Tear-Off & Disposal Cost Calculator

How It Works

Tear-off costs add $1,500-$5,000+ to a roofing project depending on material and layers. Most codes allow a maximum of 2 shingle layers before mandatory tear-off. While overlaying saves money upfront, it adds weight, hides deck damage, and shortens the new roof lifespan by up to 20%. Asphalt shingles weigh about 250 lbs per square per layer; tile can exceed 1,000. Always budget for 5-15% deck repair — removing old roofing often reveals rotten plywood, especially around valleys, chimneys, and roof penetrations. OSB replacement runs about $3-5/sq ft installed. Some areas have shingle recycling programs that reduce disposal costs.