Roofing materials

Squares and panel system to an installed range, with the panel and trim takeoff.

squares · panel type · range

Open

Area, membrane, tear-off and deck repair to an installed low-slope range, with the takeoff and service life.

sq ft · membrane · range

Open

Rolls of felt or synthetic plus ice-and-water membrane, with the double layer below 4:12 and the 24 in eave rule.

squares · rolls · lin ft

Open

Asphalt shingle cost per square

Material-only and installed cost for 3-tab, architectural and designer shingles.

9 min

Metal roof cost by panel type

Exposed-fastener, standing seam and metal shingles against installed cost per square.

10 min

Standing seam metal roof cost

Panel width, clip type and site-formed versus shop-formed, and what each does to the bid.

8 min

Slate roof cost: natural and synthetic

Per-square installed cost, the structural load question, and where synthetic pays.

8 min

How long asphalt shingles actually last

Rated life against observed life, and the four things that shorten it most.

7 min

Roof underlayment types

Felt, synthetic and ice-and-water membrane — where code requires each one.

7 min

Asphalt shingles vs metal roof

Installed cost, service life, dead load, warranty and minimum pitch — side by side.

Architectural vs 3-tab shingles

The two asphalt grades compared on cost per square, wind rating and life.

Tile roof vs shingle roof

Concrete and clay tile against asphalt: dead load, framing, cost and climate fit.

Standing seam vs exposed fastener metal roof

Concealed clips against screws through the face: movement, upkeep, slope, gauge, warranty and cost.

OSB vs plywood roof sheathing

Span ratings, thickness by rafter spacing, H-clips, edge swell and what shingle warranties ask of the deck.

TPO vs EPDM roofing

Low-slope membranes compared on seams, code standards, service life and installed cost.