Metal Barn Roofing — METCO Metal Building Supply
Pole Barn & Agricultural

Metal Barn Roofing

Metal barn roofing has different demands from a house roof — wider purlin spacing, longer runs, ammonia and moisture from livestock, and nobody up there inspecting it twice a year. Panels cut to length, with fastener and closure specs that suit how barns are actually built.

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Cut for long slopes

Single-run panels, no horizontal laps.

Spec'd to your purlins

Gauge advice based on your actual spacing.

Livestock-grade fasteners

Ammonia and humidity kill cheap screws.

Matching barn siding

Same steel and colour for walls.

Ag pricing

Volume rates for farm and contractor orders.

28 lots

Collect locally across NC, SC and VA.

Purlin spacing drives the gauge decision

Barns and pole barns are typically framed with purlins further apart than a decked residential roof. Wider spans mean the panel is carrying more between supports, which is the one genuine argument for stepping up from 29-gauge to 26-gauge. Tell us your purlin spacing and we will tell you whether the upgrade is worth it for your framing or whether it is money better spent on screws.

Livestock buildings are corrosive environments

Ammonia from manure, combined with humidity, attacks fasteners and coatings faster than ordinary weather. In livestock buildings the failure sequence is usually washers perishing, then screws backing out, then water at the fastener holes. Ventilation helps more than any panel upgrade, and fastener quality matters more than gauge. This is not a place to buy the cheapest screws available.

Long runs and single panels

Barn roofs are often long slopes. Because we cut to order, a 40-foot run can go up as one continuous panel rather than two lapped pieces — no horizontal seam, nowhere for chaff and debris to collect, and one fewer leak path repeated across the whole building. On agricultural buildings that is usually the single biggest practical advantage of buying from a roll-former.

Specifications

Coverage
36" net per panel
Gauges
29-gauge standard, 26-gauge for wide purlins
Length
Cut to order, long single runs
Applications
Pole barn, equipment shed, livestock, hay
Fasteners
Bonded washer, corrosion resistant
Matching siding
Available in same colour run

Common Questions

What gauge metal roofing is best for a pole barn?

29-gauge is standard and correct for most pole barns. If your purlin spacing is wide, 26-gauge resists deflection between supports and is worth considering. Tell us the spacing and we will give you a straight answer rather than defaulting to the upsell.

How long do metal barn roofs last?

Decades, with the caveat that fasteners and closures usually fail long before panels do. In livestock buildings, ammonia and humidity accelerate that — good ventilation and quality fasteners extend service life far more than heavier steel does.

Can I get metal barn roofing in one long piece?

Yes. We cut to order, so a 40-foot slope can be a single 40-foot panel with no horizontal lap. On agricultural buildings that removes a repeated leak path and stops debris collecting in seams.

Do you supply matching siding for barns?

Yes, in the same steel and the same colour run so walls and roof genuinely match. Remember the two panel lengths differ — roof is rafter run, siding is wall height.

Related

Agricultural BarnsPole Barn BuilderMetal Roofing PanelsMetal Siding Panels

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Tell us the size, your county and what you are storing. We quote from current steel pricing — no obligation, and we will tell you if a different size suits you better.

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