These are some of the most common questions we are asked at Evergreen Roofing. If your question is not addressed, please give us a call. We are happy to answer your questions.

Q: What types of roofing are available?

A: We offer roofing systems by all the leading manufacturers of composition, metal, cedar, tile and singe-ply materials.


Q: How do I select a roofing contractor?

A: The best way to protect your home, rental property or commercial property when selecting a roofing contractor is to educate yourself. The following tips are suggested guidelines for evaluating and selecting a qualified roofing contractor.

  • Consider referrals from friends, family members, co-workers, lumberyards, and general contractors.
  • A permanent place of business and a telephone in the business' name.
  • Federal tax identification number.
  • Business license number—In Oregon call the Construction Contractor's Board (CCB) in Salem 503-378-4621, or visit their website at The CCB can verify license numbers, whether a contractor is bonded and insured, and reveal previous claims brought against the contractor and if they have been resolved.
  • Call your local Better Business Bureau to check on possible complaints filed against the contractor. In Oregon call 1-800-488-4155 or visit their website at
  • Ask for proof of liability and worker's compensation insurance. Note: If the contractor is not properly insured, you may be liable for accidents that occur on your property.
  • Always insist on a detailed written proposal. Do not assume a vague proposal will include details from verbal agreements.
  • Check to see if the contractor is a member of any regional or national industry associations, such as the National Roofing Contractors Association ( Membership in industry associations demonstrates a commitment to professionalism.
  • Ask the contractor to explain their procedures for quality control, job supervision, safety practices, and clean up.

Q: What warranties are offered?

A: A roofing materials warranty is only as good as its manufacturer. Some manufacturers have an up-front warranty for the first through the fifth year. They will pay for labor and materials to replace any defective shingles. The roof must be installed to a manufacturer's specifications to qualify for the warranty. Most warranties are transferrable to new property owners with the payment of a simple transfer fee.


Q: Must I be home during the roofing project?

A: We do our utmost to protect customer property during the owner's absence. Rarely is it necessary that a building owner be present provided we have a contact phone number. A pre-job meeting to discuss any questions or concerns you may have or draw our attention to special circumstances related to your project is often helpful.


Q: Is removing my old roof required?

A: Usually it is best, but not always. Complete removal allows us to access the roof's substructure. Dry rot and pest infestation are often found at tear off when these they can be promptly addressed. Irregularities in the existing roof will often show through new roofing. Note: local building codes limit the number of layers with some types of roofing materials.


Q: Can my roof be done in winter or during bad weather?

A: Evergreen Roofing does roofing all year round. It usually only takes 3-6 hours to actually tear off the existing roof and apply watertight felt paper. From start to finish, a roof is usually completed in 2-3 days. The new roof itself can often be installed during inclement weather.


Q: Are your estimates free and how long are they valid?

A: Estimates are free. Past 30 days, it is best to call us; an estimate will usually be good beyond 30 days, depending on material costs.


Q: How do I treat moss on my roof?

A: Moss is a common problem in the Willamette Valley. There are two options for moss removal on most roofs: sweeping the moss off directly, or applying a "moss killing agent, sprinkling a powder over the problem areas which dries out the moss. Twice yearly cleanings will keep moss problems under control.


Q: What maintenance is needed for my shake roof?

A: As with all roofs, keeping debris cleared so that water sheds toward the drains is the most important maintenance item, this being especially true with shakes or wood shingles. Allowing debris to accumulate not only impedes proper water flow, but also encourages dry rot, deteriorating the wood and accelerating the loss of natural life.


Q: What are my options for a flat roof?

A: We consider a "flat" roof to be a pitch of 3/12 or less. There are methods available to apply standard roofing to lower pitches. In some cases, a special waterproofing underlayment may be applied, however, it is best to go with a roofing system designed for completely flat surfaces. After assessing your situation, we would be more than happy to advise you on the best options.


Q: How do if know if my structure can support the weight of a tile roof?

A: Many existing roof substructures will support a new tile roof. It is highly recommended that an engineering analysis of the current structure is made to determine if tile is a viable option.


Q: Will my landscaping be damaged during re-roofing?

A: Evergreen Roofing employs procedures for preventing most roofing debris from reaching the ground. We take great pride in leaving your property and landscaping in pristine condition.