How To Tie Two Roofs Together

The roofing cement will resist possible leaks overnight.

How to tie two roofs together.

Place the 2 by 4 inch piece of lumber along the center of the flashing. One is getting the two differently pitched planes to meet at the hip or valley rafter. The other is to get the fascias to line up. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.

When adding a new gabled roof addition to your home you will need to find a way of joining the two roofs together. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. Joining these two roofs poses two main challenges. Called tying in this helps to weatherproof and strengthen the joint.

Up from the valley center and cut through the shingles and underlayment. Select the 2 top faces. Here is a selection of knots for joining ropes and also some knots where the rope is tied upon itself such as the heaving line knot and the sheep shank the water knot is an excellent knot for use with flat webbing material. Bends are knots to tie two ropes together.

Position the flashing between the two roof pitches. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. They form an upside down v with the point at the top of the addition roof. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in.

Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. We re going to install it over top of the panels that have already been installed on the lower slope. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. Choose plugins instant roof make roof.

Called tying in this helps to weatherproof and strengthen the joint. Slide the right edge of the flashing under the highest roof pitch. Draw a couple of attached boxes representing a main building plus a building extension. The piece that allows us to join the two different slopes is the pitch transition trim.