1. Roof Pitch

• What it means: The angle or slope of the roof, usually measured as a ratio (e.g., 4:12).

• Why it matters: Steeper roofs shed water better and typically last longer. Pitch can affect the cost of repairs or replacement and may determine material types.

2. Shingles

• What it means: The individual overlapping pieces that cover the roof. Asphalt shingles are most common, but you’ll also see metal, tile, or cedar shake.

• Why it matters: Age, condition, and material type impact a home’s value and appeal.

3. Flashing

• What it means: Thin metal pieces used to prevent leaks around chimneys, skylights, and vents.

• Why it matters: Improper or damaged flashing is a common source of leaks that inspectors flag.

4. Underlayment

• What it means: A protective layer between the roof deck and the shingles (often felt or synthetic material).

• Why it matters: Provides moisture protection. Missing or deteriorated underlayment can lead to rot and mold.

5. Roof Decking (or Sheathing)

• What it means: The structural base for the roof, usually made of plywood or OSB.

• Why it matters: If it’s rotted or water-damaged, it must be replaced during a re-roof—adding cost.

Inspection & Maintenance Terms

6. Roof Certification

• What it means: A document issued by a licensed roofer stating the roof is in good condition and should last a certain number of years.

• Why it matters: Some lenders or buyers request this as part of the sale, especially for older roofs.

7. Soft Spots

• What it means: Areas where the roof feels spongy underfoot—indicating water damage or rot.

• Why it matters: These often require structural repair and can delay a closing if not addressed early.

8. Granule Loss

• What it means: When the gritty coating on asphalt shingles wears off.

• Why it matters: A sign of aging shingles and a potential future replacement.

Terms You Might Hear During a Real Estate Transaction

9. Overlay

• What it means: Installing new shingles over existing ones.

• Why it matters: It’s cheaper but can void warranties and hide problems. Many buyers prefer a full tear-off for peace of mind.

10. Tear-Off

• What it means: Removing all old roofing materials before installing new ones.

• Why it matters: Often preferred for a clean install and required by building code in some areas.

11. Roof Ventilation

• What it means: Systems (like ridge vents or attic fans) that allow airflow under the roof.

• Why it matters: Poor ventilation leads to heat and moisture buildup, which shortens the roof’s lifespan.

How This Helps You as a Realtor

• Better Listing Descriptions: Accurately describe the roof’s age, material, and condition.

• Smoother Negotiations: Know when a repair is minor or when a full replacement is likely needed.

• Faster Closings: Avoid surprises during the inspection phase by spotting red flags early.

Partner With a Roofing Pro

At Hawthorne General Construction, we offer free consultations and pre-listing roof inspections for Portland-area agents. Whether you’re helping a client prepare their home for sale or advising a buyer on what to look for, we’re here to be your go-to roofing resource.

Need a roof inspected or certified? Contact us today at 971-500-5190 / email adam@hawthornegeneralconstruction.com