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How to Replace a Skylight | Ask This Old House

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General contractor Tom Silva installs a new skylight into an existing roof opening. (See below for a shopping list, and tools)
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Shopping List for How to Replace a Skylight:
Skylight with flashing [amzn.to/2YcEmMy]
Extension jambs [amzn.to/33QBh6o] and wood trim [amzn.to/33QBqXu], for widening the skylight frame
Carpenter's glue [amzn.to/2RjoqH1]
2-inch nails [amzn.to/2qfxzVV]
2-inch screws [amzn.to/2RfiU8k]
Self-sealing membrane [amzn.to/37YonXf], for sealing out water
1 1/2-inch roofing nails [amzn.to/2RfsXKB], for securing shingles and flashing
Acrylic-latex caulk [amzn.to/2RhnBPc], for sealing the interior of the skylight
Tools List for How to Replace a Skylight:
Staging planks [amzn.to/2rbHJr1] and roof brackets [amzn.to/2qcRQeK], for standing comfortably on roof
Fall-protection safety harness [amzn.to/2qfP48C]
Flat bar [amzn.to/2rbIhgz], for prying off shingles
Miter saw [amzn.to/2LhubRV], for cutting wood trim
Cordless drill [amzn.to/2Ljqg7b]
Pneumatic nailer [amzn.to/33Nx2bs] and air compressor [amzn.to/2OMFH9K]
Utility knife [amzn.to/2RdZNLN]
Caulking gun [amzn.to/2DFuYrk]
About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we're ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers-and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
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How to Replace a Skylight | Ask This Old House
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Опубликовано:

21 авг 2024

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Комментарии : 227

@jaceybraveheart3647 5 лет назад

I work in construction (flooring and finish carpenter) and I always watch tommy before work. Its like watching a rocky movie before working out.

@deplorableb.r.4211 4 года назад

Leave the dames alone before you work on your house. WOMEN WEAKER LEGS!!!

@Gutterball 8 месяцев назад

It is very enjoyable to watch Tom illustrate how to perform a professional job. This old house is so much fun watching someone who knows it all and Kevin who knows nothing.

@juliodavid49 4 года назад

Tom Silva is the best. He knows everything and always does s quality job. Love this show.

@ForvoQuizlet 2 года назад

At five minutes (maybe earlier) I was more than convinced I need a roofing contractor.

@somerandomguy3 6 лет назад

How many times did he say "Self sealing membrane"

@randomo3110 5 лет назад

or flashing

@deplorableb.r.4211 4 года назад

I like it when he said the wood was wopped.

@liandraprinsloo6670 4 года назад

@jadenr.11 3 года назад

5 times

@elevate32767 3 года назад

about as many times as he said 'sment'

@Jimddddd1981 5 лет назад

Insane in the self sealing membrane.

@coreygrua3271 4 года назад

Silver Symbol...may I thank you for this sterling contribution to my life. I’m retired so I have a big block of time to seek perfection in my yard that I didn’t have once upon a time. I’ve wanted a yard that blossomed as a rose, but I also live on the edge of the Great Basin in Grantsville, Utah. Our irrigation water has been halved due to a dry spring. Soil compaction has become a significant problem in clay soil. Normal, or even water hydration doesn’t work, so you just brought me closer to that perfection I desire.

@randallridgley7679 3 года назад

Insane, in the self-sealing membrane!

@nickblaze4872 Год назад

As a 31 year roofing veteran, I give this video a C+... Here's why... The surrounding damaged underlayment "Ice & Water Shield" (I&WS going forward) should have completely covered in the exposed area before install continued. Cutting the center out with a utility knife flush. This renews the surface from any existing holes or gouges. The first layer of I&WS strips (in video) should have been flush in the same manner as it was installed (underneath) but over the top, while the 2nd layer should have been wrapped with relief cuts as shown. Keep in mind the first recommendation above would have already been the I&WS "UNDER". Any errors in the double wrap (shown) could cause openings for water intrusion and then trapping water once in. Gradually opening more as ice forms and causing a leak. It's okay to re-use existing shingles for a better color match, so long as you use a tube of roofing cement to seal the shingles back down and and fill in the old nail holes. Once you break those seals, they will never glue back down. The way it was done here, if a Thunderstorm hit with 30 mph winds, these shingles would be flapping around, rain will then find those old nail holes, and ultimately find the damaged undelayment which was never repaired... It's okay Tom... I still think you're an awesome carpenter..

@paulmcguire3789 8 лет назад

I learn so much from you guys and this is fun to watch too!

@LayerByLayer622 6 лет назад

Paul Mcguire i

@usergvhhyu1223 6 лет назад

Wish all contractors were as organized, neat and professional as this gentleman is.

@NielsCG 5 лет назад

sadly that's imposible

@morbo3000 5 лет назад

"We go under the shingle to loosen the nail so we don't damage the shingle." Next shot shows the other guy ripping a giant tear into the shingle from being careless.

@jasoncassidy2517 4 года назад

Screwing the brackets holding the safety rope through the shingles won’t cause a leak?

@oscarramirez2399 4 года назад

Jason Cassidy lol he probably replaced the caps that were screwed in

@frenat 4 года назад

@@jasoncassidy2517 you repair those with a roofing caulking later. They talk about it on this other video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-f_jbaGCR6oo.html

@markuslappalainen6847 4 года назад

Kevin is amateur and the host of show. But i think that he is quite handy for non- professional.

@giampieronencini5101 4 года назад

I was looking for this comment, glad to have found it.

@samcummings7035 6 лет назад

Advice from the Pacific Northwest: The strip of Ice and Water seal (flexible flashing) that was put on top of the underlayment and that other strip of flexible flashing in order to "close the gap", that top piece should have been routed under the the underlayment and over the lower strip of flexible flashing for water shed purposes. Same concept as laying shingles. Granted the adhesive is a very viable seal, it still creates the potential for a failure point. Just advice from an NW Oregon carpenter that's dealt with a lot of rain, and rot repair. No pro roofer here.

@melaniedemmert2342 6 лет назад

So, go from top of window, down to bottom, vs the way he did it?

@SteneArtStudios 5 лет назад

Great!! Always interesting to learn how different regions have to build due to weather.

@avieshed8646 5 лет назад

@@melaniedemmert2342 I think he means the part at 09:30 at the top of the window where there was a gap in the underlayment. You could see the plywood underneath. Tommy put the membrane OVER that and OVER the membrane below. he should have put the membrane UNDER the underlayment and OVER the membrane below.

@luciobortolotto598 5 лет назад

You right

@melaniedemmert2342 5 лет назад

@@avieshed8646 thank you!

@bg147 4 года назад

I am never able to lift the nails out as easily as Tommie. At 1:47, you can see the young whipper snapper Kevin had the same problem and tore the shingle in two places.

@spartakmayakovski4797 4 года назад

Kevin is mongoloid

@jlacson74 4 года назад

Insane in the membrane.

@travisedwards9983 5 лет назад

1 missed step, should of sealed up every old nail hole in the shingles and put more tar under all the shingles that were lifted and had seal broken to prevent wind lift/leaks etc

@TheFinalOutpost 2 года назад

It's been said, that to this day, Tom is still up on that roof laying down strips of self-sealing membrane.

@tomhardware2254 5 лет назад

Best way to replace a skylight is to roof over the hole.

@justintomerlin 5 лет назад

Lol true😁😁😁

@PJJ196 3 года назад

You should get ur own show

@elevate32767 3 года назад

Every base is covered with these guys!

@MSI2k 6 лет назад

With so many flashings, not even a hurricane can get through.

@definitelynotacop621 6 лет назад

MSI2k it'll sneak in your backdoor if you're not careful.

@jonathanjeromebeaverbones6684 4 года назад

I feel like I need to go out and buy some self sealing membrane.

@scottvan1898 4 года назад

Place it around your car door or trunk ? 😂

@robertoacevedo3805 3 года назад

"You can't be too safe when working on a roof." Remember that kids.

@kai-pn2pk 6 лет назад

Beginning - "Whats the problem?" (2 mins later) "Oh no problem I just happen to have a roof window in my van don't worry"

@DrugsAreBadUmmmKay 5 лет назад

Roof windows are called skylights but wall yard windows are just called windows?🤔🤯

@cloudstrifeification 5 лет назад

This is a good video and they did a wonderful job at fixing the sky light but this also serves as a warning not to install skylights to start with as they are guaranteed to leak at some point because you are cutting a hole in your roof. They are nice though.

@xgum 2 года назад

expecting me to cut a rabbit and dado to fit the new skylight is a TALL order

@rsgerman4061 5 лет назад

I like watching this when im stoned. The craftsmanship and passion for your job.

@brendymalone1 6 лет назад

Love watching quality work . Big fan from ireland

@DannySteel18 5 лет назад

I like how the owner is a pro in roofing

@davidgarfinkel7033 5 лет назад

Cc Boyyy that’s not the owner,it’s the host of the show and the general contractor

@brettvukovich6220 3 года назад

These guys must save ten of thousands on their own homes by having working knowledge of home repair.

@degenwow 3 года назад

Beautiful day at the work-side.

@who8033 5 лет назад

What a great show, saves us lots of money

@oliviagreen8853 4 года назад

It would have been so funny and realistic if the window was slightly too small and it just fell into the house when they tried to put it in lol

@richardphan3644 6 лет назад

He screwed the harness into the roof? Wouldn’t that damage the water seal?

@Guillotines_For_Globalists 5 лет назад

They also screwed the brackets for their little deck.

@AlMai222 5 лет назад

It’s fine if you use sheet metal washer screws and screw them back in. Never had a problem like that. Being safe he’ll probably also use a tar roof caulking to double seal it

@tomsenft7434 5 лет назад

@@Guillotines_For_Globalists : in the future, they can repair that leak.

@AnonYmous-qg4ph 5 лет назад

They didn't even do it correctly. The anchor is meant to be mounted directly to the roof deck, not over top shingles. And you have to hit a truss with the screws

@victoreous626 5 лет назад

@@AnonYmous-qg4ph Very good

@franciscopenaarts3845 2 года назад

Nice job

@conqwiztadore2213 4 года назад

What a god tom 🍅 is. So much knowledge

@RobotJustice 7 лет назад

What happens with the holes made by anchoring the safety equipment?

@DasSnakeBoy 7 лет назад

chrisbinnie caulk it up good

@jesseg9163 7 лет назад

chrisbinnie I would probably paint them black and leave them for future use.

@selfishlyintrigued 6 лет назад

Most new homes actually require by code these be installed permanently on roofs in new construction. They can be added after the fact as well.

@Mrcrisis2012 4 года назад

Roof caulk

@kalijasin 2 года назад

Leave the anchor in place.

@mtobrien1 4 года назад

Tommy is a badass.

@justinbey3426 3 года назад

Awesome stuff on the roof and getting the next skylight installed right, but I’m wondering about any of the water damaged wood around it

@DrugsAreBadUmmmKay 5 лет назад

The only proper way to replace a skylight is to carefully remove it with a sledgehammer while being diligent enough to also take out at least two extra feet all the way around it. After that highly enjoyable task you can then cut the area out with straight edges so you can finally deck and roof that old "leak magnet" like you should've done to begin with.

@tubetop123 6 лет назад

Drinking game with "flashing"

@belliott6042 4 года назад

This Tom knows who was buried in the tomb of the unknown soldier!

@Musabe009 8 лет назад

You guys must be mind readers. Was just thinking about doing this project.

@evilla410 4 года назад

Hi Tom, this the 1st time I see Kevin work 😮😮😮 you don’t need a host guy, you need a helper.

@heroknaderi 4 года назад

I appreciate it

@shahidnasim1 3 года назад

The wood was still exposed even though the water/ice shield (self-healing membrane) was applied. Looks like the membrane wasn't applied all the way to the top of the sides. Wouldn't the wood eventually rot? I have a "curb" and wonder if I should tell my contractor to apply the membrane to the top of the curb and not only the sides?

@toddhigdon5928 5 лет назад

Why every time I work ,shit never goes that easy???Lots of screaming and fighting...lol

@matte8433 6 лет назад

that was a masterpiece!

@PilchPlays 8 лет назад

This segment was posted a few weeks ago.

@edgarhernandez3044 8 лет назад

might unsubscribe too

@Draugluin999 2 года назад

tommy makes me wanna be a carpenter

@stevehillier7018 4 года назад

Flaaaaashing 😀

@jameshawkins809 7 лет назад

I have a sky light that needs to be replaced. I feel like I should just remove it though. I know this is expensive.

@Kermeous 7 лет назад

Almost doesn't seem worth it with all the trouble they can cause, putting a hole in your roof, all it takes is one misplaced nail or flashing afterlapped on the wrong spot and you're dealing with it again

@DasSnakeBoy 7 лет назад

Kermeous if they are installed professional/properly they would last 20-25 years. Free lighting

@FreekHoekstra 6 лет назад

also great in hot days to vent the hot air at night.

@skylightsnw539 4 года назад

Probably adequate however it isn't installed in a way that Velux would warranty.

@atkgrl 8 лет назад

What kind of roof boards are those? No plywood or OSB? What that a build up prior to cutting the window hole or just old house? Just to make sure you did actually replace the old skylight and the new one you installed you did not test fit prior to setting your glue and nail for trim? Nice safety harness, not required but nice to see safety as a priority in all repair work.

@theTealStory 6 лет назад

old house.

@goonies101 8 лет назад

What did they do with the water damaged wood on the inside?

@reggiebuffat 8 лет назад

That's exactly what I was wondering. Why not change it?

@kevinhornbuckle 8 лет назад

With that much water damage to the interior trim and drywall, there certainly would have been rot damage in the roof deck and probably even the framing.

@finishfirstschedule1547 7 лет назад

this video is "how to replace a skylight". not water damaged trim

@symbioticvenom6456 7 лет назад

but since they had it apart it would make sense for them to fix it, I mean they are supposed to be professionals.

@Engineer9736 7 лет назад

symbiotic venom I think you can assume that it has been fixed.

@prakashgudimetlagudimetlap2533 5 лет назад

Wow super bro excellent job great job

@juliosantos9289 4 года назад

When they're done Tommy says, "That's it the roof is done." Kevin drops his hammer and cracks the glass. Tommy says, "There's one last thing I want to do." Throws Kevin off the roof. :D

@denniscollyer8161 4 месяца назад

I need to replace skylights. Got three prices and they all insist they won’t reuse old shingles. They insist on using new shingles. I am worried roof will look like patch quilt.

@8888EIGHTYEIGHT 6 лет назад

Yeah! W.R. GRACE!

@midnightdarkchocolate 5 лет назад

0:27 “Right here in the middle this piece wood is all bent and Wap”

@willy8477 6 лет назад

geweldig, wat een kennis heeft U

@ferretbaby1992 6 лет назад

Haha ,"there you go tommy every once in a while you get lucky" i dont think tom the man even has to doubletake.

@abl-detodounpoco5033 5 лет назад

Tommy you are -the gocu of the construction ..lol

@Viggggggr 6 лет назад

Yes leave the water damaged wood that's falling apart so it can get some termites

@springbahor 2 года назад

Do you insulate from inside ? Thank you

@kris8263 8 лет назад

Then when you have to reshingle the roof after a few years you need to get all that flashing off and reflash the window again.

@theTealStory 6 лет назад

not true. you can use the same flashing again.

@frankthetank3037 5 лет назад

Is this Michael Douglas doing a voice over

@taemonkie1917 5 лет назад

2:28 is why he should be wearing safety glasses.

@blunder1591 6 лет назад

When you fix the harness to the ridge are you not damaging the ridge ?

@HackThePlanetNow 6 лет назад

blunder15 nope just caulk up the holes with some black caulk and you’re good

@SteneArtStudios 5 лет назад

@@HackThePlanetNow Does the caulk dry up and crack? I'm always worried about roof leaks. Does a reapplication need to happen? To put my fear in perspective all the nails he put through the plastic sheathing I wanted to caulk. Hahaha Thanks in advance for the info.

@HackThePlanetNow 5 лет назад

Michael Stene I’m not a pro at all but all I can say is I’ve done something like this about 15 years ago and haven’t had any issues. Just make sure to use caulk rated for outdoor use

@SteneArtStudios 5 лет назад

@@HackThePlanetNow Sounds good. Thanks for the response.

@HackThePlanetNow 5 лет назад

Michael Stene No worries

@danielrapkin2178 3 года назад

The amount of time he said flashing i would be a rich man

@wyrmlingr 5 лет назад

No one: The worker: sElF SEaLiNg mEmBraNe

@venividivici4253 4 года назад

JanTheHam Your point?

@ru2388 4 года назад

2:04 "and I thought roofing in the middle of summer as a redhead was tough"

@rucksacks 5 лет назад

Say self-sealing membrane again! I dare you!

@chaddles623 6 лет назад

Why didn't ya just get a VELUX Fixed Mount Skylight, it installs alot easier than this. And that's not water tight, all those shingles you re-used no longer have any sealant on the shingles a s need to be hand sealed or replaced with new shingles. That will still leak if you don't do these additional steps.

@scottharriman9419 5 лет назад

I was wondering about those replaced shingles. It seems like the first windstorm will lift them right up since they didn't run any tar underneath to hold the flaps down.

@kalijasin 2 года назад

Flashing, water proof membrane, counter flashing, and shingles. That’s definitely Not leaking.

@1337tiny 5 лет назад

nobody says corner like Tommy :D

@justinwoods240 4 года назад

This is the first time I’m gonna question his work he only put one nail on the side pieces or the step flashes and on a windy day if there isn’t 2 nails won’t that lift up

@randomizer3775 3 года назад

What kind of paint do they used to paint inside, with outdoor or indoor? Any anyone know any kind of indoor uv resistant paint, thanks

@mjd3879 3 года назад

Plot Twist, the Roof is 20 years old and needs replaced so they have to do this all over again!

@huyquoctran2088 5 лет назад

Noob question here. Is there any reason why no contractor use hand drills with screws for roof tiles? Or is it too inconvenient and the hammer and nail is better?

@venividivici4253 5 лет назад

john tran Hammer and nail is quicker. Then you have to think about the battery’s dying on the drill.

@mindaugasnomnom3548 8 лет назад

9:10

@davidgarfinkel7033 5 лет назад

Mindaugas nomnom what about it ?

@tombomombodombo 6 лет назад

I didn't use the self sealing membrane for my Velux skylights. Lol

@knowledgeispower6192 3 года назад

Most skylights leak

@nateverhage5579 6 лет назад

What is better skylight or solar tube?

@tombomombodombo 6 лет назад

Skylight.

@user-jl9od7cs1o 6 лет назад

can add subtitles with translation into Russian language? read not quite correct Rollers you have a good

@timf5963 Год назад

Seems like a lot of moving parts. Sadly, I wouldn't trust a company in my area to do a correct install.

@aaronbays4 5 лет назад

I would have roofed right over that skylight. Skylights are nothing but trouble IMO, never a good idea to have a huge hole in your roof that always leaks.

@kimchee94112 5 лет назад

I have one over 40 years old, still good. I had my roofer replace 3 originals from a 1952 building, old one still good but high maintenance. Then 2 more about 6 years ago on another house, no leaks. And a tunnel tube about 12 year ago, no leaks either. I manage properties, so far all the skylights are ok.

@esam2017 3 года назад

👍👍👍

@AngelousSpike 6 лет назад

Take a shot every time he says flashing

@theTealStory 6 лет назад

should have gone underneath the paper there 9:30

@seanseanseanseansean 4 года назад

What? No one dropped a hammah? And we didn't get to see them trow da old skylight down into a dumpstah? I want to see the directah's cut of this video.

@demarco767 5 лет назад

was that a Velux curb mount skylight?

@davidbogolin3411 5 лет назад

Thought he put the trim on so he didn’t have to get up on a ladder inside The house

@chuckfuller5083 Год назад

That house will fall clean over before that skylight ever leaks.

@SolarEmpire450 8 лет назад

Why do you re-upload old video

@billbauer2239 3 года назад

It's step flashing........ I never knew my real flashing.

@jh1859 4 года назад

You cut a big hole in your roof and wonder why it leaks.

@dmaninthewall 5 лет назад

He puts his Nail gun on a glass skylight 3:37 🤫

@ajroman4387 5 лет назад

he fucked the nail up at 5:23

@stevensrspcplusmc 5 лет назад

People over use membrane.. if you install it correctly you don’t need it..

@BRUCON 5 лет назад

If you have it use it. Its cheaper than sheetrock and paint

@AStanton1966 3 года назад

Save yourself headaches and heartaches, don't put sky lights in a house or sun roofs in a car. Why cut a hole in your roof then expect it not to leak? The best skylights are only warrantied for only 10 years while most roof shingles are good for about 30 years. So, as in this video, you are swapping out skylights before you replace a roof.