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Asphalt-shingle roof and chimney flashing on a Roseville MN home — granule loss check

Defect Library · Roseville, MNCedar-Shake-to-3-Tab Roof Conversions in Roseville

Many original 1960s Roseville ranches had cedar shake roofs. Most were re-roofed with 3-tab asphalt shingles in the 1990s — without upgrading the underlayment, drip edge, or ventilation to current code.

Era
1960s original cedar; 1990s 3-tab retrofit
Key Threshold
3-tab shingles are 15–20 year products; architectural shingles last 25–30
Last Reviewed
May 2026

What is Cedar Shake to 3-Tab Roof Conversion?

Many original 1960s Roseville ranches had cedar shake roofs. Most were re-roofed with 3-tab asphalt shingles in the 1990s — without upgrading the underlayment, drip edge, or ventilation to current code.

What do we find on Roseville inspections?

Granule loss, exposed mat, brittle shingles, missing drip edge, undersized step flashing at the chimney. These roofs are at or past end of life now.

What should you do about it?

Plan a re-roof with architectural shingles, ice-and-water shield to 6 ft past the inside of the wall plate, and modern step flashing.

How this connects to other Roseville defects

Era-defects rarely show up in isolation. A 1965 Roseville rambler that has one of these almost always has two or three more from the same construction window. Our defect library documents the full set we look for, and the inspection report cross-references findings so you can see the pattern.

Related defects in the same era window

Get this checked on your Roseville inspection

Call (651) 666-5602 or request an inspection quote. Cedar Shake to 3-Tab Roof Conversion is included in every standard home inspection we perform. Same-week digital report with photos and prioritized repair recommendations.

Ready for a Roseville Home Inspection?

Same-week reports. Thermal imaging included. Era-specific findings for 1955–1975 ramblers, lakefront walkouts, and new-construction townhomes.

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