How to stop a chicken coop roof dripping in winter

Work out whether the water in your coop comes from condensation or a real leak, then fix each one. It suits anyone with a metal-roofed coop that gets wet bedding and dripping birds in cold weather. You only need a stepladder, a glass of ice water and a few cheap materials.

Your Coop Is Dripping on Your Hens — The Plain Fix Before Winter, by Ezra Stutzman on YouTube. 22 min 14 s.

Video length
22 min 14 s
Time to do it
2 hours
Difficulty
Medium
Steps
9

What you need

Steps

  1. Before climbing anything, look at the rafters. Dry stripes running down the framing with wet patches between them point to condensation, not a hole.

  2. Check the screw heads. If water beads on the screws while the board beside them stays dry, the moisture is forming on cold metal inside the coop.

  3. Hold a glass of ice water against the inside of the roof or window. If moisture forms on the room side, the surface is below the dew point and you have sweat, not a leak.

  4. Squeeze a handful of bedding. If it crumbles it is dry enough. If it balls up and holds together, the coop air is too wet.

  5. For condensation, warm the cold surface instead of sealing the room. Fit foam board between the roof bays and board the ceiling with straw on top.

  6. Add anti-condensation backing under the metal so drips run to the edge instead of falling on the birds.

  7. If you suspect a leak, stand inside the coop during a daytime rain with the light off. Watch for bright lines of daylight or running water and trace them back to the roof.

  8. From a stepladder, check the suspect screws and seams. Replace loose screws with washered roofing screws and seal only the spots that actually leak.

  9. Keep bedding dry and replace sodden bedding promptly. Damp bedding adds moisture to the air and makes the dripping worse.

Tips and common mistakes

Do not caulk every seam on a roof that is only sweating. Sealing the coop tight traps moisture and makes condensation worse.

Insulation moves the problem rather than solving it. It will not fix a real hole, so find leaks first.

Have someone hold the stepladder and keep the coop door open for light while you work.

A cheap hygrometer gives you a number to watch, but the squeeze test is enough to start.

Questions

How do I tell condensation from a leak?

Look for dry stripes over the rafters and beaded screw heads with dry boards beside them. Those signs mean condensation. Bright daylight lines or water running down from one spot during rain mean a leak.

Will sealing the coop stop the dripping?

No. Sealing traps moist air inside and can make condensation worse. Warm the cold surfaces with insulation and keep the bedding dry instead.

Do I need to insulate the whole coop?

Start with the roof, since that is the coldest surface the moisture hits. Foam board in the bays and a boarded ceiling with straw on top is the plain fix.

This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.

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