How To Install A Window (New Construction)

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i shat in here from house improvements

calm today we're going to shoot a video

and we're going to explain to you how to

install a new PVC window in new

construction scenario we've got a series

of windows along the wall here we left

one out just to do this video in and

basically we'll just take a few minutes

to get set up and we'll be ready to go

okay so we're working at a new garage

construction site that i've been working

on so the gradual has been Tyvek and

we're all ready to cut the window

opening out so i'm just going to simply

the window open right here I'm just

going to simply take my knife I'm going

to find the edge of the opening and I'm

going to cut about an inch and a half

back or not

so wider than the opening go all the way

down the side and bolt the same across

the bottom now you could put a mark

pencil mark there whatever if you don't

trust yourself but long as it's close in

that range and then at the top I'm going

to do the same thing so we're basically

going cutting that out an inch and a

half around the hole opening to expose

the plywood or OSB whatever you're using

and then up here at the top I'm going to

make a couple angled cuts and I usually

need one down here to just creates a

couple flaps so what we're going to do

is we're going to create a sill pan and

make the install so everything's


we've got the room to do this here on

the plywood so first thing I've got to

do I've got to actually use a special

primer for this this is what I'm using

I'm creating a sill pan out of this

product here and it'll all stick on

around the hole and cover the whole

Sylla but I do need to use a primer some

products do some going this particular

this particular one requires a primer

so I'm going to go ahead and just spray

that all the way around and just takes a

few minutes to tack up and then we can

apply our product

okay so we've gone around the perimeter

out on this older face and I've tried to

spray about an inch and a half wide you

know we're just trying to cover the

plywood not necessarily the wrap and I

also want to do up about three inches up

the sides here and here and this whole

sill bottom

getting a few strings of glue going

everywhere okay and that just takes a

couple minutes to set up hopefully I

don't have glue on the lens of the

camera and this this product here

resists oh I guess this brand is called

there's lots of different brands out

there I'm not specifically telling you

this is the one you need to use or not

use this brand here like I said we need

the primer on the wood surfaces and we

just got to let that sit for a couple

minutes so what I'm going to do is just

prep the length of these a little bit so

what you want to do is measure measure

your opening and add about three inches

so I believe these are 33 I think 30

inches so I'm going to cut this at about

36 inches long

just cut the strip off

that'll be our our bottom piece that

we're going to put on there before we

put that in there there's some plastic

corners that we're going to place right

down in here just because that bottom

corner is a hard spot to seal up

properly so they've come out with these

here so to install that we've also got

the glue there but basically just put a

good bead of silicone in the corner and

press that right down in it same thing

on this side

press these rate down into the corner

like so I'm just going to give them a

little staple a couple staples just to

hold them in place


okay so we've got that in place now I

can put in this first piece of this

membrane and it just has a sticky back

on it so you peel off the back portion

and the one thing you want to remember

when doing this is we want to layer

every subsequent layer so that as water

if water does get behind your siding or

anything and it's coming down the wall

each layer is the upper layers are

overlapping the bottom layers so that

you're shedding the water property so

this first one just line it up with the

bottom of the opening like that I'm

sticking it past that two or three

inches extra that we added on to it

press it in really good make sure it's

stuck like so then we're going to cut

another one to go in the bottom of the

actual opening to start creating the

sill or the pan I should say and this

one I want it the same length as what we

just did so in this case it's 36 inches

again and this one what's going to

happen is it's going to sit in here but

it's going to we're going to stick it

out about an inch and a half and then

fold that edge around the corner so

again I go to peel the back off

so I'm sticking out about an inch and a

half down onto the one we already did

again you can see now I'm overlapping

the bottom one so we got at the right

direction stick these sides on and I'm

going to make a little cut right against

the side of the opening break down to

the bottom of the sill same thing on

this side break down to that plastic

corner we put in there stretching it

back and sealing it right to the bottom

of the bottom of the window sill there

okay and then we're going to go up the

side so I've got a narrower one for that

you wouldn't necessarily have to change

sizes but so this one's going to go

right from about three inches up top to

overlapping this one by a couple inches

again same brand product just a little

narrower roll

I believe this outer face is UV

resistant for I think it's 20 days or

something like that but it's not made to

be to sit out and not ever be covered up

I don't know I guess the Sun must break

it down over time okay again I'm peeling

the back off I'm just putting it flush

to the edge of our opening

so and I want to make sure I have this

flap up out of the way

push it on real good and flat a little

bit of a wrinkle in there but okay and

the same thing on this side okay so

we've got our two sides on I'm going to

go back down to the pan but it's not

maybe necessarily necessary that you do

it but I like to cover the whole bottom

of the of the wood sill and what this is

is that if any water ever gets through

its protecting your framing from rotting

oh it is really what it is and then

you'll see once we put the window in

we're going to create a couple of wee

poles in the seal on the window so that

if moisture does get in there it runs

out we've also I don't know if you can

really tell from here we've also

slightly sloped these sills

so they're the back inside edge is just

a quarter of an inch higher not even

about an eighth of an inch just again

create a bit of a slope so the water

will drain out and it's not saying

you're going to get water in there but

it can definitely happen so we're trying

to do everything possible to prevent it

from happening but if it does get in

there we want to have some prevention

there as well okay so this one I'm just

going to cover the bottom of the sill

with it and again I primed that whole

area so we get a good bond run right


stick that beam down and I'm going to

stick just a little strip up here just

to help hold those back but if you're

cutting up here just be sure you aren't

cutting remembering that you just

installed peel the back off we've got

that protective corner in there that's

sealing the actual bottom corner up I

just want to protect a little more wood

there okay so we've got the sides the

bottom we've got the sill panel made

we've got the side protected we're going

to put a strip across the top and then

we're ready to just let the peel in

doing so this one here again it really

should be about the same length as what

we put on the bottom when you're doing a

renovation window where you're replacing

the existing window and they're still

siding and everything in the way this

stuff it's a little tougher to put on a

lot of times I just make sure I use

extra silicone to install the window

instead of this but when you're doing

new you've got all the room in the world

to to apply this so why not so we just

want to make sure that that flap of

house wrap up there isn't behind this

product we want this behind the house

wrap just slipping it up behind press it

in really good okay we've got still got

that free to go once we have the wind

wall in this is going to get taped to

there and up the corners and everything

and again that's just creating this flow

so that the water if it gets through

here comes down onto this if this was

underneath it could get in the water

could flow down and get in behind all

this so we've got everything lap

properly I'm going to check the level of

my window sill from side to side

this one's nice and level yo you don't

want to just set your window in there

though right on the sill you want to

create a bit of a space so I'm using

these pieces of 3/8 plywood I'm just

setting them in there and I'm just going

to tack them in place so they don't move

and the window will sit down on here and

that will create a space inside this

will create an air space between the

window in here so that you can get that

insulated properly okay so we've got

that sitting there something important

to remember when you're doing a series

of windows like what we're doing here

we've got four actually in a row all the

same elevation is you know you want to

try to stay consistent so they are

straight and level and equal to each

other so we've got this all prepped up

we drop a wheel drive fit the window

which is just a matter of before we get

any silicone around the opening lift the

window end drive fit it make sure

everything works in this case I know

what's going to work all these last

three did okay so if you've watched our

other window installation for a

renovation type window this part will be

a bit of the same repetition but what

what we've got here that there isn't a

nailing flange here I like to use a

renovate they call it a renovation brick

mold and as you can see it isn't it

isn't just a thin flange that you put

the nails through and cover it with the

siding this is the finished product that

you see once the sidings on but what it

does have is these strips that pull out

and behind them as a channel where you

can screw the window into place through

and then the strips go back in and it

covers everything up nice and neat so

I'm just going to pull those off so

those are out of the way you also want

to go around the back edge and just you

know wipe any dust you know sometimes

the windows sat around and shipping or

something for a while and they're dusty

on the back here because we will be

putting a bead of silicone around the

opening we want it to bond nicely to the

back of the vinyl window this wind this

particular window doesn't open it's just

a fixed / fixed type window

very basic very simple some somewhat

different brands of windows are a little

more floppy than others this is just

rockin on the ground but some you can

actually rack from side to side or make

them untrue so always when you're

putting that type of window in just make

sure to measure corner to corner

diagonally on the outside before you get

it all screwed in so if you've got a

rack it a little bit to get it plumb and

straight and square that you can these

ones are really good and solid and never

had a problem with those but so what I'm

going to do I'm going to hop back up top

I'm going to put a nice generous bead of

silicone around the perimeter of the

opening then I'm going to grab the

window stick it in and we'll start

fastening into place okay so I've gone

around the top and the two sides with

the real nice big generous bead of

silicone all the way around when it

comes to the bottom I've come down to

the corner and I've come in I'll come in

about three four inches still with a

nice generous bead and I'm going to stop

and leave it about a two inch gap and

then I can continue on and do about the

same thing over here on the other side

leave a couple inches what that does any

moisture that does ever get in here

through condensation or anything and

because we have a slope on the sill this

gives it somewhere that it can actually

escape if it needs to now being that

it's on the bottom there's a lot real

low likelihood that any rain or anything

is going to drive up from the bottom up

into there so so we've got that all in

place something I forgot to do was I

want to get a mark on the outside here

on the on an edge so I know side to side

where the windows centered up if you

have two people doing this you could

have somebody inside telling you so I've

got thirty two and a quarter thirty and

a quarter so I've got two inches of

overlap so basically I just need a mark

here at about should about an inch and

then when I slide over to that I know

that my window is pretty close to being

centered okay so I'm going to lift the

window into place we've got our block

sitting here it should be level but once

I have it in place I'll just double

check that it is

true and slide it over side to side and

we should be all right kind of start by

setting your bottom sill on those blocks

that we attach there and then just slide

the window into place slide over till I

can see my pencil mark on the side so

we've got it sitting in there I'm just

going to grab the level again set it on

the bottom just to double-check level

levels good the windows were square but

we'll just check the plumb as well and

it's fine too so that window is good

right where it's sitting we've got it

embedded back into the silicon I'm going

to mount it with screws

basically I'll put a screw on each top

corner to start with and then I'll

explain the screwing after that okay so

the screws that you should use for this

type is not just a deck screw because

they have a tendency to pull right

through the plastic you want to use a

truss headed screw which is got a really

big flat head with a flat back on it so

it once it tightens up to that vinyl

surface it's got lots of surface area to

suck back and not actually pull the

screw through the vinyl so use a truss

headed screw make sure it's equivalently

long enough to you know grab into a good

inch of wood back in there and we want

to place our screws about every 16

inches apart on a window like this to

properly fasten it in so I'm just going

to finish screwing it off and getting it


okay so I've got all my screws put into

place I'm just taking a scrap block and

I'm going to go around the outside and

squeegee off any excess silicone that

came out just so that we don't have that

in the way and we're trying to do the

siding creating any little lumps and

bumps there I'm just going all the way

around not squeegee off as good as I can

and as well on the bottom just got to

watch when you're doing the bottom that

you don't reseal up spots that you tried

to leave empty or without silicone okay

so we've got that I'm going to come back

up top here and tape my house wrap to

the membrane and obviously I'm just

using the tuck tape that you normally

would use on your house wrap I can find

the end of the roll so just be sure that

that flap up top is cut up high enough

that you're taping on to the membrane

not really onto the window

okay so just press that on really good

we need a couple little spots up on

those handle cut to me a couple little

strips I mean seal it up really nice

okay so we got that in there just look

down here make sure none of our cuts are

exposed no everything's covered up there

okay that's that now I can put on the

screw covers the caps that go on the

channel there if you have a rubber

mallet or a rubber handle hammer that

just goes snaps right in there pretty

nice and it gives a very attractive

finish when you're all done I thing I

like about this type of window the

renovation brick mold is down the road

if I mean obviously at some point

somebody's going to have to change these

windows in 30 years or whenever you know

you don't have to take siding off to do

it pop these caps out remove the screws

pry the window out and you don't have to

disturb everything else around it we're

with the nailing fin it's under whatever

your exterior finishes so you've got to

either cut it wider and finish refinish

it with some type of finish or you know

restock or reside your whole house so so

this is nice for down the road and it's

I think it's pretty attractive myself a

little wider trim work around the


okay so I'll finish popping on that last

one and then we'll maybe have a quick

look inside and wrap things up the last

thing I just want to show you now we're

inside the garage you can see we've got

nice equal space on each son really on

all the sides and that'll make it easier

for us to spray home you want to have a

good quarter inch or in this case we've

got a good half an inch all the way

around it gives you lots of room to get

in there and insulate properly so that's

our video on installing a window and new

construction it demonstrates how to make

a proper sill pan there are a few

different variations of the sill pan but

the basic idea is to get it all covered

up and sealed up as best you can with a

membrane and again the main thing to

remember on the membrane is lapping it

working your way from the bottom up so

that all your upper pieces overlap the

one below it so that's that's about it

we will we do have another video on

YouTube here on our Channel that

explains a insulating window both using

spray foam and the bad insulation so you

can check that out we do have the form

on our website at house improvements

comm you can go to the forum ask any

questions about this video or any other

video or anything you want related to

building construction and I'll do my

best to answer it if I don't maybe

there's somebody else on there that does

have the answer for you so I guess

that's it for now

we'll see you next time