Our Customer Reviews

  • I wanted to send a special thanks to Fermin for the recent roof replacement West Coast Roofing completed for me. The entire process was fast easy and painless. You have definitely earned a customer for life!!!
    Thanks Fermin!!!

    Alex Hernandez

  • Mr. Soriano,
    I would like to compliment you & your team of experts. They did an excellent job. The way they cleaned up after the job was done was a pleasant surprise for me. On top of that completion of the job in a single day was a real plus. I wish every business ran as smoothly as yours, courteous, fast & professional. I would recommend your company to all my friends and would definitely vote you as the best roofing contractor in Portland.
    Thank you for a job well done!
    - Frank


  • My husband and I are so pleased with the siding and roof that was done by West Coast Roofing. Our house looks beautiful! Their crew did a wonderful job. They arrived on time, were professional and courteous, and were very skilled. They cleaned the entire work area before departing. I’m delighted with every aspect of the work. Please share this letter with any person interested in West Coast Roofing. I would be happy to refer your company. Thank you once again for doing such a wonderful job.
    Samantha Holmes

  • What an amazing job your company did! You recently replaced my roof and installed new windows and siding. I have to admit, I was a little nervous going into this. (You always hear such horrible home improvement stories.)
    From beginning to end, everyone I had dealings with was helpful, professional and courteous. West Coast Roofing made my first home improvement experience an unforgettable one, not to mention that the work performed is top notch.
    Jeffrey Brown

  • I would highly recommend West Coast Roofing! We knew our 30 year old roof needed to be completely replaced and had several estimates. Jimmy explained exactly what needed to be done and quoted a very fair price. I had already read several reviews online for the company and felt completely comfortable with the bid. The work was completed sooner than expected, the workers were all professional and courteous, and the cleanup afterwards was outstanding. Thank you for your outstanding service!
    Teri Hill

  • I recently sold my home and had to replace the roof. It being a low slope roof I was very particular about the products used. After getting an estimate from Jimmy, his crew came in removed the old 3 layers, replaced some rotted boards and laid the new TPO/PVC type roof. They worked very quickly wanting to beat the rain forecasted. Within 3 days the new roof was in place. The day after they completed the roof they returned to pick up any debris left from the day before. I would recommend West Coast Roofing for their efficiency and the detail to the clean up after. Thank you guys. I’m sure the new owners are as appreciative as I am.

Roofing Terminology V-Z

VALLEY- A term applied to a depressed angle formed by the meeting of two inclined slopes of a roof.

VAPOR- The gaseous form of any substance.

VAPOR MIGRATION- The natural movement of water vapor from regions of higher vapor pressure to regions of lower vapor pressure.

VAPOR PRESSURE- The pressure at which a liquid and its vapor are in equilibrium at a definite temperature.

VAPOR RETARDER- A material used to restrict the passage of water vapor through a roof assembly.

VEINING- The characteristic lines or "stretch marks" which develop during the aging process of soft bitumens. Veneer- Any of the thin layers of wood glued together to make plywood.

VENT- An opening or device used to permit air or vapors to exit an enclosed structure.

VENT PIPE- A vertical pipe of relatively small dimensions which protrudes through a roof to provide for the ventilation of gasses.

VENTILATION SHORT CIRCUIT- The disruption of air flow in an intake-exhaust ventilation system. For instance, if vents such as turbine vents or gable vents are placed in between the intake vents and exhaust vents (such as soffit and ridge vents) then the draw created by the stack effect will be disrupted and the ventilation system will be much less effective.

VENTILATOR- Device installed on the roof for the purpose of ventilating the interior of the building.

VENTING- The process of installing roof vents in a roof assembly to relieve vapor pressure, OR the process of water in the insulation course of the roof assembly evaporating and exiting via the roof vents.

VERMICULITE- An aggregate somewhat similar to perlite that is used as an aggregate in lightweight roof decks and deck fills. It is formed from mica, a hydrous silicate.

VERTICAL APPLICATION- Roll roofing laid parallel to the slope of a roof.

VISCOSITY- The internal frictional resistance offered by a fluid to change of shape or to the relative motion or flow of its parts.

VULCANIZE- To improve the strength, resiliency, and freedom from stickiness and odor of rubber, for example, by combining with sulfur or other additives in the presence of heat and pressure.

WALKWAYS- Designated areas for foot traffic on roofs.

WATER ABSORPTION- The increase in weight of a test specimen expressed as a percentage of its dry weight after being immersed in water for a specified time at a given temperature.

WATER GUARD- A turned up edge on valley metal or continuous wall flashing; used to prevent water migration under the roof system.

WARM WALL- The finished wall inside of a structure, used in roofing to determine how to install waterproof underlayments at eaves.

WARRANTY- The written promise to the owner of roofing materials for material related problems.

WATER STOP- A device designed to protect the exposed edge of a partially installed BURM from water entrance.

WATERPROOFING- The process where a building component is made totally resistant to the passage of water and/or water vapor.

WATER VAPOR- Moisture existing as a gas in air.

WEEP HOLE- A hole that allows for drainage of entrapped water from masonry structures.

WELD- The joining of components together by fusing. In thermoplastics, refers to bonding together of the membrane using heat or solvents.

WIND UPLIFT- The upward force exerted by wind traveling across a roof.

WRINKLE- A raised pattern of ridges running in a random fashion in a BUR.

ZINC- A bluish-white, lustrous metallic element that is brittle at room temperature but malleable with heating. It is used to form a wide variety of alloys including brass, bronze, various solders, and nickel silver, in galvanizing iron and other metals, for electric fuses, anodes, and meter cases, and in roofing, gutters, flashings, edge metals and also for various household objects. Atomic number 30; atomic weight 65.37; melting point 419.4 °C; boiling point 907 °C; specific gravity 7.133 (25 °C); valence 2.

ZONOLITE- A lightweight, insulating concrete composed of portland cement, water, and vermiculite aggregate.



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