Loft Insulation - Revision history

Designing Buildings at 11:20, 29 March 2023

2023-03-29T11:20:26Z

← Older revision		Revision as of 11:20, 29 March 2023
Line 1:		Line 1:
−	Loft insulation normally refers to insulation that is required in a cold ~~roof scenarios~~, that is insulation installed horizontally between and on top of ~~roofing~~ or ceiling beams, not insulation installed between and on top of the roof structure and rafters (warm roof).	+	Loft insulation normally refers to insulation that is required in a cold roofs, that is insulation installed horizontally between and on top of roof or ceiling beams, not insulation installed between and on top of the roof structure and rafters (a warm roof).

	In a cold roof the air space above the ceiling joists is ventilated and therefore cold, without insulation between it and the warm house below there is significant risk of the warm moist air from the living spaces rising and then cooling quickly on the cold surfaces of the roof space and condensing. This can introduce moisture on the surfaces of the roof structure which can in turn lead to mould, and decay over long periods.		In a cold roof the air space above the ceiling joists is ventilated and therefore cold, without insulation between it and the warm house below there is significant risk of the warm moist air from the living spaces rising and then cooling quickly on the cold surfaces of the roof space and condensing. This can introduce moisture on the surfaces of the roof structure which can in turn lead to mould, and decay over long periods.

−	Introducing ~~a layer~~ of insulation between these spaces reduces the risks of condensation, preventing warm moist air from entering directly into the loft space. ~~The insulalation~~	+	Introducing one or more layers of insulation between these spaces reduces heat loss and reduces the risks of condensation, preventing warm moist air from entering directly into the loft space.

	The first building regulations on home insulation were issued in 1965 and required just 28mm of insulation for a loft, today this is recommended as at least 250 up to 300mm.		The first building regulations on home insulation were issued in 1965 and required just 28mm of insulation for a loft, today this is recommended as at least 250 up to 300mm.
−
−	~~There are a number of points to watch out for when adding insuation to a roof space, in particular regarding the ventilation of that space.~~

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

Editor at 01:19, 24 February 2023

2023-02-24T01:19:47Z

← Older revision		Revision as of 01:19, 24 February 2023
Line 9:		Line 9:
	There are a number of points to watch out for when adding insuation to a roof space, in particular regarding the ventilation of that space.		There are a number of points to watch out for when adding insuation to a roof space, in particular regarding the ventilation of that space.

−	Related articles on Designing Buildings	+	= Related articles on Designing Buildings =

−	Approved Document F.	+	* Approved Document F.
−		+	* Cold bridge.
−	Cold bridge.	+	* Condensation pipework.
−		+	* Damp.
−	Condensation pipework.	+	* Damp proofing.
−		+	* Dehumidification.
−	Damp.	+	* Designing out unintended consequences when applying solid wall insulation FB 79.
−		+	* Dew point.
−	Damp proofing.	+	* Diagnosing the causes of dampness (GR 5 revised).
−		+	* Dry-bulb temperature.
−	Dehumidification.	+	* Electrical resistance meters.
−		+	* Flashing.
−	Designing out unintended consequences when applying solid wall insulation FB 79.	+	* Humidification.
−		+	* Humidity.
−	Dew point.	+	* Hygrothermal.
−		+	* Interstitial condensation.
−	Diagnosing the causes of dampness (GR 5 revised).	+	* Methodology for moisture investigations in traditional buildings.
−		+	* Moisture.
−	Dry-bulb temperature.	+	* Moisture content.
−		+	* Mould growth.
−	Electrical resistance meters.	+	* Penetrating damp.
−		+	* Psychometric chart.
−	Flashing.	+	* Rising damp.
−		+	* Sling psychrometer.
−	Humidification.	+	* Spalling.
−		+	* Treating brickwork with sealant or water repellent.
−	Humidity.	+	* Water vapour.
−		+	* Wet-bulb temperature.
−	Hygrothermal.	+	* Blue roof.
−		+	* Condensation in buildings.
−	Interstitial condensation.	+	* Domestic roofs.
−		+	* Flat roof.
−	Methodology for moisture investigations in traditional buildings.	+	* Flat roof defects.
−		+	* Interstitial condensation.
−	Moisture.	+	* Inverted roof.
−		+	* Roofing defects.
−	Moisture content.	+	* Thermal bridging in buildings.
−		+	* Thermal comfort.
−	Mould growth.	+	* Warm roof.
−		+	* Cold roof
−	Penetrating damp.	+
−		+
−	Psychometric chart.	+
−		+
−	Rising damp.	+
−		+
−	Sling psychrometer.	+
−		+
−	Spalling.	+
−		+
−	Treating brickwork with sealant or water repellent.	+
−		+
−	Water vapour.	+
−		+
−	Wet-bulb temperature.	+
−		+
−	Blue roof.	+
−		+
−	Condensation in buildings.	+
−		+
−	Domestic roofs.	+
−		+
−	Flat roof.	+
−		+
−	Flat roof defects.	+
−		+
−	Interstitial condensation.	+
−		+
−	Inverted roof.	+
−		+
−	Roofing defects.	+
−		+
−	Thermal bridging in buildings.	+
−		+
−	Thermal comfort.	+
−		+
−	Warm roof.	+
−		+
−	Cold roof	+

	[[Category:Articles_needing_more_work]]		[[Category:Articles_needing_more_work]]

Editor at 15:32, 20 February 2023

2023-02-20T15:32:03Z

← Older revision		Revision as of 15:32, 20 February 2023
Line 5:		Line 5:
	Introducing a layer of insulation between these spaces reduces the risks of condensation, preventing warm moist air from entering directly into the loft space. The insulalation		Introducing a layer of insulation between these spaces reduces the risks of condensation, preventing warm moist air from entering directly into the loft space. The insulalation

−	= Related articles on Designing Buildings =	+	The first building regulations on home insulation were issued in 1965 and required just 28mm of insulation for a loft, today this is recommended as at least 250 up to 300mm.
		+
		+	There are a number of points to watch out for when adding insuation to a roof space, in particular regarding the ventilation of that space.
		+
		+	Related articles on Designing Buildings

	Approved Document F.		Approved Document F.
Line 86:		Line 90:

	Cold roof		Cold roof
		+
		+	[[Category:Articles_needing_more_work]]

Editor at 15:28, 20 February 2023

2023-02-20T15:28:17Z

← Older revision		Revision as of 15:28, 20 February 2023
Line 1:		Line 1:
−	Loft insulation normally refers to insulation that is required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not insulation installed between and on top of the roof structure and rafters (warm roof). In a cold roof the air space above the ceiling joists in ventilated and cold ~~and~~ without insulation between it and the warm house below there is significant risk of the warm moist air from the living spaces rising and then cooling quickly on the cold surfaces of the roof space and condensing. This can introduce moisture on tp surfaces of the roof structure which can ~~inturn led~~ to mould ~~issues~~, and decay over long periods. Introducing a layer of insulation between these spaces reduces the risks of condensation.	+	Loft insulation normally refers to insulation that is required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not insulation installed between and on top of the roof structure and rafters (warm roof).
		+
		+	In a cold roof the air space above the ceiling joists is ventilated and therefore cold, without insulation between it and the warm house below there is significant risk of the warm moist air from the living spaces rising and then cooling quickly on the cold surfaces of the roof space and condensing. This can introduce moisture on the surfaces of the roof structure which can in turn lead to mould, and decay over long periods.
		+
		+	Introducing a layer of insulation between these spaces reduces the risks of condensation, preventing warm moist air from entering directly into the loft space. The insulalation
		+
		+	= Related articles on Designing Buildings =
		+
		+	Approved Document F.
		+
		+	Cold bridge.
		+
		+	Condensation pipework.
		+
		+	Damp.
		+
		+	Damp proofing.
		+
		+	Dehumidification.
		+
		+	Designing out unintended consequences when applying solid wall insulation FB 79.
		+
		+	Dew point.
		+
		+	Diagnosing the causes of dampness (GR 5 revised).
		+
		+	Dry-bulb temperature.
		+
		+	Electrical resistance meters.
		+
		+	Flashing.
		+
		+	Humidification.
		+
		+	Humidity.
		+
		+	Hygrothermal.
		+
		+	Interstitial condensation.
		+
		+	Methodology for moisture investigations in traditional buildings.
		+
		+	Moisture.
		+
		+	Moisture content.
		+
		+	Mould growth.
		+
		+	Penetrating damp.
		+
		+	Psychometric chart.
		+
		+	Rising damp.
		+
		+	Sling psychrometer.
		+
		+	Spalling.
		+
		+	Treating brickwork with sealant or water repellent.
		+
		+	Water vapour.
		+
		+	Wet-bulb temperature.
		+
		+	Blue roof.
		+
		+	Condensation in buildings.
		+
		+	Domestic roofs.
		+
		+	Flat roof.
		+
		+	Flat roof defects.
		+
		+	Interstitial condensation.
		+
		+	Inverted roof.
		+
		+	Roofing defects.
		+
		+	Thermal bridging in buildings.
		+
		+	Thermal comfort.
		+
		+	Warm roof.
		+
		+	Cold roof

Editor at 05:40, 20 February 2023

2023-02-20T05:40:31Z

← Older revision		Revision as of 05:40, 20 February 2023
Line 1:		Line 1:
−	Loft insulation normally refers to insulation required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not between and on top of the roof structure and rafters (warm roof).	+	Loft insulation normally refers to insulation that is required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not insulation installed between and on top of the roof structure and rafters (warm roof). In a cold roof the air space above the ceiling joists in ventilated and cold and without insulation between it and the warm house below there is significant risk of the warm moist air from the living spaces rising and then cooling quickly on the cold surfaces of the roof space and condensing. This can introduce moisture on tp surfaces of the roof structure which can inturn led to mould issues, and decay over long periods. Introducing a layer of insulation between these spaces reduces the risks of condensation.

Editor: Created page with "Loft insulation normally refers to insulation required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not bet..."

2023-02-20T05:00:26Z

Created page with "Loft insulation normally refers to insulation required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not bet..."

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Loft insulation normally refers to insulation required in a cold roof scenarios, that is insulation installed horizontally between and on top of roofing or ceiling beams, not between and on top of the roof structure and rafters (warm roof).