The soffit is the exterior underside of a roof’s overhang. The soffit allows ventilation of the attic and the roof. It is important you size and fit your soffit correctly to ensure your attic breathes, or you risk causing damage to your roof. Regardless of your soffit’s material, you can still size and fit it correctly. With the right tools and directions you will be able to size your soffit in no time.
Measure the width and length of the soffit you need. Soffits are made in various materials; choose a soffit not made of wood to prevent rot. Aluminum and vinyl fascia are the easiest to install and will ensure your house is properly ventilated. When buying the soffit, ask for the matching soffit channel. Inform the salesman of the current wood framing of your soffit, so he can match you with the correct channel.