roof insulation.
* Self-levelling concrete market.
* Structure-borne sound.
* Subfloor.
* The development of structural membranes

[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]