Roof Ventilation

roof ventilation diagram

In your house, is the upstairs usually much warmer or cooler than the main floor? Well, typically the reason for this is because your attic and roof are not properly ventilated. Sometimes, this can be a quick easy fix with additional roofing vents and soffit vents. Other times it can be a much more detailed process to ensure your air intake is properly entering and exiting your house.

To know if your roof is properly ventilated, a general rule of thumb is that your attic should be no warmer than 10-15 degrees from your upstairs. If it is, than your attic needs more ventilation. A common problem when an attic is not properly ventilated is ‘sweating’ can occur and produce moisture that can cause damage. The most common damage that occurs with sweating is mold in the attic insulation or moisture spots on the ceiling.

Another common problem we see in the winter time for Kansas City roofs is ice dams forming on roofs and producing leaks into homes. With ice dams, moisture sits on roofs for long periods of time and will penetrate through your roof, into the attic and on your ceiling or interior walls. A couple ways to prevent this is by first having an attic properly ventilated to let the moisture escape as well as adding ice and water roofing shield underneath your shingles along the eaves of your home. The ice and water roofing shield is a stronger water proofing membrane than your typical roofing felt you typically see being used. Some but not all city codes now require ice and water membrane to be installed on all rakes and eves of homes so ice dams do not form.

If you are experiencing any of these issues, we highly recommend you contact us to have one of our Kansas City roofing contractors come out and assess your current problem. One of our roofing contractors will be happy to see what the current problem is and what we can do to fix any issues there might be.