"No way would I start from the bottom. It is so much easier to re-due the roof then remove drywall and trim and whatever else is on the ceiling. Other thing not considered is the control of debris, fiberglass, drywall dust, possible mold exposure,…"
"OK next is the insulation has become saturated somewhere and you will have to find the area. I would say it might be time to get a scan of the ceiling for cold spots and to check the area with a non invasive moisture meter. I have found situations…"
"Your problem is in design according to what I see in your first picture. The covered entrance section needs to be completely sealed and vented from the main attic from the inside. The moisture collected below the walk in area or patio is trapped at…"
"Sorry I can't access where it is but your best bet is to remove the plywood and add Closed cell SPF leave a gap below the new applied plywood sheathing and ventilate from the soffit to the ridge vent. this will prevent the ice dams.
"Paul the design of the one I put on provides more air to pressurize the house just right. Not sure what the figures would show but even when a HRV or ERV is balanced at times the home is not according to the wind and stack effect.
You are correct…"
"Seems like a number of discussions going in a single thread. In an increasing number of homes, mechanical ventilation is necessary. Relying on natural leakage to provide adequate pollution dilution in the house generally means that on…"
"I also agree because of its ability to float in the air much more easily than other Insulations of today. Because it is a fiber or rod shaped it is hard for the microphage to absorb around it. This is very similar to the problem with asbestos.
"I agree with Kevin regarding the need for mechanical ventilation vs. relying on passive, uncontrolled ventilation though places you do not ask about in polite company.
That aside, Venmar, Lifebreath, Fantech are, depending on model, fairly…"
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