House Wrap - Vinyl Siding

General Discussion

  1. Bee1971

    Bee1971 Well-Known Member

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    Sorry , not a home construction expert , however

    Little bored between slow work at the airport and some projects with the car on hold

    Anyways going to install some new vertical siding on the second story

    I was a little surprised when I pulled off my faded horizontal vinyl siding on our 20 year old home here in WI , built in 1999 , and discovered no house wrap , maybe it wasn’t code required back then ?

    Obviously flanged vinyl windows already installed

    Wood sheathing is excellent along with windows - Zero moisture damage anywhere , everything looks great honestly

    Should I install house wrap or just leave it as is ?

    If I install house wrap , everything I see online is pretty much done BEFORE windows are installed as far as flashing , tape etc.

    Am I overthinking this ? Or how to use flashing tape etc and bring the house wrap up to and seal around the windows

    Top of windows are basically just under soffit overhang by about 4"

    Thanx for any advice

    Have Home Depot and Menards close by

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  2. super-bee_ski

    super-bee_ski FBBO Gold Member FBBO Gold Member

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    Hmm,
    Not a carpenter but...
    In the old days, they just put the shingles on, I think
    But if it were mine, yeah, I'd staple on something, be it felt Paper or wrap
     
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    • mopar 3 B

      mopar 3 B Well-Known Member

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      Get some 3/8" fanfold insulation and tape for the joints. Flash tape the insulation to the window frames. This method will not only seal the house from drafts but also give the siding some expansion backing.
       
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      • vintage chromoly

        vintage chromoly FBBO Gold Member FBBO Gold Member

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        Definitely house wrap it.
        Get the tape that goes with it and tape the window flashings.
         
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        • Baller

          Baller Well-Known Member

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          You should try to get something under the bottom flange of the window (which shouldn't be nailed). I'd also extend the side flange with 3m All Weather Flashing Tape extending that over whatever you use for house wrap. Ass backwards, but unless you want to pull the windows...which you should consider as it's pretty easy. Just cut the trim/caulk away from the inside first.
           
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          • steve from staten island

            steve from staten island Well-Known Member

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            Not a expert but there is suppose to be felt paper under that window flange and wrapped around the studs
             
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            • Runner 68

              Runner 68 Tarnished Bronze Member FBBO Gold Member

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              I think the basic question here concerns flashing the windows without pulling them out.
              Wrapping before the window installation is better but not a deal breaker.
              For sure wrap the house in Tyvek. Cut it around the windows then flash tape those seams with the best shit you can find.
              The trick to this stuff is to try and think like water. Water is a slave to gravity.
              Seal your house so the water runs runs around, out and down and you will be fine.
               
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              • Bee1971

                Bee1971 Well-Known Member

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                There is some kind of adhesive under those flanges , but obviously I don’t know what’s on the studs
                 
                Last edited: Apr 2, 2020
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                • Bee1971

                  Bee1971 Well-Known Member

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                  Didn’t really want to pull the windows

                  I could pull the nails on the bottom flange however

                  I did that on my vinyl sliding patio door when I installed the z channel under the flange for my deck ledger board

                  Anyways

                  House is very well insulated within the walls , and blown insulation inside attic and garage


                  3m Flashing tape extended - Thanx
                   
                  Last edited: Apr 2, 2020
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                  • Bee1971

                    Bee1971 Well-Known Member

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                    Thank You

                    Exactly what I was looking for

                    I didn’t want to get over my head on this project , and overthink knowing everything has survived -30 below to 95 above , rain and snow just fine with just cheap horizontal vinyl siding the last twenty years

                    But at the same time , Anyways

                    Home Depot sells Tyvek and everything I should need
                     
                  • Durandal25

                    Durandal25 FBBO Gold Member FBBO Gold Member

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                    This.
                     
                  • 69 GTX

                    69 GTX FBBO Gold Member FBBO Gold Member

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                    I'd put the wrap on, just one more layer of protection.
                     
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                    • pushrod

                      pushrod Well-Known Member

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                      Wrap is fine as is.use the 6" window tape, available at most home improvement stores, install the bottom tape first then the sides, followed by the header. Prevents water creep at the corners.
                       
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                      • joe smith

                        joe smith Well-Known Member

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                        Best advice on here so far. If you are not going to pull the windows and tape UNDER them first to prevent dry rot from any moisture from sweating..
                        Never heard of not nailing the bottoms?? It was the top you do not want to nail as when the header sags it does NOT push on the top of the window, breaking it or the glass.. If the window is really wide, nail above the top nail flange with the large square felt nails so when/if the header does sag, these can move without pushing on the top of the nailflange/window...
                        At the very least after doing the above with tape, if you are not going to wrap all of it with Tyvek, I would put a width of a roll of Tyvek or FELT around each window or door opening AFTER you tape them...
                        I worked 35 years for 3 window manufacturers as an outside sales rep selling to Dealers...… I stayed in a lot of Best Western motels too...…..
                         
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                        • steve from staten island

                          steve from staten island Well-Known Member

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                          To what Joe says as far as header saging and a little off topic. I installed a slider were a double hung window was. I fit the header really to close to the slider. The big mistake was I had the crown of the header facing the wrong way. Over the years the door stuck at certain spot when opening it. I adjusted down the rollers until there was no adjustment left...
                          When I redid that room over for the second time I took out that slider and replaced it with a different one and reframed the rough opening. Never had a problem after that. I wish I knew more about carpentry but back in those days there was no internet or you tube advise and no FBBO to ask questions as some of you guys really know your stuff
                           
                        • Bee1971

                          Bee1971 Well-Known Member

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                          So do this first with the 6" window flashing tape on the window vinyl flanges to bare wood sheathing

                          Then Tyvek the whole second story with wifes help and hope she doesn’t fall off the roof or gets

                          Cut out window openings

                          And tape again in same manner around the windows with the Tyvek seam tape or 6" window flashing tape in same manner

                          Thanx Scott
                           
                        • Runner 68

                          Runner 68 Tarnished Bronze Member FBBO Gold Member

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                          I would do a 6" butyl rubber / foil flash around the window to sheathing in the fashion Pushrod stated, wrap, then foil tape the wrap in the same fashion.
                          Bottom up on all layers so the the water runs over, out and down.
                           
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                          • Fizz66Coronet

                            Fizz66Coronet Well-Known Member

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                            Trim windows with aluminum and foam underlayment

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