How to Install Drip Edge and Step Flashing | This Old House

[Music] all right so this is a self-sealing membrane right here there's a couple of different types out there this one has a granule on it that allows you to walk on it but it also allows it to stay out in the Sun a little longer we like to run it over and up the wall so it's added protection as a flashing but it still has to be flashed now in areas where you get heavy snow it's important that you bring a self-sealing membrane from the roof down on to the fascia board ceiling that gap now let's talk about flashing this is actually a drip edge the first big problem that I see roofers do a lot of is they take the drip edge and they gently put it against the fascia board and then they nail it then they take their shingles and they put them on top and they make it flush with the edge here those are two no nose I'm just going to tack it again I'm gonna do it wrong so I'm gonna place it flush with the edge okay so now you can see that it's all flush with the edge and the drip edge is touching the fascia board now depending on wind and rain conditions when the water runs down the roof let's watch what happens as it comes to here now a driving rain the water's gonna run right off the roof see but when it starts to slow down see what happens see how it's sticking going right under and hitting that drip edge right there getting pulled right in that surface tension pulling the water against the surface the bubbles will grab the fascia board run down the fascia board and shorten the life of it so that's a no-no all right let me show you the way I like to do it first of all we're gonna take the drip edge and slide it out keeping the keeping it tight to the roof I'm gonna slide it out enough so I can put my fingers in there okay pull my fingers out and I have a space alright so what I want to do is we want to nail it will kind of keep the nail about in the center right here that keeps our flashing laying flat nail it about every 16 inches alright this is an architectural shingle there are also what is called three tab shingles where this through two slots for individual tabs architectural shingles are spaced a little different as they go up the roof this manufacturer makes a starter course the starter course has this tar right here it's activated by heat I don't want the joints to line up so the first thing I'm gonna do is I'm just gonna take and cut something off of this okay lay it down put it on the roof with the sticky side down I'm gonna place it bring it in so it just touches my flashing and I'm gonna pull it down a half an inch now and take another starter again rip it upside down now what I want to do is I want to gently bring it against that shingle I want to eyeball it so that it's even tack it make sure the nail is down tight and flat okay and the next thing I need to do is add another piece of flashing right here on top of the courses as we go and that's called step flashing I'm gonna nail it high okay now we're ready to start our coursing as we go up I only need one now now we take the next shingle that we cut lay it in place a small piece of shingle okay so now next shape okay so now let's see what happens when we pour the water on the edge of the roof when it's away and over huh great so you can see how the water is just going right away and falling off of the edge it's not being sucked down around all right good so I want you to get this roof done and I'll come back later and check thanks for watching this whole house has got a video for just about every home-improvement project so be sure to check out the others and if you like we can see click on the subscribe button make sure that you get our newest videos writing your feet

Channel: This Old House

Views: 316,619

Rating: 4.8833289 out of 5

Keywords: This Old House, Ask This Old House, DIY, Home Improvement, DIY Ideas, Renovation, Renovation Ideas, How To Fix, How To Install, How To Build, Newton Generation Next, Tom Silva, roofing, flashing, install, 4-6 minutes, This Old house clips, This Old house series, This Old house episode, Flash a Roof, new garage, new garage/in-law suite, roofing lesson, oofing lesson with the apprentices, water leakage, water, leakage, prevent water leakage, membrane and flashing, shingles

Id: UvLpM_MZB8M

Length: 5min 4sec (304 seconds)

Published: Mon Mar 16 2020