Template:Materials - Eave Protection & Underlayment (ASM)
Template:Materials - Eave Protection & Underlayment (ASM)
The problems resulting from the presence of condensation represent one of the major causes of damage to the structure and fabric of old and modern buildings alike. They are, therefore, of great importance to the specifier in his design role. The increased use of insulation and modern roof construction methods have created further major condensation risks within the roof void.
The specifier must ensure that the risk of condensation is minimised by ensuring the correct design, suitable ventilation in accordance with the B.C. Building Code, and specification of the most suitable underlay.
RoofStar-guaranteed metal roofing systems require a suitable underlay to ensure that any moisture produced by condensation is not introduced into the roofing system components or the structure of the building. Modified bituminous membranes that are not arranged under insulation must have a high softening point bitumen with a minimum flow temperature of 87.7°C (190°F) to prevent material displacement from heat transfer through metal panels during high temperature days. (See UNDERLAYMENT - Eave and Detail Protection (ASM Roof Systems)). All accepted modified bituminous self-adhesive membranes listed exceed a minimum flow temperature of 87.7°C (190°F.).
Accepted No. 30 Asphalt felt or RoofStar-accepted proprietary synthetic underlayments that meet or exceed the CSA A123.3 standards for No. 30 Asphalt Felt are acceptable for use on uninsulated wood decks sloped over 4" in 12". Manufacturer's limitations are to be followed.
For RoofStar-accepted No. 30 asphalt felts refer to BUR Felts in the Accepted Materials section of this Manual.
| Manufacturer | Product Name | Product Type | Top Surface | Use as Separation Layer | Eaves & Valleys | Under -layment | Nominal Thickness - mm (mil) | Application Method | Special Notes |
|---|---|---|---|---|---|---|---|---|---|
| No. 30 Asphalt Felt | Various | Felt underlayment | Non-woven Felt | Variable | Nail-applied | For uninsulated wood decks only with slopes of 1:3 (4" in 12") or greater | |||
| Building Products of Canada Corp. | Gripgard | SBS Modified Bituminous | ‒ | ‒ | ‒ | Self-adhering | ‒ | ||
| CertainTeed Corporation | DiamondDeck | Reinforced synthetic | Synthetic Polymer | N/A | Nail-applied | Can be left exposed for up to 90 days | |||
| Firestone Building Products | Clad-Gard SA | SBS Modified Bituminous | Woven Polyethylene | 1.00 (40) | Self-adhering | Synthetic underlayment only for slopes greater than 5:12 / can be left exposed for up to 90 days | |||
| Firestone Building Products | Clad-Gard MA | SBS Modified Bituminous | Not Stated | N/A | Self-adhering | Underlayment Only for roofs 4:12 or greater | |||
| FT Synthetics | FT Synthetics PLATINUM | Water-resistant Polyolefin | Polyolefin | 0.50 (20) | Nail-applied | Underlayment Only for roofs 4:12 or greater | |||
| FT Synthetics | FT Synthetics GOLD | Water-resistant Polyolefin | Polyolefin | 0.40 (16) | Nail-applied | ‒ | |||
| FT Synthetics | FT Synthetics SILVER | Water-resistant Polyolefin | Polyolefin | 0.30 (12) | Nail-applied | ‒ | |||
| FT Synthetics | FT Synthetics PLATINUM HT-SA | Water-resistant Polyolefin | GRIPSPOT TM | 1.04 (41) | Self-adhering | UV resistant for up to 180 days | |||
| FT Synthetics | FT Synthetics HYDRA | Water-resistant Polyolefin | GRIPSPOT TM | 0.76 (30) | Nail-applied | Can be left exposed for up to 60 days | |||
| GAF | Stormguard | SBS Modified Bituminous | Not Stated | 1.02 (40) | Self-adhering | ‒ | |||
| HAL Industries Inc. | “Super” Tilemate G100 FW | SBS Modified Bituminous | Woven Polypropylene | 1.00 (40) | Self-adhering | ‒ | |||
| Henry Company Canada | Blueskin PE 200 HT | SBS Modified Bituminous | Blue-Cross Laminated Polyethylene | 1.00 (40) | Self-adhering | ‒ | |||
| Henry Company Canada | Blueskin RF 200 | SBS Modified Bituminous | Slip-resistant Film | 1.00 (40) | Self-adhering | ‒ | |||
| Henry Company Canada | Eaveguard | SBS Modified Bituminous | Sanded | 1.30 (50) | Self-adhering | ‒ | |||
| IKO Industries Ltd. | Armourgard Ice & Water Protector | SBS Modified Bituminous | Sanded | 1.80 (71) | Self-adhering | For uninsulated wood decks only with slopes of 1:3 (4" in 12") or greater | |||
| Malarkey Roofing Products | Right Start™ UDL | SBS Modified Bituminous | Sanded | 1.40 (55) | Nail-applied | ||||
| Malarkey Roofing Products | Arctic Seal Ice & Water Guard | SBS Modified Bituminous | Sanded | 1.52 (60) | Self-adhering | ‒ | |||
| Owens Corning Canada | Titanium UDL 25 | Polypropylene Synthetic | Synthetic (not stated) | 0.38 (15) | Nail-applied | ‒ | |||
| Owens Corning Canada | Titanium UDL 30 | Polypropylene Synthetic | Synthetic (not stated) | 0.63 (25) | Nail-applied | ‒ | |||
| Owens Corning Canada | Titanium UDL 50 | Polypropylene Synthetic | Synthetic (not stated) | 0.75 (30) | Nail-applied | ‒ | |||
| Owens Corning Canada | Titanium PSU 30 | SBS Modified Bituminous | Synthetic Polymer | 1.10 (45) | Self-adhering | Underlayment Only for roofs 4:12 or greater | |||
| Owens Corning Canada | RhinoRoof U20 | Multi-layer polymer-coated woven synthetic underlayment | Not Stated | 0.18 (7) | Nail-applied | ‒ | |||
| Polyglass USA, Inc. | Polystick MTS | Proprietary Compound | fibreglass mat | 1.50 (60) | Self-adhering | ‒ | |||
| Protecto Wrap Company | Jiffy Seal Ice and Water Guard HT | SBS Modified Bituminous | tri-layer woven polyolefin | 1.00 (40) | Self-adhering | ‒ | |||
| Protecto Wrap Company | Jiffy Seal Butyl Ice and Water Guard HT | SBS Modified Bituminous | tri-layer woven polyolefin | 0.75 (30) | Self-adhering | ‒ | |||
| Soprema Inc. | Lastobond 195 | SBS Modified Bituminous | Sanded | 1.60 (63) | Self-adhering | ‒ | |||
| Soprema Inc. | Lastobond 240 | SBS Modified Bituminous | Sanded | 1.60 (63) | Self-adhering | ‒ | |||
| Soprema Inc. | Lastobond Shield | SBS Modified Bituminous | tri-laminate woven polyethylene | 1.00 (40) | Self-adhering | ‒ | |||
| Soprema Inc. | Lastobond Shield HT | SBS Modified Bituminous | tri-laminate woven polyethylene | 1.00 (40) | Self-adhering | ‒ | |||
| Soprema Inc. | Sopraseal Stick 1100 T | SBS Modified Bituminous | tri-laminate woven polyethylene | 1.00 (40) | Self-adhering |