Does new insulation in attic require adding roof vents?

Q. A carpenter recently laid batt insulation R-38 in the attic of our three-story wood frame structure. The attic has done well without vents of any sort since the house was built 80 years ago. Does the new insulation require that we put roof vents in the attic for summer high heat and humidity? Lee Johnson Winchester, Mass.

A. It's likely the old attic could use some vents, either roof or gable, gravity or powered. Cross ventilation above the new insulation would be somewhat helpful in making the insulation itself more effective. You may want to consider a thermostatically controlled fan which automatically exhausts attic air heated above a certain temperature.

Whether the vents should be installed in roof or wall depends on the actual structural conditions up yonder. For an on-the-spot decision ask your local building inspector as to advice on vents: where, how many, and what kind.

About these ads
Sponsored Content by LockerDome

We want to hear, did we miss an angle we should have covered? Should we come back to this topic? Or just give us a rating for this story. We want to hear from you.

Loading...

Loading...

Loading...

Save for later

Save
Cancel

Saved ( of items)

This item has been saved to read later from any device.
Access saved items through your user name at the top of the page.

View Saved Items

OK

Failed to save

You reached the limit of 20 saved items.
Please visit following link to manage you saved items.

View Saved Items

OK

Failed to save

You have already saved this item.

View Saved Items

OK