Subfloor - Revision history

Editor at 16:54, 13 May 2021

2021-05-13T16:54:39Z

← Older revision		Revision as of 16:54, 13 May 2021
Line 63:		Line 63:
	* Radon protection for new large buildings GG 75.		* Radon protection for new large buildings GG 75.
	* Sleeper wall.		* Sleeper wall.
−	* Sprung floor	+	* Sprung floor.
		+	* Suspended timber floor.
	* The Differences Between Engineered Flooring and Solid Hardwood Flooring.		* The Differences Between Engineered Flooring and Solid Hardwood Flooring.
	* Types of flooring.		* Types of flooring.

Editor at 17:46, 16 February 2021

2021-02-16T17:46:05Z

← Older revision		Revision as of 17:46, 16 February 2021
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	* The Differences Between Engineered Flooring and Solid Hardwood Flooring.		* The Differences Between Engineered Flooring and Solid Hardwood Flooring.
	* Types of flooring.		* Types of flooring.
		+	* Underlay.

	[[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 15:10, 25 January 2021

2021-01-25T15:10:41Z

← Older revision		Revision as of 15:10, 25 January 2021
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	Others may have a solid concrete foundation that serves as the subfloor. Concrete slabs that form the ground floor of a building may be either supported on beams (called a suspended slab) or supported directly on the subsoil (via hardcore, for example) called a ‘ground-bearing slab'.		Others may have a solid concrete foundation that serves as the subfloor. Concrete slabs that form the ground floor of a building may be either supported on beams (called a suspended slab) or supported directly on the subsoil (via hardcore, for example) called a ‘ground-bearing slab'.
		+
		+	{{:Newsletter_sign_up_CTA}}

	Additional structure is sometimes installed over concrete slab subfloors in order to provide a level foundation that’s suitable for the installation of underlayment and flooring. This type of structure may be used when bearing conditions require it or groundwater is present.		Additional structure is sometimes installed over concrete slab subfloors in order to provide a level foundation that’s suitable for the installation of underlayment and flooring. This type of structure may be used when bearing conditions require it or groundwater is present.

Editor at 14:36, 19 January 2021

2021-01-19T14:36:40Z

← Older revision		Revision as of 14:36, 19 January 2021
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	= Types of subfloor =		= Types of subfloor =

−	Plywood is the most common material used for subfloors. Plywood has several properties that make it a useful and ~~popular construction material~~, including:	+	Plywood is the most common material used for subfloors. Plywood has several properties that make it a useful and popularfor this purpose, including:

	* High strength.		* High strength.
Line 37:		Line 37:
	= Problems with subfloors =		= Problems with subfloors =

−	Issues with subfloors can arise due to problems with installation, use of unsuitable materials or damage caused by ~~moisture~~. These problems can be minor (resulting in squeaking or sagging) or they can be major (resulting in significant movement or total failure).	+	Issues with subfloors can arise due to problems with installation, use of unsuitable materials or damage caused by dampness. These problems can be minor (resulting in squeaking or sagging) or they can be major (resulting in significant movement or total failure).

	Moisture is one of the most common problems associated with subfloors. Signs of subfloor moisture problems include:		Moisture is one of the most common problems associated with subfloors. Signs of subfloor moisture problems include:
Line 50:		Line 50:
	* Bubbling linoleum floor.		* Bubbling linoleum floor.

−	A vapour or moisture ~~barriers~~ installed over the subfloor can sometimes help to reduce seasonal fluctuations brought about by changes in humidity and heat, but ~~larger~~ moisture issues may require more significant remediation measures including replacement.	+	A vapour or moisture barrier installed over the subfloor can sometimes help to reduce seasonal fluctuations brought about by changes in humidity and heat, but serious moisture issues may require more significant remediation measures including subfloor replacement.

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

Designing Buildings at 10:10, 19 January 2021

2021-01-19T10:10:31Z

← Older revision		Revision as of 10:10, 19 January 2021
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	{\|		{\|
−	\| [[File:Subfloor.jpg]]	+	\| [[File:Subfloor.jpg\|link=File:Subfloor.jpg]]
	\|-		\|-
	\| Workers instal a subfloor for a home being built as part of the Southeast Missouri Farms Project, 1938.		\| Workers instal a subfloor for a home being built as part of the Southeast Missouri Farms Project, 1938.
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	= Introduction =		= Introduction =

−	A subfloor is ~~defined as~~ the initial layer of solid material placed just above the joists of a building.	+	The subfloor is the initial layer of solid material placed just above the joists or other structure of a building.

	Some structures may have solid hardwood flooring that is attached directly to the joists. This surface essentially serves as the subfloor.		Some structures may have solid hardwood flooring that is attached directly to the joists. This surface essentially serves as the subfloor.
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	Others may have a solid concrete foundation that serves as the subfloor. Concrete slabs that form the ground floor of a building may be either supported on beams (called a suspended slab) or supported directly on the subsoil (via hardcore, for example) called a ‘ground-bearing slab'.		Others may have a solid concrete foundation that serves as the subfloor. Concrete slabs that form the ground floor of a building may be either supported on beams (called a suspended slab) or supported directly on the subsoil (via hardcore, for example) called a ‘ground-bearing slab'.

−	~~Sleepers are~~ sometimes installed over concrete slab subfloors in order to provide a level foundation that’s suitable for the installation of underlayment and flooring. This type of structure may be used when bearing conditions require it or groundwater is present.	+	Additional structure is sometimes installed over concrete slab subfloors in order to provide a level foundation that’s suitable for the installation of underlayment and flooring. This type of structure may be used when bearing conditions require it or groundwater is present.

	Placing a solid subfloor over the joists, covering it with underlayment and then layering that with flooring provides a more stable surface. It also helps to assure that the joists support most of the load of the floor.		Placing a solid subfloor over the joists, covering it with underlayment and then layering that with flooring provides a more stable surface. It also helps to assure that the joists support most of the load of the floor.
Line 29:		Line 29:
	* Insulation.		* Insulation.

−	The thickness of a plywood subfloor depends on the distance between joists. ~~Ideally, thinner~~ plywood can be used when joists are close together, but slightly thicker plywood is recommended when there is more than 40cm between joists.	+	The thickness of a plywood subfloor depends on the distance between joists. Thinner plywood can be used when joists are close together, but slightly thicker plywood is recommended when there is more than 40cm between joists.

	Subfloors can also be made from oriented strand board (OSB). OSB has similar properties to plywood and is suitable for load-bearing applications. It can be more cost-effective than plywood. Impermeability to water can be achieved through the use of additional membranes.		Subfloors can also be made from oriented strand board (OSB). OSB has similar properties to plywood and is suitable for load-bearing applications. It can be more cost-effective than plywood. Impermeability to water can be achieved through the use of additional membranes.

−	Another type of subfloor is high-performance engineered panels. Like plywood and OSB, these panels are designed for load bearing applications. They have built in moisture resistance and are manufactured with special resins to reduce other issues - such as swelling - associated with subfloors.	+	Another type of subfloor is high-performance engineered panels. Like plywood and OSB, these panels are designed for load bearing applications. They have built in moisture resistance and are manufactured with special resins to reduce other issues - such as swelling - associated with some subfloors.

	= Problems with subfloors =		= Problems with subfloors =
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	* Sunken sections.		* Sunken sections.
	* Squeaking.		* Squeaking.
−	* Smelling damp	+	* Smelling damp.
	* Shifting or bouncing floors.		* Shifting or bouncing floors.
−	* Rocking or loose ~~toilet~~.	+	* Rocking or loose fixtures and fittings.
	* Cracking tile flooring.		* Cracking tile flooring.
−	* Dipping or buldging ~~hardwood floor~~.	+	* Dipping or buldging.
	* Bubbling linoleum floor.		* Bubbling linoleum floor.
−	* Leaking ceiling.

−	A ~~vapor~~ or moisture ~~barrier~~ installed over the subfloor can sometimes help to reduce seasonal fluctuations brought about by changes in humidity and heat, but larger moisture issues may require more significant remediation measures (including replacement ~~after 20 to 30 years)~~.	+	A vapour or moisture barriers installed over the subfloor can sometimes help to reduce seasonal fluctuations brought about by changes in humidity and heat, but larger moisture issues may require more significant remediation measures including replacement.

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

Editor at 09:49, 19 January 2021

2021-01-19T09:49:24Z

← Older revision		Revision as of 09:49, 19 January 2021
Line 1:		Line 1:
		+	{\|
		+	\| [[File:Subfloor.jpg]]
		+	\|-
		+	\| Workers instal a subfloor for a home being built as part of the Southeast Missouri Farms Project, 1938.
		+	\|}
		+
	= Introduction =		= Introduction =

Editor at 21:23, 18 January 2021

2021-01-18T21:23:36Z

← Older revision		Revision as of 21:23, 18 January 2021
Line 51:		Line 51:
	* Click and lock flooring.		* Click and lock flooring.
	* Floor slab.		* Floor slab.
−	* Laminate flooring	+	* Laminate flooring.
		+	* Plywood.
		+	* Oriented strand board.
	* Radon protection for new large buildings GG 75.		* Radon protection for new large buildings GG 75.
	* Sleeper wall.		* Sleeper wall.

Editor at 21:17, 18 January 2021

2021-01-18T21:17:19Z

← Older revision		Revision as of 21:17, 18 January 2021
Line 5:		Line 5:
	Some structures may have solid hardwood flooring that is attached directly to the joists. This surface essentially serves as the subfloor.		Some structures may have solid hardwood flooring that is attached directly to the joists. This surface essentially serves as the subfloor.

−	Others may have a solid concrete foundation that serves as the subfloor. ~~However, sleepers are sometimes installed over concrete subfloors in order to provide a stable, level foundation that’s suitable for~~ the ~~installation~~ of ~~underlayment and flooring. This type of structure~~ may be ~~used when bearing conditions require it~~ or ~~groundwater is present~~.	+	Others may have a solid concrete foundation that serves as the subfloor. Concrete slabs that form the ground floor of a building may be either supported on beams (called a suspended slab) or supported directly on the subsoil (via hardcore, for example) called a ‘ground-bearing slab'.

−	~~Placing~~ a ~~solid subfloor over~~ the ~~joists~~ and ~~then layering that with~~ flooring ~~provides a more stable surface~~. ~~It also assures that the joists support much~~ of ~~the load of the floor~~.	+	Sleepers are sometimes installed over concrete slab subfloors in order to provide a level foundation that’s suitable for the installation of underlayment and flooring. This type of structure may be used when bearing conditions require it or groundwater is present.

−	~~The term ‘flooring’ refers to~~ the ~~lower enclosing~~ surface ~~of spaces within buildings~~. ~~This may be part~~ of the ~~floor structure, such as the upper surface~~ of ~~a concrete slab or floor boards, but typically it is a permanent covering laid over~~ the floor.	+	Placing a solid subfloor over the joists, covering it with underlayment and then layering that with flooring provides a more stable surface. It also helps to assure that the joists support most of the load of the floor.

	= Types of subfloor =		= Types of subfloor =
Line 50:		Line 50:

	* Click and lock flooring.		* Click and lock flooring.
		+	* Floor slab.
	* Laminate flooring		* Laminate flooring
	* Radon protection for new large buildings GG 75.		* Radon protection for new large buildings GG 75.

Editor: Created page with "= Introduction = A subfloor is defined as the initial layer of solid material placed just above the joists of a building. Some structures may have solid hardwood flooring that ..."

2021-01-18T21:09:41Z

Created page with "= Introduction = A subfloor is defined as the initial layer of solid material placed just above the joists of a building. Some structures may have solid hardwood flooring that ..."

New page

= Introduction =

A subfloor is defined as the initial layer of solid material placed just above the joists of a building.

Some structures may have solid hardwood flooring that is attached directly to the joists. This surface essentially serves as the subfloor.

Others may have a solid concrete foundation that serves as the subfloor. However, sleepers are sometimes installed over concrete subfloors in order to provide a stable, level foundation that’s suitable for the installation of underlayment and flooring. This type of structure may be used when bearing conditions require it or groundwater is present.

Placing a solid subfloor over the joists and then layering that with flooring provides a more stable surface. It also assures that the joists support much of the load of the floor.

The term ‘flooring’ refers to the lower enclosing surface of spaces within buildings. This may be part of the floor structure, such as the upper surface of a concrete slab or floor boards, but typically it is a permanent covering laid over the floor.

= Types of subfloor =

Plywood is the most common material used for subfloors. Plywood has several properties that make it a useful and popular construction material, including:

* High strength.
* High panel shear.
* Flexibility.
* Moisture resistance.
* Chemical and fire resistance.
* Impact resistance.
* Insulation.

The thickness of a plywood subfloor depends on the distance between joists. Ideally, thinner plywood can be used when joists are close together, but slightly thicker plywood is recommended when there is more than 40cm between joists.

Subfloors can also be made from oriented strand board (OSB). OSB has similar properties to plywood and is suitable for load-bearing applications. It can be more cost-effective than plywood. Impermeability to water can be achieved through the use of additional membranes.

Another type of subfloor is high-performance engineered panels. Like plywood and OSB, these panels are designed for load bearing applications. They have built in moisture resistance and are manufactured with special resins to reduce other issues - such as swelling - associated with subfloors.

= Problems with subfloors =

Issues with subfloors can arise due to problems with installation, use of unsuitable materials or damage caused by moisture. These problems can be minor (resulting in squeaking or sagging) or they can be major (resulting in significant movement or total failure).

Moisture is one of the most common problems associated with subfloors. Signs of subfloor moisture problems include:

* Sunken sections.
* Squeaking.
* Smelling damp
* Shifting or bouncing floors.
* Rocking or loose toilet.
* Cracking tile flooring.
* Dipping or buldging hardwood floor.
* Bubbling linoleum floor.
* Leaking ceiling.

A vapor or moisture barrier installed over the subfloor can sometimes help to reduce seasonal fluctuations brought about by changes in humidity and heat, but larger moisture issues may require more significant remediation measures (including replacement after 20 to 30 years).

= Related articles on Designing Buildings Wiki =

* Click and lock flooring.
* Laminate flooring
* Radon protection for new large buildings GG 75.
* Sleeper wall.
* Sprung floor
* The Differences Between Engineered Flooring and Solid Hardwood Flooring.
* Types of flooring.

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