Airtightness Requirements

Transcription

1 Retrotec Inc. Airtightness Requirements rev

2 Table of Contents Acceptable testing conditions, test setup requirements, and results... 3 Residential requirements... 4 Large Building requirements... 7 Description of requirement units Page 2 of 10

3 Acceptable testing conditions, test setup requirements, and results Standard ASTM E Applies to Residences ATTMA TSL1/TSL2 Residences & Large Buildings CGSB Building envelopes Building envelopes and ducts Clean Agent protected enclosures EN13829 LEED CE WA State RESNET Title 24 Engy Star v3.0 NFPA 2001 Residences Residences Apartments Large Buildings Large Buildings Residential Ducts & Residential Ducts Origin UK Canada Europe North Amica WA state CA state Acceptable conditions Baseline points Induced pressure point range Numb of points, p test direction Test Direction Prefred Test Direction acceptable Results Required results Pressure accuracy Flow accuracy 41 to 95 F, than 5 mph wind 10 second avages, before and aft flow measurements than 6m/s wind, height x ΔT product is than 250 m C 30 second avages, before and aft flow measureme nts than 20km/h wind Before each test measurement than 6m/s wind, height x ΔT product is than 500m C 30 second avages, before and aft a test Same as ASTM 10 second avages, before and aft flow measurements Bias pressure than10% of min. test OR than30% for both ways 20 second avages,12 points before and aft flow measurements 95% confidence intval 10 second avages, before and aft flow measurements 10 to 60 Pa 10 to 60 Pa 15 to 50 Pa 10 to 50 Pa 10 to 60 Pa 40 to 75 Pa 25 to 80 Pa , 2, or % confidence intval Ducts: 5 second avages; : 10 second avages; Before and aft flow measurements Ducts: 25 Pa : 50 Pa, or Pa Ducts: 1 pt (25 Pa) : 1,7, or 1x5 pt(s): -Single point (50 Pa), or -7 points (15-60 Pa), or -Repeated Single point (50 Pa x 5) or equal to 25 pcent of duct surface area is in unconditioned space, & than 5,000 ft² floor area None 25 Pa 1 Residential Ducts & : 41 to 95 F, Less than 5 mph wind Ducts: none : 10 second avages, before and aft flow measurements (ASTM E779-10) Ducts: 25 Pa : Pa (ASTM E779-10) Ducts: 1 : 5-10 Clean Agent protected enclosures North Amica, South East Asia, Middle East Bias Pressure : than 25% of Column Pressure & than 5 Pa 30 second avages, before a test ISO / EN Clean Agent protected enclosures Europe, Australia Bias Pressure : than 25% of Column Pressure & than 3Pa Before a test 10 and 50 Pa 10 to 60 Pa 2 5 Both Both Depress. Both Both Both Both Press. Press. Press. Both Both Eith but usually depress. 4Pa CFM50 none ± 5% or 0.25 Pa, whichev is Usually press. (m 3 /h)/m 2 2 to 10 (m 3 /h)/m2 Depress. none Usually depress. eith Both un building requires ov 125,000 CFM (m 3 /h)/m 2 4Pa CFM75/ sq ft CFM75/ sq ft none ± 2 Pa ± 1 Pa ± 1 Pa 1.25 in2/ sq ft 4Pa ± 5% or 0.25 Pa, whichev is 0.25 CFM75/ sq ft ± 1% or 0.25 Pa, whichev is Press. Eith Press. Press. Both Both 0.40 CFM75 ± 5% or 0.25 Pa, whichev is Ducts: CFM25 : CFM50 none ± 1% or 0.5 Pa, whichev is, ± 0.1 Pa precision CFM25 New systems: Leakage 6% of total air handl fan flow Existing systems: than60% leakage reduction ± 3%, ± 0.2 Pa precision Ducts: CFM25 : : 6 for Climate Zones 1,2 5 for Climate Zones 3,4 4 for Climate Zones 5,6,7 3 for Climate Zone 8 Total Duct Leakage: 8 CFM25/100 ft 2 conditioned floor area Duct Leakage to Outdoors: 4 CFM25/100 ft 2 conditioned floor area ± 5% or 0.25 Pa, whichev is (ASTM E779-10) -Hold time -Peak Pressure Hold time: than 10* minutes Max Peak Pressure: than Enclosure Pressure Limit ± 1 Pa ± 1 Pa ± 5% ± 7% ± 5% ± 7% ± 5% ± 5% ± 5% ± 5% ± 5% ± 3% ± 5% ± 5% -Hold time -Peak Pressure Hold time: than 10* minutes Max Peak Pressure: than Enclosure Pressure Limit * or than estimated time necessary for fire psonnel to arrive on-site Page 3 of 10

4 Residential requirements Based on floor area of 2,250 sq ft, height of 8 ft, n=0.65. Program Standard Region Comments Requirement North Amica Page 4 of 10 ACH 50 CFM50 R-2000 CGSB Canada Vancouv CGSB Canada Climate Zones 1 and 2, LEED for Canada hot areas / semi-tropical Climate Zones 3 and Climate Zones 5 to Ctified Climate Zones 1 and 2, LEED for Canada hot areas / semi-tropical Climate Zones 3 and Climate Zones 5 to Pts Climate Zones 1 and 2, LEED for Canada hot areas / semi-tropical Climate Zones 3 and Climate Zones 5 to Pts LEED for Climate Zones 1 and 2, Canada hot areas / semi-tropical Climate Zones 3 and Climate Zones 5 to Pt Climate Zones 1 and 2, LEED for Canada hot areas / semi-tropical Climate Zones 3 and Climate Zones 5 to Pts EEBA Engy and Environmental Building Association Guidelines 0.25 CFM ASTM E779 Climate Zones 1 and 2, hot areas / semi-tropical ENERGY Climate Zones 3 and STAR V 2.0 Climate Zones 5 to ASTM E779 Climate Zones 1 and 2, ENERGY hot areas / semi-tropical STAR Climate Zones 3 and V 3.0 Climate Zones 5 to (m 3 /hr50) /m 2

5 Program Standard Region Comments Requirement ACH 50 CFM LEED ETS ASTM E779 Environmental Tobacco Smoke (sq in EfLA 4)/ (ETS) air quality standard sq ft LEED Air quality standard used for 0.23 CFM50/ sq ft apartments. All 6 surfaces enclosing an apartment. Same 1.17 (L/s 50)/m as 1.25 sq in EfLA at 4 Pa. IECC Climate Zones 1 and Climate Zones 3 to IECC Georgia, 2009 All Climate Zones NC Engy ASTM E779 North 0.30 CFM Code Carolina, ORSC / OEESC PA housing ASTM E779 Oregon, 3.5 to 5 is Tight, Pennsylvania, 5 to 7 is good Tight than 5 PA Housing Research/Resource Cent (PHRC) Modate than 10, Leaky than 10 Pa Housing Research/Resource Cent (PHRC) Europe Passivhaus Europe TNI TNI Austria Naturally ventilated Bulgaria Czech Republic Czech Republic Apartments (m 3 /hr50) /m 2 Mechanically ventilated high than2 than than0.10 than Single family houses medium low high medium low than5.0 than than than 5.0 than than0.24 than Low engy house Natural Forced Forced + heat recovy than4.4 than Page 5 of 10

6 Program Standard Region Comments Requirement Page 6 of 10 ACH 50 CFM50 Forced + heat recovy passive house Denmark Residential 1.5 (L/s 50)/m Estonia Small buildings, new 6.0 (m 3 /h )/m Small buildings, existing 9.0 (m 3 /h )/m Finland Building heat loss refence Engy Pformance Ctificate (EPC) New apartments France Single family houses 0.8 (m 3 /h 4)/m Oth residential buildings 1.2 (m 3 /h 4)/m Gmany With Ventilation systems Without Ventilation systems Lithuania Naturally ventilated Mechanically ventilated Latvia Dwellings (m 3 /hr50) /m 2 Ventilated Buildings Nethlands With Ventilation systems Without Ventilation systems Norway Portugal Residential 0.6 ACH Slovenia Naturally ventilated Slovakia TS 825 Turkey Floor multidwellin g Mechanically ventilated Single family house with high quality windows All oth buildings High Med Floor, single flats ATTMA TSL1 UK Best practice Normal practice Low High Med Low than5 than4 than 5 than than1 0 than 10 than0.24 than than than4.4 than than9.0 naturally ventilated 5.0 (m 3 /h 50)/m mechanically ventilated 1.0 (m 3 /h 50)/m naturally ventilated 7.0 (m 3 /h 50)/m mechanically ventilated 5.0 (m 3 /h 50)/m

7 Program Standard Region Comments Requirement Green Building Regulations ATTMA STd 189, GSA UK ACH 50 CFM50 Best practice 1.8 (m 3 /h 50)/m UK Dwelling regulation 5 (m 3 /h 50)/m Oth regions CGSB Japan Airtight 2.24 Dubai, UAE (cm 2 EqLA 9.8)/ m (m 3 /h 50)/m (m 3 /hr50) /m 2 Large Building requirements Based on a 4 story building, 120 x 110 x 8 ft p story, n=0.65 Standard Region Comments Requirement North Amica CFM75 Canadian NBC for RH Canada Assemblies 0.10 (L/s 50)/m National Canadian Building Canada 0.15 (L/s 50)/m Code Assemblies 0.05 (L/s 50)/m ASHRAE 90.1 Avage 0.30 CFM LEED All 6 surfaces enclosing an apartment. Leaky 0.60 CFM Tight 0.10 CFM CFM (L/s 50)/m CE Large Buildings 0.25 CFM Washington State, Seattle Code Large Buildings (proposed) 0.15 CFM WA Engy Code, 4 storeys or more. Positive induced pressure 0.40 CFM or both. Europe Passivhaus Europe Austria Naturally ventilated Mechanically ventilated Belgium 12 (m 3 /h 50)/m Czech Republic Common Buildings maximum Low engy buildings Passive houses Mechanically ventilated buildings without heat recovy Mechanically ventilated buildings with heat recovy Normal New building 1.5 (L/s 50)/m (m 3 /hr 50)/m 2 Page 7 of 10

8 Standard Region Comments Requirement Denmark (current regulation) Denmark (new regulations: 2020) Building with high ceiling Normal Building with high ceiling CFM75 Low engy building 1.0 (L/s 50)/m New building 0.5 (L/s 50)/m Low engy building 0.3 (L/s 50)/m (L/s 50)/m New building 0.15 (L/s 50)/m Estonia Small buildings, new 6.0 (m 3 /h 50)/m Small buildings, existing 9.0 (m 3 /h 50)/m Large buildings, new 3.0 (m 3 /h 50)/m Large buildings, existing 6.0 (m 3 /h 50)/m Finland Building heat loss refence Engy Pformance Ctificate (EPC) France Offices, hotels, educational and health care buildings 1.2 (m 3 /h 4)/m Oth buildings 2.5 (m 3 /h 4)/m DIN Gmany Naturally ventilated 3.0 (m 3 /h 50)/m Mechanically ventilated Lithuania Naturally ventilated Mechanically ventilated Latvia Public and Industrial buildings Ventilated Buildings Norway Slovenia Naturally ventilated Mechanically ventilated Scotland Current regulation 5.0 (m 3 /h 50)/m New regulation 1.0 (m 3 /h 50)/m Slovakia ATTMA TSL2 UK Best Office Natural Practice Ventilation 3.0 (m 3 /h 50)/m Office Mixed Ventilation 2.5 (m 3 /h 50)/m Office AC/low engy 2.0 (m 3 /h 50)/m Factories/ warehouses 2.0 (m 3 /h 50)/m Supmarkets 1.0 (m 3 /h 50)/m Normal Practice Schools 3.0 (m 3 /h 50)/m Hospitals 5.0 (m 3 /h 50)/m Museums / archives 1.0 (m 3 /h 50)/m Cold stores 0.2 (m 3 /h 50)/m Office Natural Ventilation 7.0 (m 3 /h 50)/m Office Mixed Ventilation 5.0 (m 3 /h 50)/m Office AC/low engy 5.0 (m 3 /h 50)/m (m 3 /hr 50)/m 2 Page 8 of 10

9 Standard Region Comments Requirement UK (current regulation) UK (new regulations) CFM75 Factories/ warehouses 6.0 (m 3 /h 50)/m Supstores 5.0 (m 3 /h 50)/m Schools 9.0 (m 3 /h 50)/m Hospitals 9.0 (m 3 /h 50)/m Museums / archives 1.5 (m 3 /h 50)/m Cold stores 0.35 (m 3 /h 50)/m New Building 10 (m 3 /h 50)/m Small Building ( than 500 m 3 ) 15 (m 3 /h 50)/m Large Building 5 (m 3 /h 50)/m With cooling requirement 3 (m 3 /h 50)/m Without cooling requirement 5 (m 3 /h 50)/m Oth regions Abu Dhabi Building Code Abu Dhabi, Commcial building test 2.0 (L/s 75)/m (IECC) UAE Green Building Regulations Dubai, UAE 10 (m 3 /h 50)/m IECC Global 5.6 (m 3 /h 50)/m Engy Consvation Building Code India 0.4 CFM Japan Level A Level B Level C QSAS Qatar Low 0.6 (m 3 /h 4)/m Med 1.1 (m 3 /h 4)/m High 2.2 (m 3 /h 4)/m (m 3 /hr 50)/m 2 Page 9 of 10

10 Description of requirement units Acronym Requirement unit Description, n 50 /h Air Changes p Hour, at 50 Pa induced pressure CFM50 Cubic feet p minute, at 50 Pa induced pressure, p square foot of total enclosure surface area CFM75 Cubic Feet p Minute, at 75 Pa p square foot of total enclosure surface area cm 2 EqLA50/m 2 Square centimets of Equivalent Leakage Area, at 50 Pa induced pressure, p square metre of enclosure surface area EfLA50/10 6 Surface area Effective Leakage Area, at 50 Pa induced pressure, p million units of envelope area EqLA50/10 6 Surface area Equivalent Leakage Area, at 50 Pa induced pressure, p million units of envelope area (L/s)/m 2 Litres p second p square metre of enclosure surface area (L/s 50)/m 2 Litres p second p square metre of enclosure surface area, at 50 Pa induced pressure (m 3 /h)/m 2 Pmeability or air leakage index usually taken at 50 Pa induced pressure (m 3 /h 50)/m 2 Cubic metres p hour, at an induced pressure of 50 Pa, p square metre of total enclosure area to outdoors including the ground. Usually und pressurization only although most Standards recommend testing both ways. NLA sq in Square inches of EqLA refenced to 10Pa p square foot of floor area. Q50 L/s Volumetric air flow rate, in litres p second at 50 Pa induced pressure ELA sq in EfLA4 Square inches of Effective Leakage Area at a refence pressure of 4 Pa extrapolated from multiple test points taken between 15 and 60 Pa und depressurization. sq in EfLA4/100 sq ft Square inches of Effective Leakage Area at 4 Pa p 100 square feet of enclosure surface area extrapolated from multiple test points taken between 15 and 60 Pa und depressurization V 4 m 3 /h Volumetric air flow rate, in cubic mets p hour at 4 Pa induced pressure Page 10 of 10