Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.
How to shingle a roof up to a wall.
Install the next shingle approximately 2 3 past the seal strip of the first shingle.
Proper roof wall flashing example.
The wall leg of the kickout should be applied over the housewrap cut a 2 ft square piece of housewrap and tuck one edge into the horizontal cut the same one the first piece of housewrap was slipped into and up under the housewrap on the wall by at least 5 in.
Continue laying your shingles horizontally up the roof.
A couple of weeks ago we published a two part series showing how a local roofing contractor shingled a roof with architectural shingles.
The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material.
Place the first shingle end flush to the edge of the roof.
When you reach the peak either bring the ridge edges together with a ridge capping layer or cut regular shingles into 3 tabbed equal pieces and bend them so they fit on the roof peak.
Keep this up until you reach the other end of the peak.
Nail each side of the shingle to each side of the ridge just below the shingles self sealing strip.
Most simply use a nominal 6 piece of lumber.
Use sticky back ice and water shield as underlayment where ice dams or leaf and twig dams are likely to build up and at valleys and where the roof ends at a wall wide metal flashing may also be used there.
Roof planes that butt against vertical walls at the end of the shingle course are protected by metal step flashing at least 125 mm high and 125 mm wide 5 high and 5 wide.
If you hit a stack vent or chimney interlace the shingles with the flashing to allow water to run down the roof.
The stair step method tends to spread and mix the bundles better.
Tape over the cut in the housewrap with housewrap tape.
To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.
I created this video to help those do it yourselfers wanting to take on your own roof on how to install step flashing against a wall that will be getting si.
This project guide is a combination of those two articles and it covers replacing the existing roof decking installing underlayment and ice dam protection laying the first row laying shingles in the field flashing ridge shingles and vents and more.
If the adjacent shingles come from other bundles that are a slightly different color the roof may look patchy even striped.
Now install the kickout flashing and step flashings up the roof as needed.
Your last shingle is an exposed shingle.
When applying the new shingles each shingle course will be covered by a step flashing.
