Moisture risk of spray foam insulation applied to timber sloped roofs (Record no. 121873)

MARC details
000 -LEADER
fixed length control field 02092nam a22001697a 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 240402t2024 xxk|||||o||||o00| 0 eng d
245 ## - TITLE STATEMENT
Title Moisture risk of spray foam insulation applied to timber sloped roofs
Remainder of title Modelling of moisture risk for retrofitted spray foam insulation in existing dwellings
Medium [Electronic resource]
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. London,
Name of publisher, distributor, etc. Health and Safety Executive
Date of publication, distribution, etc. 28 March 2024
300 ## - PHYSICAL DESCRIPTION
Extent 78p.
520 ## - SUMMARY, ETC.
Summary, etc. Building Safety Regulator of the Health and Safety Executive modelling investigates the level of moisture and timber degradation risk which may be encountered when a sprayed foam insulant is applied to typical domestic timber roofs.<br/><br/>The modelling indicates that risks are low when an open cell (moisture permeable) insulant is applied in line with guidance described in British Standard BS 5250:2021.<br/><br/>Levels of theoretical risk vary with the temperature conditions when the insulant is applied directly to a low resistance underlay. Low levels of risk were found in a climate considered typical for London for all scenarios. Medium levels of risk were found in a climate considered typical for Newcastle for most scenarios.<br/><br/>The modelling identified higher levels of risk in some scenarios when a sprayed foam is applied to high resistance underlay. In particular, high risks were determined in London when open cell insulation is applied with no Air and Vapour Control Layer (AVCL) present, reducing to low risks when a closed cell insulant and/or an AVCL is used. High levels of risk were also identified in Newcastle, which were reduced to a medium or low risk by the presence of an AVCL. The highest risk assessed is when spray foam insulation is applied directly onto the roof covering. This leads to high risks under all modelled scenarios.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Spray Foam
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Insulation
690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN)
9 (RLIN) 6223
Topical term or geographic name as entry element Building materials & defects
710 1# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Health and Safety Executive
9 (RLIN) 491
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://www.gov.uk/government/publications/moisture-risk-of-spray-foam-insulation-applied-to-timber-sloped-roofs">https://www.gov.uk/government/publications/moisture-risk-of-spray-foam-insulation-applied-to-timber-sloped-roofs</a>
Public note Available from HSE
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Date acquired Total Checkouts Date last seen Price effective from Koha item type
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