Roof Ridge Ent Something Eating Plywood

Multiply it by 18 square inches the net free air per foot of ridge.

Roof ridge ent something eating plywood.

If when inspecting from the attic and looking up into the slot of removed plywood at the ridge of the roof you see the under side of a roof shingle either the roofer made the ridge vent a bit longer than needed or something else is going on that we d need to check from outside. Ways to work on a steeply pitched roof. Most roofs will be sheathed in plywood at least 3 8 inch thick. So i ll start by saying something that might sound controversial but really isn t.

Instead of putting the vent square on the ridge open to either side place it only on the downwind side of the roof assuming consistent prevailing winds. This option appeals to me. Roofers use a circular saw to cut a long slot along the roof ridge if there isn t one then cover it with a plastic flap as shown or a flexible vinyl matrix. Vents evenly spaced underneath the roof provide intake.

A vented attic where insulation is placed on an air sealed attic floor is one of the most underappreciated building assemblies that we have in the history of building science. Shingle obstructed ridge vent warning. Since exhaust and intake must be equal 450 square inches of total intake is required as well. As sharptooth said it will delaminate in no time if not covered.

But the idea is that it would evaporate without falling down onto the insulation below. Be confident about your roof s performance. A shallow v trough inside the roof just under the peak ridge to catch any infall. Avoiding problems with ridge vents is easy when you schedule an annual roof inspection.

So much information has been devoted to the subject of roof venting that it s easy to become confused and to lose focus. Block the ridge vent with fiberglass in the winter. Something tells me this would be worse than the original problem 3 use a half ridge vent. Openings along the sides allow air out of the attic cooling the space and lowering your air conditioning bill.

You can use any cheap plywood or even particle board as a short term sheathing on a shed roof but cover it with a layer of rolled roofing. This gives you 450 square inches of total exhaust. During the evaluation the roofing contractor will not only assess the condition of the ridge vents but he will also identify issues with shingle wear damaged flashing and more. Venting prolongs the life of the roof.

To calculate an example of exhaust and intake use 25 feet of roof ridge vent. Repairing leaking ridge vents. Something like tar paper over thin plywood hung from straps. Loads will vary with the pitch of the roof.