nafs and the ontario building code...2016-2-24 nbboa presentation 19 2. nafs-08 comparison a-440-00...

NAFS and the Ontario Building Code

Presented at Spring Training Camp

Prepared by Fenestration Canada Presented by

Jeff Baker, Fenestration Canada

April 25, 2016

Fenestration Canada Disclaimer: Nothing in this handout or presentation constitutes legal advice. Material is presented as general guidance and

technical information from Fenestration Canada - a not-for-profit organization. Consult with a lawyer, accountant, and insurance professional before making any decisions.

1. National Building Code 2010 –  Code sections concerning windows, doors and skylights –  Reference to NAFS in 2010 NBC –  What is covered under NBC?

2. NAFS- 08 –  How is it different from CSA? –  What are the new performance ratings? –  Canadian Supplement to NAFS –  What are the new labeling requirements

3.  Performance requirements –  Determining DP –  Determining Water Pressure

2016-2-24 NBBOA Presentation 1

Overview

•  NBC 2010 code sections that are key elements to windows, doors and skylights

-  Section 5.10.2 – Environmental separation

-  Section 9.6 – Glass -  Section 9.7 – Windows, doors and skylights

Note: OBC 2012 contains the same references as NBC 2010


1. National Building Code 2010

9.7.2 Required Windows, Doors and skylights

9.7.2.1 Entrance doors

1)  A door shall be provided at each entrance of a dwelling unit.

2)  Main entrance doors to dwelling units shall be provided with:

a)  A door viewer or transparent glazing in the door, or

b)  A sidelight



•  9.7.3 Performance of Windows, Doors and Skylights

1) Windows, doors and skylights… separating conditioned space from unconditioned space or the exterior shall be designed, constructed and installed so they:

–  a) resist the ingress of precipitation (See section 5.4 of NAFS-08 Canadian Supplement)

–  b) resist wind and snow load (See section 4.3 of NAFS-08 Canadian Supplement)

–  c) control air leakage (See section 5.3 of NAFS-08 Canadian Supplement)

–  d) resist the ingress of insects and vermin

(Passing air leakage and water resistance show compliance with objective of d) )

–  e) where required, resist forced entry (See section of 5.3.5 of NAFS-08)

–  f) are easily operable (See section 5.2 of Canadian supplement)




2) Skylights shall be designed, constructed and installed so that they resist snow load (See A.4.2.4 of NAFS-08 Canadian Supplement)

3) Main entrance doors shall be designed, constructed and installed so that they:

–  a) control air leakage

–  b) resist the ingress of insects and vermin

–  c) resist forced entry

–  d) are easily operable



Main entrance doors – water and wind

load have been omitted. This will be rectified in 2015 code. This omission

does not include other doors - Swinging patio doors that are not protected from precipitation need to meet same performance rating as windows - Wheelchair accessible sills need to be protected from precipitation


4) Storm doors shall be designed, constructed and installed so that they: (not covered in NAFS)

–  a) resist wind loads

–  b) control air leakage min 5 m3/h/m to max 8.35 m3/h/m

–  c) resist the ingress of insects and vermin

–  d) are easily operable




5) Compliance with sentences (1) to (4) shall be demonstrated by:

a) complying with the requirements in

i) Subsection 9.7.4 or 9.7.5, and

ii) Subsection 9.7.6 or

b) design and construction conforming to Part 5.



•  9.7.4. Manufactured Windows, Doors and Skylights



•  9.7.4. Manufactured Windows, Doors and Skylights



•  Minimum requirement of Part 9 is R class

•  Any other performance class automatically meets the minimum required by 9



•  Must be installed according to A440.4 and Manufacturer instructions

•  Need to be connected to the air barrier and vapour barrier

Currently

•  2010 NBC in force •  For windows, doors and skylights, NBC 2010 references NAFS 08 and

Canadian Supplement to NAFS 08

–  For all Part 9 buildings

–  For all Part 5 buildings

–  All new construction and renovation that requires a permit * Note that NBC always presides over NAFS



What does NAFS stand for?

•  North American Fenestration Standard – also referred to as the Harmonized standard

•  Harmonization between 3 standards governing windows and doors in North America

1.  Wood windows + Doors USA = WDMA = WDMA I.S.2 2.  Vinyl + Aluminum Windows USA = AAMA = AAMA 101 3.  All Windows Canada = CSA =CSA A440

•  Harmonization gives us AAMA/WDMA/CSA 101/I.S.2/A440-08 •  (08) means the year – currently the 2008 version is in force.

•  So WDMA/AAMA/CSA 101/I.S.2/A440-08 •  Becomes NAFS 08 for short •  North American Fenestration Standard / Specification for windows,

doors, and skylights


2. NAFS-08

How is NAFS different from CSA A440?

1. CSA A440 was only for windows. Separate standard for sliding glass patio doors, and swinging doors

Under NAFS – windows, doors, and skylights are all covered

2. CSA A440 Performance rating – A, B, C’s Under NAFS and Canadian Supplement - Air infiltration and exfiltration - Water penetration resistance - Design Pressure – Positive and negative

3. CSA A440 – Size tested covered +25% greater in width and height Under NAFS – only covers maximum size tested


2. NAFS-08


4. CSA A440 Mulling testing requirements were limited to structural NAFS offers clear guidelines on mulling requirement for

combination units and composite units for air, water and structural

5. CSA A440 was a stand alone document NAFS works in conjunction with Canadian Supplement to NAFS for Canada

6. CSA A440 labelling requirements – performance but no size

Under NAFS - markings require performance and size tested


2. NAFS-08


7. CSA A440 – only one Performance class – windows Under NAFS – 4 performance class – R, LC, CW and AW

– Suitability of class with reference to application

• R: commonly used in one – and two – family dwellings.

• LC: commonly used in low-rise and mid-rise multi-family dwellings and other buildings where larger sizes and higher loading requirements are expected.

• CW: commonly used in low-rise to mid-rise buildings where larger sizes, higher loading requirements, limits on deflection, and heavy use are expected.

• AW: commonly used in high-rise and mid-rise buildings to meet increased Loading requirements and limits on deflection, and in buildings where frequent and extreme use of the fenestration product is expected.


2. NAFS-08

Differences in performance class


2. NAFS-08

NAFS Performance ratings

8. CSA A440 Performance rating – A, B, C’s Under NAFS - Same test protocol – different representation of the ratings

NAFS performance rating 1-Performance class 2-Performance Grade 3-Size tested 4-Optional product type designation


2. NAFS-08


2. NAFS-08

Water Resistance Comparison CSA A440/NAFS


2. NAFS-08

ComparisonA-440-00 (Canada)

R LC CW AW psf Pa psf Pa15 15 720 2.80 14020 20 960 3.00 150 B1 25 25 25 1200 3.75 180

200 B230 30 30 30 1440 4.50 22035 35 35 35 1680 5.25 26040 40 40 40 40 1920 6.00 290

300 B345 45 45 45 45 2150 6.75 33050 50 50 50 50 2400 7.50 36055 55 55 55 55 2640 8.25 400 B460 60 60 60 60 2880 9.00 44065 65 65 65 65 3120 9.75 470

500 B570 70 70 70 70 3360 10.50 51075 75 75 75 75 3600 11.25 54080 80 80 80 80 3840 12.00 580

600 B685 85 85 85 85 4080 12.75 62090 90 90 90 90 4320 13.50 65095 95 95 95 95 4560 14.25 690

700 B7100 100 100 100 100 4800 15.00 730

Water Test Pressure 15% x DPPERFORMANCE GRADE (PG) Design Pressure (DP)

Wind Load Comparison CSA A440/NAFS


2. NAFS-08

ComparisonA-440-00 (Canada)

R LC CW AW psf Pa psf Pa15 15 720 22.50 108020 20 960 30.00 1440

1500 C125 25 25 1200 37.50 1800

2000 C230 30 30 30 1440 45.00 216035 35 35 35 1680 52.50 252040 40 40 40 40 1920 60.00 2880

3000 C345 45 45 45 45 2150 67.50 324050 50 50 50 50 2400 75.00 360055 55 55 55 55 2640 82.50 3960

4000 C460 60 60 60 60 2880 90.00 432065 65 65 65 65 3120 97.50 4680

5000 C570 70 70 70 70 3360 105.00 504075 75 75 75 75 3600 112.50 540080 80 80 80 80 3840 120.00 576085 85 85 85 85 4080 127.50 612090 90 90 90 90 4320 135.00 648095 95 95 95 95 4560 142.50 6840100 100 100 100 100 4800 150.00 7200

No-limit No-limit No-limit 1.5 x DP 1.5 x DP

Structural Test(150% x DP)

PERFORMANCE GRADE (PG) Design Pressure (DP)

Product Types


2. NAFS-08

Canadian Supplement Performance Requirements • Section 5.1

- Insect screen serviceability test -  60 N force put in on outward direction

(Heavy Duty Screen out of code now – only light duty referenced)

• Section 5.2. - Operating force requirement refers to Table 6 of NAFS - Maximum force used to operate more stringent than in US

• Section 5.3 - Water penetration resistance test pressure - Refers to Clause 5.3.3 and Table 3 in NAFS - In Canada – water pressure goes to 730Pa

• Section 5.4 - Air infiltration and exfiltration levels (Minimum now is A2 level) - References Table 9 in NAFS


2. NAFS-08

Canadian Supplement Performance Requirements


2. NAFS-08

For Canada Water is decoupled from the performance grade to allow for higher water

resistance requirements.

Canadian Supplement Labelling Requirements


2. NAFS-08

Canadian Supplement Labelling Requirements Sample Label


2. NAFS-08

Class R - PG25 – Size Tested 760 x 1520 mm – Type C Positive Design Pressure (DP) 1200 Pa Negative Design Pressure (DP) –1200 Pa Water Penetration Resistance Test Pressure 220 Pa Canadian Air Infiltration/Exfiltration A3 Level

Conforms to: AAMA/WDMA/CSA 101/I.S.2/A440-08 and A440S1-09

Rough terrain: NBC 2010 definition: where rough terrain is suburban, urban or wooded terrain extending upwind from the building uninterrupted for at least 1 km or 20 times the height of the building, whichever is greater.

Open terrain NBC 2010 definition: where open terrain is level terrain with only scattered buildings, trees or other obstructions, open water or shorelines.

Height 10m and up at 5m increments


3. Performance Requirements

•  Location - Huntsville

•  Open Terrain at 10 metres –  DRWP = 140

–  Hourly Wind pressure = 0.35



•  Location - Huntsville •  Open Terrain at 10 metres

–  DRWP = 140 Pa

–  Specified DRWP = 171 Pa



•  Location - Huntsville •  Open Terrain at 10 meters

-  Hourly Wind pressure=0.35 and Specified Wind Load=0.98 kPa or 980 Pa



•  Location - Huntsville •  Minimum PG – Huntsville example (Specified Wind Load 980 Pa, Specified DRWP 171 Pa)

•  R – PG25, DP 1400 Pa and water test pressure of 180 Pa or greater



•  Fenestration Canada NAFS Performance Calculator •  Location

Huntsville, ON •  Height

Less than 10m •  Terrain

Open

•  www.fenestrationcanada.ca 2016-2-24 NBBOA Presentation 31


•  Location - Sarnia •  Minimum PG – Sarnia example (Specified Wind Load 1410 Pa, Specified DRWP 268 Pa)

•  R – PG30 and water test pressure of 180 Pa or more



•  Fenestration Canada NAFS Performance Calculator •  Location

Sarnia, ON •  Height

Less than 10m •  Terrain

Open

•  www.fenestrationcanada.ca



•  Sample Test Report

Huntsville Sarnia DP 1200 Pa 1440 Pa Water 180 Pa 290 Pa



•  Fenestration Canada NAFS Guidelines



•  Fenestration Canada NAFS Guidelines –  Presents 10 Guidelines for NAFS labeling –  Sample labels



•  Fenestration Canada NAFS Mullion Labelling Guidelines




THANK YOU …

… QUESTIONS?

nafs and the ontario building code...2016-2-24 nbboa presentation 19 2. nafs-08 comparison a-440-00...

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