Best Roofing for a Shed: Shingles, Metal, Roll Roofing or EPDM

Pitch decides first. Below 2 in 12 only roll roofing, sealed-lap metal and EPDM are allowed on a shed, and above 3 in 12 all four coverings work, so the choice turns on lifespan, weight and effort. In short: roll roofing is the cheapest and shortest-lived, shingles match the house, metal lasts longest with the least upkeep, and EPDM suits flat or nearly flat roofs.

The four coverings compared

Covering Minimum pitch Typical life Cost DIY Weak point
Roll roofing 1 in 12 5 to 10 years, single coverage Lowest An afternoon Short life, damaged by foot traffic
Asphalt shingles 2 in 12, double underlayment to 4 in 12 15 to 30 years About $3.00 to $7.00 per sq ft installed by a roofer A weekend Needs pitch, a sound deck and warm weather to seal
Metal panels 3 in 12, or 1/2 in 12 with sealed laps Often 40 to 70 years About $6.00 to $10.00 per sq ft installed for corrugated A few hours Laps, fasteners and condensation
EPDM rubber 1/4 in 12 Several decades Sold as kits for sheds and garages A day, unforgiving Needs a smooth deck and dry weather

Installed prices come from the cost per square foot guide; doing the work yourself leaves only the materials.

Start with your pitch

A roof shallower than 1 in 12 leaves EPDM, sealed-lap metal down to 1/2 in 12, or standing seam if you hire a professional. Between 1 and 2 in 12, roll roofing joins the list. Between 2 and 3 in 12, shingles come back, with double underlayment. From 3 in 12 up, every covering is open to you. The full limits are in the minimum pitch for each shed roof covering.

Asphalt shingles: when the shed should match the house

Shingles are the covering to pick when the shed sits near the house and the look matters. They are also the easiest to repair, because a damaged shingle can be replaced without touching the rest. They need a solid deck, underlayment and drip edge, and the adhesive strips only seal in warm weather. The method is in installing asphalt shingles on a shed roof.

Metal: long life, little upkeep

Panels run the full length of a small roof, so the job goes quickly, and a shed can often be roofed on purlins without a solid deck, which saves cost. The problems are detail ones: fastener placement, lap direction and condensation under the panels. Thin panels also dent more easily under hail or falling branches. Installing a metal roof on a shed covers them.

Roll roofing: the cheap, short-term cover

Roll roofing suits an outbuilding where a cheap roof replaced every several years makes more sense than an expensive one. It is easy to put down and easy to damage, and it needs 1 in 12 of slope. The steps are in installing rolled roofing on a flat roof.

EPDM: for the flattest roofs

On a small roof one sheet of rubber covers everything with no seams, which is why it is the dependable choice for a roof that is nearly flat. The deck has to be smooth and dry, and the two adhesives each have a job. See installing a rubber EPDM roof.

What the shed can carry

Shingles are the heaviest of the four, and an older or lightly framed shed may not suit them. Metal and EPDM are far lighter. The roof weight calculator compares them for your roof area.

Cost over time, not just at purchase

The cheapest covering to buy is rarely the cheapest to own. Over 40 years a single-coverage roll roof is replaced four to eight times, once or twice for shingles, and at most once for EPDM or metal. The roof lifetime cost calculator divides the price by the expected life, and which roofing material costs least over time explains why the answer so often favors the dearer roof.

More shed roof guides

Working out quantities and pitch? The shed roof calculator, shingle bundle calculator and drip edge calculator do the arithmetic.

Conclusion

The best roofing for a shed is the one your pitch allows and the shed’s frame can carry, judged on cost per year rather than purchase price. For a steep, well-built shed near the house that is usually shingles; for a remote shed that must be left alone, metal; for a flat roof, EPDM; and for a cheap cover that will be redone, roll roofing.

Luca Clements

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