Portland Metro Area : 503-667-0175503-667-0175 503-667-0175
Seattle Metro Area : 253-589-8999253-589-8999 201-594-0900

At McDonald & Wetle, we have several decades of experience providing commercial and industrial roofing solutions throughout Oregon and Washington. We’ve been in business since 1921 and commit ourselves to the satisfaction of our commercial customers. In addition to standard commercial roofing services, we also offer waterproofing, maintenance and repairs to existing roofs.

To meet our customers’ demands, we have an extensive list of roofing services. One of the primary industries we service is governmental organizations.

Government Roofing

Government roofing projects often must meet specialized standards to ensure buildings stay dry and well-insulated and meet certain local and state code requirements. From longstanding roofing options such as built-up, single-ply and composition roofing to more innovative alternatives, including slate tile roofs, eco-green roofs and solar tiles, the roofing professionals at McDonald & Wetle have the knowledge and experience to help you choose the right type of material for government roofing installation projects.

Roofs For Government Buildings

Government buildings are typically similar in construction to other commercial roofs, but the contracting requirements may be more demanding. We provide services for any government entity, ranging from small and large municipal centers and township buildings to state and federal complexes.

Roofing Options

Our government building customers have many roofing material options to choose from, each of which provides its own benefits when it comes to insulation and waterproofing.

  • Built-Up: Commonly referred to as “tar and gravel” roofs, built-up roofs have been in use for more than 100 years. The process involves alternating different materials to form a finished membrane designed to keep out water,
  • Modified Built-Up: This method combines asphalt with polymers to create a rugged, weathertight design.
  • Single-Ply Roofing: Commonly used on flat and low-slope commercial buildings, this roofing type helps prevent water damage in a damp climate, important for our customers in the Pacific Northwest.
  • Composition Roofing: This type of roofing is designed with a fiberglass mat that’s coated with asphalt and embedded with ceramic granules. It’s one of the most affordable roofing options available and while it mimics the look of asphalt shingles, composition roofing often lasts much longer, up to 50 years.
  • Slate Tile Roofing: It’s not unusual for this type of roof to last 100 years or more, making it a great choice for commercial and government buildings. It’s maintenance-free and provides energy-efficient insulation qualities.
  • Eco-Green Roofing: Often called living roofs, eco-green roofing utilizes vegetation as its roof surface and is built with at least five unique layers. Since much of the Pacific Northwest receives significant rainfall each year, eco-green roofs are an excellent choice for managing water runoff.
  • Solar Roofs: Solar roof tiles function like traditional roofing materials, but they have the added benefit of converting solar energy into electricity that your government organization can utilize.


When installing new roofs on government buildings or repairing existing ones, safety is always our number one priority. We recognize that roofing is a dangerous industry by nature, so we work hard to minimize as many hazards as we can. This is evident with our workers comp mod rate at .65! – one of the lowest for any contractor in the state.

Contact McDonald & Wetle For Government Roofing Installation

Whether you’re updating an existing government building roof or beginning new construction, our team of professional roofing experts can help you choose the right roofing material for your project to ensure the job is done right. Contact us in Seattle at 253-589-8999 or in Portland at 503-667-0175.

Contact Us
McDonald & Wetle

Portland Metro Area

2020 NE 194th Avenue, Portland
OR 97230, USA
Phone: 503-667-0175 503-667-0175
Hours of Operation:
Monday-Friday 8am to 4pm

Seattle Metro Area

9420 39th Avenue, Lakewood
WA 98499, USA
Phone: 253-589-8999 253-589-8999
Hours of Operation:
Monday-Friday 8am to 4pm

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