Installing Trim Before Roofing

Most roof trim is installed before shingling but not all of it.

Installing trim before roofing.

Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap. The rake board serves as the starting place for the shingles. Center a minimum 610 mm 24 wide minimum 28 gauge pre finished galvanized metal valley liner in the valley and fasten with only enough nails to hold it in place nailing at the edges only. Metal roofing 101 diy steel roofing installation over shingles subscribe.

Here is a short video showing how. Our host david mackey discusses techniques used in installing eave trim with exposed fasteners using the sl 16 standing seam roofing system from american bui. This is the metal trim similar to the eave flashing except that it is placed over joints in the roof where different sections meet. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.

9 roofing panel install with lower edge 1 above the transition bend. For the best results purchase pre primed boards whenever possible. This should be used in valleys points where 2 sections less than 140 degrees meet and as end caps over the tops of 2 sides that meet. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Be sure to cut this metal at the correct angle before installing it. It can be a simple board or it may include a frieze board soffit and fascia. 10 panel wood screw space according to the recommended fastening pattern and local codes. Do you need to install eave or fascia for a metal roof.

Roof trim is a general term for many parts of the roof that must be installed when shingling a roof. Numbers give suggested sequence for trim installation steps. Rake board trim is an overhang from a pitched roof.