10 year old, two story house with two leaks, both of which can be traced to flashing (or more precisely lack thereof). Have researched and not found these precise circumstances elsewhere so appreciate the help. Don't have pictures now, but will provide if needed. [B]Leak 1 [/B]The one story garage's roof line runs perpendicular out from the front of the house. The roof is composite shingles and butts against the full brick facade on the house. The house extends out about two feet to accommodate bay widows at the gutter level of the roof, thus creating a "stretched Z" intersection, creating a place for water to pool, as well as gather and stream down over the end of the gutter, either due to overflow, or slipping between the gutter and the brick wall. This is further aggravated by the upper roof gutter emptying out onto the garage roof. While you'd think this would distribute evenly, it seems to want to drain inwards toward the house, adding to the water volume. The leak is showing up behind the Tyvek and rotted out a small area of the sheathing and the floor OSB on the first floor as seen from the basement. [B][I]Questions for Leak 1[/I][/B] 1 - Would the volume of water (heavy rains and snow melt) be sufficient to create this leak through masonry, or is there another structural failure I should be looking for? 2 - Is there a better way to divert the higher gutter drainage to disperse throughout the roof (it just sort of drops on without room for an elbow)? I've considered running a downspout line along down the roof against the house, but think that's ugly where I've seen it before. 3 - For the counterflashing, I've seen both a step flashing and a singular piece. Since (unlike a chimney) the long run here is going to be stepped, is there any code or considerations of which type I use? Is it necessary to anchor with screws or can it be held in place with caulking in the masonry grooves? 4 - Am I just being unrealistic in expecting that this should've been code / caught? (This condition has been since new) 5 - Am assuming I'm going to need to rent or buy a brake as this stuff will likely not be available in pre-bent form. [B]Leak 2[/B] Structural chimney which is (ironically) sided with cedar (as opposed to brick) abutting a new addition that has composite shingles. The chimney intersects the roofline of the addition on the slope, and there apparently is no flashing that can be seen here either. [B][I]Questions for Leak 2[/I][/B] 1 - What is the appropriate flashing for this situation? I'm guessing sheet tins interweaved with the shingles. 2 - Is there such thing as counterflashing against cedar siding (haven't seen it) or do you just caulk the cedar-to-sheet tins joint? Thanks in advance for your help - the only "roofing store" in town is not to friendly to DIYers and this forum is a great lifeline!!!

Two corners where the roof meets the brick parapet on my house are leaking down the space between the brick and the wall into my basement. I would like advice on what the proper flashing solution should be. Here is corner 1 (right): [URL="https://picasaweb.google.com/lh/photo/FMgR0SzPM1Yb6YFydAyeyfhABKr6Fl84LWxdP01saFI?feat=directlink"]https://picasaweb.google.com/lh/photo/FMgR0SzPM1Yb6YFydAyeyfhABKr6Fl84LWxdP01saFI?feat=directlink[/URL] Should cap flashing be installed into the brick joints in addition to a kickout diverter? As you can see the brick parapet extends such that any kickout diverter would need to be fairly long in order to get the water to the gutter. Should the diverter be angled or flush with the brick? If angled to reach the gutter, what should be done to the space between the angled diverter and the brick? Here is corner 2 (left): [URL="https://picasaweb.google.com/lh/photo/5fuUvfJaekNnkNzsV4xxTfhABKr6Fl84LWxdP01saFI?feat=directlink"]https://picasaweb.google.com/lh/photo/5fuUvfJaekNnkNzsV4xxTfhABKr6Fl84LWxdP01saFI?feat=directlink[/URL] In this case the downspout from the second floor gutter drains into the 1st floor gutter right at the left corner where the siding intersects the brick parapet. It is over flowing onto the brick "shelf" and seeping between the brick and wall down to basement. Seems like a kickout diverter is needed here also but what about the flashing on this shelf? Should it also be tucked into the mortar joint? Here is a view looking down into this corner: [URL="https://picasaweb.google.com/lh/photo/0BbK--QWOKEMhD_3tGmH7vhABKr6Fl84LWxdP01saFI?feat=directlink"]https://picasaweb.google.com/lh/photo/0BbK--QWOKEMhD_3tGmH7vhABKr6Fl84LWxdP01saFI?feat=directlink[/URL] I have read 2nd story downspouts should not be terminated in 1st story gutters to avoid the overflow issues I am experiencing. I was thinking the 2nd floor gutter should go strait to the ground and the first floor gutter downspout should be moved to the opposite end of this corner. Is that necessary? Thanks for your help. I couldn't find a way for the links to my images to show up in the body of the post but if you click on the links you should be able to see the images.