Low pitch - flat roofing Vancouver, BC | SBS, Torch On Roofing Contractors!


Commercial Roofing VancouverLow pitch - flat roofing Vancouver, BC | SBS, Torch On Roofing Contractors - Pac West Roofing Inc has been serving Greater Vancouver since 1990. we have a specialized division that services low-rise commercial flat or low pitch roofing and multi-family flat roofing. Our flat roofing crews have been trained in various types of low pitch or flat roof systems and will install a quality roof; from start to finish, that is completed on a timely basis.

we are a professional commercial roofers and contractors. with full jobsite supervision and experienced commercial roofers and roofing teams delivering quality workmanship, we work closely with Building Managers and Property Managers and Strata Corporations to provide reliable results. from townhouses to big office buildings and retail projects, we fully understand and respect the concerns of your tenants when it comes to access and inconvenience. That's why we work efficiently and in close cooperation with building and property managers to ensure that the commercial roofing job is done right and with quality, and with the minimum possible disruption to occupants.

tar and gravel roofing vancouverPac West Roofing Vancouver flat roofing projects include both new Low pitch or flat roof construction and low pitch or flat roof replacement. Our focus on flat roofing has allowed us to provide exceptional services in the area of new roof constructions, roof installations, roof repairs, roof restorations, roof maintenances and re-roofing on flat roofs in Vancouver Lower mainland BC, Canada.

Pac West Roofing specializes in the low pitch roofing or flat roofing application of modified bituminous sheet, Torch-on modified bitumen, tar and gravel roofing, EPDM roofing (E.P.D.M. Rubber), TPO roofing (Thermoplastic Polyolefin), SBS roofing (S.B.S. membrane) systems and built-up roof (BUR) systems. these are low pitch roofing, flat roofing and low slope roofing systems. these systems are designed for their strength and durability. Other low pitch, low slope, flat roof systems we provide are green roofing, asphalt  roofing, metal panel roofing, cedar roofing, steep sloped roofing and steep pitch roofing in Vancouver, BC.

We have a wide range of high quality and durable roofing products to fit various budgets, and our entire range of commercial roofing services and products is available to our commercial roof customers, along with the same Pac West Roofing Contractor guarantees.

At Pac West Roofing Inc we know that experienced craftsmanship is the single most important ingredient in insuring the quality of a roof. Customer satisfaction is our guarantee, backing up our work with top warranties in the roofing industry.

All commercial roofing services at Pac West Roofing inc is with roofing industry leading warranties!

$5,000,000 Liability Insurance and WBC Coverage Best Warranties in the Commercial Roofing Industry Vancouver, BC


For more information about your roofing, please choose your roofing types: Commercial roofing and industrial roofing or Residental Roofing in Vancouver


SBS Roofing Vancouver

[Modified Bitumen Roofing (SBS or APP)]

SBS Roofing Vancouver
A modified bitumen membrane (MBS) roof is a system developed by taking the qualities of a BUR system along with the qualities of a single-ply roof. A standard MBS roof system should have a base sheet or ply, similar to the BUR system, then a waterproofing sheet similar to single-ply

To break it down, a modified bitumen membrane is composed primarily of polymer-modified bitumen reinforced with one or more plies of fabric such as polyester, fiberglass, or a combination of both. Factory surfacing, if applied, includes mineral granules, slag, aluminum, or copper. 

Modified bitumen's generally use a traditional waterproofing medium -- asphalt -- modified with atactic polypropylene (APP), styrene butadiene styrene (SBS), synthetic rubber, or other agents that will enhance the asphalt properties. APP and SBS are the most common bitumen modifiers.

The most common modified bitumen's are:

  • SBS (Styrene-Butadiene-Styrene) modifies the asphalt by forming a polymer network within the bitumen. SBS gives the bitumen rubber-like characteristics and improved resistance to aging and weathering. Most SBS modified bitumen sheets are either set in hot mopping asphalt, torch-applied, or adhered with cold-process adhesives. SBS modified bitumen sheets that do not have factory applied granule or foil surfacing need some form of field-applied ultraviolet protective coating.
  • APP (Atactic Polypropylene) is a thermoplastic polymer, which forms a uniform matrix within the asphalt. This enhances the bitumen's performance by increasing its UV resistance, increasing its flexibility at low temperatures, and improving its flow resistance at high temperatures. APP modified bitumen sheets are generally applied using a propane-fueled torch. Applicators use the heat to soften the modified bitumen on the underside of the sheet. The sheet's bottom surface becomes a molten adhesive, which flows upon the substrate and then cools to form a waterproof adhesive bond. Some APP sheets can also be applied with cold-process adhesives.

    • Base sheet/shingling of felts

    MBS are not considered a built up roof but considered a single-ply. Still it is encouraged to install a base sheet/underlayment. Similar to the built up roof systems, a contractor should apply one of the following:

    • Standard glass-fiber felt (2-ply fiberglass platform (minimum) or a 3-ply base)
    • Coated glass-fiber felt
    • Coated organic felt
    This is to protect the roof system from any water penetration and protect the insulation from the heat of the torch. After the plies have been installed then the MBS roof system can be installed. For the reasons mentioned above we have classified the MBS roof system as a built up roof.

    Surfacing
  • Mineral granules
  • Metallic foil
  • Asphalt (hot or cold applied)
  • Heat-reflective coatings




    • Torch on Roofing Vancouver


    This general specification is for the installation of a three-ply memrane system used in new construction and reroofing applications over nailable deck types (ie plywood).



    A.) Fiberglass Base Sheet: This is the first layer which is nailed to the deck using simplex nails (nails with a large washer like head).
    B.) Torch-on Base Sheet: This is the second layer. It is torched down to the fiberglass base sheet. Flat Roofing Vancouver
    C.) Torch-on Cap Sheet:
    This is the third layer. It is torched down to the torch-on base sheet and it will have a granular surfacing is the membrane's protection against ultra-violet light.
    Bird House Vents: These vents let the air circulate through the rafters to remove moisture and heat.

    Plumbing Stacks:
    A Flashing which allows breather pipes for your plumbing  to pass through the roof. From the ground they appear to be a pipe sticking up through the roof.

    Roof Drains:
    These copper drains allow water to drain from the roof through the soffit (roof overhang) to down pipes attached to the exterior wall of the house.

    Scupper Drains: These copper drains allow water to be drained from the roof to the downpipes without going through the soffit.

    B-Vent Flashing: This a flashing for your furnace or chimney.

    Metal Flashings: All our metal flashings ar made from 28 guage metal whicb come prepainted with a baked enamel finish that won't rust!




    Get a free estimate for re-roof, new roofing, roof installations, roof repairs, roof maintenances to fit your budget

    Learn more about the Pac West Roofing - Roofing Company in Vancouver BC and how we can help you - Call us today at 778-908-2911 to request a free estimate for your roof, or visit contact us page.


    Low Pitch Flat Roofing Vancouver, Roofing Companies in Vancouver, Flat Roofing Contractors in Vancouver, Flat Roofer in Vancouver


    Pac West Roofing Vancouver build and serves all kind of roofs including; commercial roofing, residental roofing, Industrial roofing, green roofing, low pitch roofing, flat roofing, tile roofing, SBS roofing, cedar roofing, asphalt roofing, metal panel roofing, torch-on roofing, steep slope roofing, TPO roofing, low slope roofing, metal cladding roofing, EPDM roofing, Tar and gravel roofing, steep pitch roofing Vancouver.

    Pac west Roofing inc is your local Vancouver roofing company. we serve all Vancouver Lower mainland, BC. you might interested in these pages:


    Vancouver Roofing, Roofing company Vancouver, Burnaby Roofing company, Surrey roofing company, Richmond roofing company, Mission roofing company, North Vancouver roofing company, Coquitlam roofing company, Abbotsford roofing company, West Vancouver roofing company, Delta Roofing company, New Westminster roofing company, Port Coquitlam roofing company, Chilliwack roofing company, Langley roofing company, Port Moody roofing company, Belcarra roofing company, Maple Ridge roofing company, White Rock roofing company, Pitt Meadows roofing company, Tsawwassen roofing company, Ladner roofing company, lower mainland BC - British Columbia roofing company.

    Low Pitch - Flat Roofing Vancouver | SBS, Torch on Roofing Contractors | Pac West Roofing | Lower Mainland, BC, British Columbia, Canada



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