Joining Two Pitched Roofs Together

Measure carefully to decide how many trusses that you need.

Joining two pitched roofs together.

This technique is beneficial particularly in home expansion. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. Joining two roofs with different pitches is a method that exists in the building and construction world. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition.

If by any chance right now you are looking for the information about how to join two roofs if they have different pitches here we will share all the information we know with you. Lets have a quick look at how to join a roof without an upstand where practical joining onto roofing felt with epdm roofing felt is bitumen based and it can be difficult to get any sort of good bond onto bitumen with anything other than a like for like bitumen product. Joining these two roofs poses two main challenges. Determine where the two roofs will tie or join together.

They form an upside down v with the point at the top of the addition roof. If they have same pitch then you ll only require one framing type. Slide the right edge of the flashing under the highest roof pitch. Position the flashing between the two roof pitches.

The other is to get the fascias to line up. One is getting the two differently pitched planes to meet at the hip or valley rafter. The piece that allows us to join the two different slopes is the pitch transition trim. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof.

Place the 2 by 4 inch piece of lumber along the center of the flashing. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. To tie both roofs together brace the upright and draw chalk guidelines on the shingles to mark the center line of roof valleys where they both will connect.