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  • Writer's pictureRobert Galiszewski

Roof Installation 101 - What to Expect During a Roof Replacement

Having your home's roof replaced is a major project that involves coordinating various materials, crews, and equipment. While it may seem daunting, understanding the typical process can help things go smoothly. Here's an overview of what to expect:


First, your roofing company will ensure they have all materials delivered and ready, including shingle/tile bundles, underlayment, drip edge, vents, nails, and safety equipment. Surrounding areas will be protected with tarps to catch any falling debris.


The existing roof covering and underlayment will be fully removed and disposed of, leaving just the bare roof deck exposed. Any damaged wood decking will be repaired or replaced.

Leak Barrier

A waterproof underlayment or ice/water shield is installed at pitch areas like eaves and valleys to prevent future leaks. These are critical protective layers.

Drip Edge and Vents

New metal drip edging is installed at all edges and rake areas to help water drain properly. Any pipe vents or box vents are also installed or replaced at this stage.


A full underlayment cover is installed across the entire roof deck as the base layer protection.

Shingle/Tile Installation

The new roofing material (shingles, tiles, metal, etc.) is installed in overlapping rows from the eaves up to the ridge. This involves many individual pieces installed by hand.

Flashing and Details

Any areas needing flashing are completed last, including ridge vents, chimneys, skylights, and wall step flashing. Thorough sealing is key.


The project wraps up by carefully removing any remaining debris and materials from the property.

For an average asphalt shingle roof, the full tear-off and replacement process takes 1-3 days with a skilled crew. More complex jobs like tile roofing can take 1-2 weeks.

The team at R&G Remodeling and Roofing consists of highly trained, experienced installers to ensure your new roof is installed properly and built to last. Contact us today at 412.758.4218 to begin your roof replacement process!

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