venting shed?

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Old 04-12-15, 07:39 AM
Q
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venting shed?

Small shed on the side of the house gets a bit damp in the spring due to meltwater.
It has no venting.
I was thinking of just cutting a hole in the cladding and adding a mosquito net plus chicken wire to stop bugs and rodents. What goes on the outside to stop rain entering and at what height should the vent go?
Do I need a vent on each end of the shed? It's only about 50sq ft.
 
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Old 04-12-15, 07:43 AM
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Got a picture?
We have no idea about what type siding, roofing, shape of the roof.
 
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Old 04-12-15, 08:22 AM
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If you plan on installing a couple gable end vents, you should buy an actual louver (vinyl or aluminum) that will come with screen. The louvers shed the rain.

If you want to install a ridge vent, it would involve taking off the ridge cap shingles, cutting the plywood away from the peak (so that you either have a 2" gap [if no ridge board] or a 1" gap on either side [if there is a ridge board]) and then you would either install a few sections of ridge vent and new shingles on top... or a preformed metal ridge vent.

If it is sweating inside the shed, just adding venting will probably not solve the problem. If you have snow on the roof, when it warms up in the spring and the dewpoint rises above 32F, the roof is going to sweat inside and no amount of venting will prevent it. The solution is to clean the snow off the roof.
 
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Old 04-13-15, 06:44 PM
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It's more because snow melt sometimes gets through the concrete wall and onto the floor.

I want to make sure the floor dries up and any water/dampness didn't get into the main house.
http://s2.postimg.org/3yymb5349/IMG_..._124921544.jpg
http://s11.postimg.org/x27t2etbn/IMG..._124929364.jpg

Rounded cladding on outside.
Studs and plywood on inside with stepped concrete walls.
 
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Old 04-13-15, 06:50 PM
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It's more because snow melt sometimes gets through the concrete wall and onto the floor.
IMO a vent will not be very helpful in that situation.

The solution would be to address the runoff (either the ground level around the shed or maybe gutters and downspouts to direct roof melt away- if your underground drain tile is frozen, water coming down the downspout probably backs up where the downspout meets the 4" corregated) and/or waterproof the foundation. Or maybe it's a siding/flashing issue. None of the pictures really help us understand where the water is coming from.
 
 

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