Difference between revisions of "Building Ventilation"

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Difference between revisions of "Building Ventilation"

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Revision as of 18:42, 25 November 2015

(Asphalt Shingles, Cedar Shakes & Shingles)

1 General

Eave protection is used to protect the eave and valley areas of steep sloped roofs from ice dam damage. An ice dam usually forms when the interior heat of the building warms the snow on the roof, causing it to melt and run down to the eaves. Normally, the eaves are overhanging the building and not heated from the inside. This allows the water to freeze and form an ice dam. As the ice dam grows bigger, it forms a barrier, which prevents water from draining. The water backs up behind the dam and gradually forces its way under the shingles (or shakes, tiles, etc.), through the roof deck, and into the structure. The results can range from minor staining to severe water damage to the structural members.

Eave protection is designed to prevent the water from reaching the deck and leaking into the structure. Recently a number of companies have developed self-adhesive, rubberized asphalt composite sheet materials. Properly formulated and installed, these sheets have the potential to provide a longer life and better performance. The slope and climate conditions are considerations for selection, please see Section 7.

Underlayment is used in the field areas (where eave protection is not required) of the roof to provide a secondary protection beneath the shingles during weather events that force water back up the slope underneath the shingles. Nail Applied materials qualify only as underlayment on roof slopes of more than 1:3 (4/12).

2 Accepted Materials

2.1 GAF

Shingle-Mate Fiberglass
Reinforced Organic Felt - Nail Applied
Stormguard Fiberglass
Reinforced Organic Felt - Nail Applied
Weather Watch Fiberglass
Reinforced Organic Felt - Nail Applied
Deck Armor
Polypropylene Synthetic - Nail Applied

2.2 HENRY COMPANY CANADA

Blueskin PE 200 HT
SBS Modified Bituminous Self-Adhered Membrane
Blueskin RF 100
SBS Modified Bituminous Self-Adhered Membrane
Blueskin RF 200
SBS Modified Bituminous Self-Adhered Membrane
Eaveguard
SBS Modified Bituminous Self-Adhered Membrane
Perma-Seal PG
SBS Modified Bituminous Self-Adhered Membrane

2.3 SOPREMA INC.

Lastoflex
SBS Modified Bituminous Membrane - Nailed Applied
Lastobond 195
SBS Modified Bituminous Self-Adhered Membrane
Lastobond 240
SBS Modified Bituminous Self-Adhered Membrane
Lastobond Shield HT
SBS Modified Bituminous Self-Adhered Membrane
Lastobond Shield
SBS Modified Bituminous Self-Adhered Membrane
Sopraseal Stick 1100
SBS Modified Bituminous Self-Adhered Membrane

2.4 IKO INDUSTRIES LTD.

Armourgard Ice & Water Protector
SBS Modified Bituminous Self-Adhered Membrane
Roofgard SB Underlayment
Spun Bonded Polypropylene Synthetic - Nail Applied
SBS Deck Base 44
SBS Modified Bituminous Membrane - Nail Applied
Roofgard Cool Grey
SBS Modified Bituminous Membrane - Nail Applied

2.5 BUILDING PRODUCTS OF CANADA CORP.

Gripgard
SBS Modified Bituminous Self-Adhered Membrane
Progard
SBS Modified Bituminous Self-Adhered Membrane
S-Gard
SBS Modified Bituminous Self-Adhered Membrane

2.6 MALARKEY ROOFING CO

Arctic Seal Ice & Water Guard
SBS Modified Bituminous Self-Adhered Membrane
Malarkey Right Start UDL Base
SBS Modified Bituminous Membrane Nail Applied
Malarkey Secure Start 1030 Underlayment
Lightweight Synthetic Underlayment - Nail Applied

2.7 CERTAINTEED CORPORATION

WinterGuard Sand
SBS Modified Bituminous Self-Adhered Membrane
WinterGuard HT (High Tack, High Temp.)
SBS Modified Bituminous Self-Adhered Membrane
WinterGuard Granular
SBS Modified Bituminous Self-Adhered Membrane

2.8 INTERWRAP INC.

Titanium UDL 25 Plus, UDL 30 and UDL 50
Polypropylene Synthetic - Nail Applied
Titanium PSU 30
SBS Modified Bituminous Self-Adhered Membrane
RhinoRoof U20
Multi-layer polymer-coated woven synthetic underlayment - Mechanically Attached

2.9 TBA

2.10 PROTECTO WRAP

Jiffy Seal Ice and Water Guard HT;
SBS Modified Bituminous Self-Adhered Membrane
Jiffy Seal Butyl Ice and Water Guard HT;
SBS Modified Bituminous Self-Adhered Membrane

2.11 OWENS CORNING CANADA LP

Deck Defense
Polyolefin Synthetic - Nail Applied
Weatherlock G
SBS Modified Bituminous Self-Adhered Membrane


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Building a Roof