At joints and penetration points.
Flashing where different roofs meet.
Step 6 install the flashing.
Remember to caulk the underside of the flashing with a sealant.
This flashing comes in a v or w shape.
It is at the back of the porch roof where the roof meets the house siding.
Step flashing is best for where the roof face meets a wall for example where a dormer projects out of the roof.
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The porch joined the house at right angles to a shed roof section.
Valleys are the number one area where shingles will erode and roof leaks will happen if valley flashing is not installed in them.
While installing flashing is not the most exciting part of roofing it is one of the critical components that a roof cannot do without.
There is another place that roof flashing has now invaded.
Slide the right edge of the flashing under the highest roof pitch.
The gibraltar building products l flashing protects your home the gibraltar building products l flashing protects your home from moisture infiltration where your wall meets your roof.
If your flashing is new you may need a bonding primer.
Some roofs stop at a vertical wall.
Now nail this first flashing at both its far ends.
Traditionally the flashing was installed and hidden under the siding.
Gently bend the flashing using the edge of the lumber.
This flashing may be behind wood siding or in front of a brick wall.
489 78 kb my business partner and i recently added a large screened in porch with a gable roof onto a client s home.
The flashing should extend over the shingles at least three inches.
Materials for roof flashing.
Step flashing ensures that water is directed away from the wall and ends up in the gutter.
Install valley battens on both ends of the roof valley then attach first flashing 3 4 inches over the roof flange and another 3 4 inches over the fascia if any is present.
Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.
Joining two roofs of different pitches.
A metal flashing must be in place to direct water streaming down the wall away from the stopping point of the shingles.
Roof material changes direction.
Today the flashing is on top of the siding.
L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface.
In this spot it s possible that water could flow down the wall and slip past the shingles into the building below.
Roof flashing on a porch roof.
Valleys are those areas of the roof where two sections of roof meet at a joint and form an angled dip.
