{"id":221681,"date":"2024-10-19T14:23:23","date_gmt":"2024-10-19T14:23:23","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-52502002-2005\/"},"modified":"2024-10-25T07:55:58","modified_gmt":"2024-10-25T07:55:58","slug":"bs-52502002-2005","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-52502002-2005\/","title":{"rendered":"BS 5250:2002 2005"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nBRITISH STANDARD <\/td>\n<\/tr>\n
2<\/td>\nCommittees responsible for this British Standard <\/td>\n<\/tr>\n
3<\/td>\nContents <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
airtight layer
!
high water vapour resistance (type HR) underlay <\/td>\n<\/tr>\n
8<\/td>\nlow water vapour resistance (type LR) underlay
condensate
condensation
interstitial condensation
surface condensation
harmful condensation
inconsequential condensation
nuisance condensation
reverse condensation
cooler side
dewpoint
evaporation
hygroscopic material <\/td>\n<\/tr>\n
9<\/td>\nmoisture content by weight
moisture content of air
night sky radiation
passive stack ventilation
pattern staining
relative humidity
sarking boards
saturation vapour pressure
sheet sarking
sponge effect
thermal bridge <\/td>\n<\/tr>\n
10<\/td>\nvapour control layer
vapour diffusivity
vapour pressure
vapour resistance
vapour resistivity
vented air space
ventilated air space
ventilation rate
warmer side
water vapour <\/td>\n<\/tr>\n
11<\/td>\n4 Behaviour of water vapour in the air
Relationship between air temperature, vapour pressure and relative humidity <\/td>\n<\/tr>\n
12<\/td>\n5 Causes of condensation
5.1 General
5.2 Causes of surface condensation
5.3 Causes of interstitial condensation <\/td>\n<\/tr>\n
14<\/td>\n6 The effects of condensation and high humidity
6.1 General
6.2 Condensate on surfaces
6.3 Mould growth <\/td>\n<\/tr>\n
15<\/td>\n6.4 Interstitial condensation
7 Design principles
7.1 General <\/td>\n<\/tr>\n
16<\/td>\nBalance of factors
7.2 Occupant activity and heating and ventilation regime
7.3 Building configuration <\/td>\n<\/tr>\n
17<\/td>\n7.4 Construction
7.5 Heating and ventilation <\/td>\n<\/tr>\n
18<\/td>\n7.6 Heating and ventilation costs
7.7 Risk assessment <\/td>\n<\/tr>\n
19<\/td>\nEffect of condensate on an impermeable surface
8 Application of design principles: building fabric
8.1 General <\/td>\n<\/tr>\n
20<\/td>\n8.2 Vapour control layers
8.3 Walls <\/td>\n<\/tr>\n
22<\/td>\nMasonry cavity wall <\/td>\n<\/tr>\n
23<\/td>\nSolid wall: internal insulation
Solid wall: external insulation <\/td>\n<\/tr>\n
25<\/td>\nFramed wall
Framed wall with tile cladding <\/td>\n<\/tr>\n
26<\/td>\nWarm steel frame wall <\/td>\n<\/tr>\n
27<\/td>\nSteel frame wall with frame within the insulation <\/td>\n<\/tr>\n
28<\/td>\nSite assembled metal wall
Composite panel wall
8.4 Roofs <\/td>\n<\/tr>\n
31<\/td>\nMaximum retention of condensate before running or dripping on different underlay types, in g\/m2 <\/td>\n<\/tr>\n
33<\/td>\nPitched roof with insulation on a horizontal ceiling – Ventilated below the underlay <\/td>\n<\/tr>\n
34<\/td>\nPitched roof – Large ventilated void above the insulation and a type LR underlay unsupported with an air-open roof covering (see 8.4.2.1.2) <\/td>\n<\/tr>\n
35<\/td>\nPitched roof – Large ventilated void above the insulation and a type LR underlay unsupported with a tight roof covering (see 8.4.2.1.2)
Pitched roof – Large ventilated void above the insulation and a type LR underlay supported on sarking boards <\/td>\n<\/tr>\n
36<\/td>\nMinimum equivalent continuous low level loft space ventilation openings with LR underlays <\/td>\n<\/tr>\n
38<\/td>\nPitched roof – Small ventilated void above insulation and a type HR underlay <\/td>\n<\/tr>\n
39<\/td>\nPitched roof – No void above insulation and a type LR underlay <\/td>\n<\/tr>\n
40<\/td>\nPitched roof – Small void above insulation and a type LR underlay <\/td>\n<\/tr>\n
41<\/td>\nVentilation positions for room in the roof construction requiring ventilation <\/td>\n<\/tr>\n
42<\/td>\nVentilation positions for room-in-roof construction including a flat roofed dormer window <\/td>\n<\/tr>\n
43<\/td>\nVentilation positions for roofs with dormers <\/td>\n<\/tr>\n
44<\/td>\nFramed flat roof: cold type <\/td>\n<\/tr>\n
45<\/td>\nFramed continuous membrane roof: warm type <\/td>\n<\/tr>\n
46<\/td>\nFramed continuous membrane roof: warm type inverted <\/td>\n<\/tr>\n
47<\/td>\nConcrete continuous membrane roof: cold type
Concrete continuous membrane roof: warm type <\/td>\n<\/tr>\n
48<\/td>\nConcrete flat roof: warm type inverted <\/td>\n<\/tr>\n
49<\/td>\nSite assembled metal roof <\/td>\n<\/tr>\n
50<\/td>\nComposite panel roof <\/td>\n<\/tr>\n
51<\/td>\n8.5 Floors <\/td>\n<\/tr>\n
52<\/td>\nTimber suspended ground floor <\/td>\n<\/tr>\n
53<\/td>\nPrecast concrete suspended ground floor <\/td>\n<\/tr>\n
54<\/td>\nSolid ground floors <\/td>\n<\/tr>\n
55<\/td>\nTimber deck with external finish of low vapour resistance
Solid externally exposed floor <\/td>\n<\/tr>\n
56<\/td>\n8.6 Thermal bridging <\/td>\n<\/tr>\n
57<\/td>\n8.7 Windows <\/td>\n<\/tr>\n
58<\/td>\nStandard glazing unit
Drained glazing unit
8.8 Roof lights
8.9 Condensation on internal fittings <\/td>\n<\/tr>\n
59<\/td>\n8.10 Cupboards on external walls
9 Application of design principles: heating
9.1 General
9.2 Warm air heating <\/td>\n<\/tr>\n
60<\/td>\n9.3 Hot water radiators
9.4 High temperature radiant heaters
9.5 Electric storage heaters
9.6 Low temperature radiant heaters
9.7 Unflued oil and gas heaters
9.8 Open fires and solid fuel burning stoves
9.9 Heating controls <\/td>\n<\/tr>\n
61<\/td>\n10 Application of design principles: ventilation
10.1 General
10.2 Natural ventilation
10.3 Passive stack ventilators <\/td>\n<\/tr>\n
62<\/td>\n10.4 Forced ventilation
10.5 Mechanical supply ventilation systems
10.6 Mechanical ventilation with heat recovery <\/td>\n<\/tr>\n
63<\/td>\n10.7 Heated drying cupboards
10.8 Dehumidifiers
11 Diagnosis and remedial work
11.1 General
11.2 Diagnosis of dampness <\/td>\n<\/tr>\n
65<\/td>\n11.3 Damage caused by dampness <\/td>\n<\/tr>\n
66<\/td>\n11.4 Remedial works <\/td>\n<\/tr>\n
67<\/td>\n11.5 Mould growth
12 Particular aspects
12.1 Initial period at commencement of re-use
12.2 Thermal insulating materials
12.3 Furniture
12.4 Larders and unheated stores
12.5 Redecoration
12.6 Heating <\/td>\n<\/tr>\n
68<\/td>\n12.7 Ventilation
12.8 Drying clothes
13 Precautionary measures during construction
13.1 Construction information
13.2 Site checks <\/td>\n<\/tr>\n
69<\/td>\n14 Building user information
14.1 Owner\u2019s manual <\/td>\n<\/tr>\n
70<\/td>\n14.2 Particular aspects <\/td>\n<\/tr>\n
72<\/td>\n(normative) The interrelationship of moisture contents and temperatures
(normative) The interrelationship of moisture contents and temperatures <\/td>\n<\/tr>\n
73<\/td>\nExample of use of the psychrometric chart <\/td>\n<\/tr>\n
74<\/td>\nSaturation vapour pressures for air temperatures 30.9 \u00b0C to -20 \u00b0C <\/td>\n<\/tr>\n
75<\/td>\nPsychrometric chart <\/td>\n<\/tr>\n
76<\/td>\n(normative) Moisture generation and ventilation in occupied buildings
(normative) Moisture generation and ventilation in occupied buildings
Housing
Typical moisture generation rates for household activities
Typical moisture generation rates from heating fuels <\/td>\n<\/tr>\n
77<\/td>\nDaily moisture generation rates for households
Typical ventilation rates
Other buildings <\/td>\n<\/tr>\n
78<\/td>\nVariation of internal humidity classes with external temperature
Internal humidity classes: building types and limiting relative humidities at Te = 0 \u00b0C <\/td>\n<\/tr>\n
79<\/td>\n(normative) Material properties
(normative) Material properties
Thermal conductivities and vapour resistivities <\/td>\n<\/tr>\n
80<\/td>\nThermal conductivities and vapour resistivities <\/td>\n<\/tr>\n
81<\/td>\nThermal conductivities and vapour resistivities (continued) <\/td>\n<\/tr>\n
82<\/td>\nVapour resistances <\/td>\n<\/tr>\n
83<\/td>\nThermal resistances for surfaces and air spaces <\/td>\n<\/tr>\n
84<\/td>\n(normative) Calculation methods
(normative) Calculation methods
General
Surface condensation and mould growth
Interstitial condensation
Principle” <\/td>\n<\/tr>\n
85<\/td>\nExternal climate data
Monthly mean temperature and relative humidity for interstitial condensation calculations (1983-2002) <\/td>\n<\/tr>\n
86<\/td>\nCorrections to monthly mean temperatures and relative humidities from a mean year to achieve condensation risk years with various return periods
Calculation of condensation risk in pitched roofs with a large void above the insulation <\/td>\n<\/tr>\n
87<\/td>\n(informative) Vapour resistances: Conversion factors for unusual units
(informative) Vapour resistances: Conversion factors for unusual units
Factors for converting unusual permeance units to \u00bbg\/N\u00b7s <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Code of practice for control of condensation in buildings<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2005<\/td>\n90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":221686,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1270,2641],"product_tag":[],"class_list":{"0":"post-221681","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-91-120-99","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/221681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/221686"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=221681"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=221681"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=221681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}