Ok To End A Roof Into An Existing Wall

Unless you re careful step flashing can allow water from the roof to slip behind the gutter and get behind the siding and even the housewrap.

Ok to end a roof into an existing wall.

Then mount new trusses on the new addition walls. Yes even flat roof to wall intersections are not being properly done. Install liquid water proofing or peel and stick membrane on walls next to and beneath the end of the roof wall intersection. Install step and kick out flashing at roof wall intersections.

Remove and repair any damaged siding and sheathing next to or beneath the roof wall intersection. Butt the first new truss against the old one. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. Tying in to an existing gable roof tie into the end of an existing gable roof by removing existing facing boards wall siding and any other obstructions back to the first truss of the old roof.

If you re adding to the gable end of the house the side wall that goes up to the roof s peak it s fairly easy to extend the existing roofline over the new space says curt schultz a realtor architect builder in pasadena calif. Remove existing siding and shingles at roof wall intersection. As long as you use a roofing design that matches your existing roof you can use the same materials. Tear roof sheathing from supporting framing see figure 7 4 and rip roof framing from supporting walls.

However if you build a porch roof with a peak larger than your existing roof check to make sure the that material can stand up to the pitch of your porch roof. The exterior of a house presents plenty of opportunity for leaks. A common problem area is the point where a gutter dies into an adjoining wall as the photo below illustrates. That s a simple low cost solution that can tie in well with the main house.

They form an upside down v with the point at the top of the addition roof. The loss of roof coverings and roof decking can allow water to enter a building and damage or destroy interior finishes and contents or even worse may destabilize a structure and lead to building collapse. Pick roofing materials that match your existing roof. The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.