Windows sizing to fit openings

[akist]

As the window frame is completely sealed both on the outer and inner skin (if fitted correctly), why are we closing the cavity with extra materials? Isn't the window frame good enough?

 

[Harry Bloomfield]

As the window frame is completely sealed both on the outer and inner skin (if fitted correctly), why are we closing the cavity with extra materials? Isn't the window frame good enough?

A window frame is not that deep, as to do that. Normally a window frame is about the depth of a single brick (or even a bit less), so the frame sits slightly back from the brickwork face, with a sill added at the base.

 

[Ian H]

The window frame isn’t as wide as the cavity.

I measured 1 window exactly and it didn’t fit. Best thing was we posted it out through the upstairs opening to pull it back into the opening.

I had the get the missus and kids to hold it while I backed the van upto the house, then I trimmed the fins off the sides to make it fit.

 

[Notch7]

while I backed the van upto the house

You mean you had to ram the windows with the van to get them in, they were that tight

 

[Notch7]

As the window frame is completely sealed both on the outer and inner skin (if fitted correctly), why are we closing the cavity with extra materials? Isn't the window frame good enough?

The cavity will show on the internal reveal.

The cavity closure has a ribbed plastic face to allow plaster to stick -although we always fit plasterboard on the reveals, as it seems easier.

also the cavity closure acts as a damp proof layer to make sure no plaster can touch the external skin.

 

[Ian H]

You mean you had to ram the windows with the van to get them in, they were that tight

Unfortunately I could only use that technique downstairs

 

[^woody^]

The window frame isn’t as wide as the cavity.

I measured 1 window exactly and it didn’t fit. Best thing was we posted it out through the upstairs opening to pull it back into the opening.

I had the get the missus and kids to hold it while I backed the van upto the house, then I trimmed the fins off the sides to make it fit.

View attachment 159487

Jeez, you have nosey neighbours.

 

[Ian H]

Jeez, you have nosey neighbours.

I rent a room to 34 illegals

 

[Harry Bloomfield]

I rent a room to 34 illegals

I fitted our DG 30 years ago myself, with some help. When they all needed replacing around 5 years ago, I looked at doing them myself, but pricing supply on up versus supply and fitting, it seemed not worth while.

 

[Ian H]

I fitted our DG 30 years ago myself, with some help. When they all needed replacing around 5 years ago, I looked at doing them myself, but pricing supply on up versus supply and fitting, it seemed not worth while.

I’ve just done that with my porch, I priced it DIY at £2150 but hoped I could get someone to do it for similar, with them getting the door and windows cheaper. I got quoted £2850.

 

[Dereekoo]

I fitted our DG 30 years ago myself, with some help. When they all needed replacing around 5 years ago, I looked at doing them myself, but pricing supply on up versus supply and fitting, it seemed not worth while.

30 years ago we were all a lot younger,fitter but poorer, its nice when you get to the stage where you just can hand over the money and get the job sorted in a few days

 

[Harry Bloomfield]

30 years ago we were all a lot younger,fitter but poorer, its nice when you get to the stage where you just can hand over the money and get the job sorted in a few days

..and when it all goes wrong - you can blame them too

 

[catlad]

PVC in direct sunlight will want to expand a fair bit so I wouldn't try fitting them to tight, especially if you are fitting them in winter.

 

[akist]

Thanks for all the help and advice.