Installing windows

Jim1000

Hello Folks,

I will be installing a few pvc windows in an old house I am refurbishing next week. These will be pushed out from the inside as I am drylining the walls also.
Anyway, my question is, are the brackets and the expanding foam enough or is it normal to also put a bead of silicone around the outside edge?

Many thanks,

Jim

Redriddick

Brackets and expanding foam inside and seal around the frame on the outside.

Jim1000

thanks red. Havent done this before so hopefully it will go ok. all tips appreciated.

BryanF

Jim1000 wrote: »

all tips appreciated.

read up on
rising damp,
interstitial condensation,
condensation & mould,
air-tightness,
ventilation,
thermal bridging,
thermal mass,
themal bypass
http://en.wikipedia.org/wiki/Energy_hierarchy


read the
building regulations
passive house retro-fit guidelines
recently published DOE/NSAI retro-fit guidlines
even the homebond book

650gs

Do you know how to take the glass out ??? if you do it a far better job to screw through the frame

Kevin McCloud

Do what munster joinery do, horse out the old window, offer new one up to reveal, wedge it with wooden wedges, pump expanding foam all around, silicone around the outside and continue with your dry lining as intended.

DublinDilbert

Jim1000 wrote: »

thanks red. Havent done this before so hopefully it will go ok. all tips appreciated.

I installed 3 windows myself last year, this job is made (or lost) on the measurements. One I fitted from the outside and measured it knowing this as the room was already dry lined. The other two done from inside. For the ones from the inside I knocked off the inner revels either side of the window and they were a snug fit.

I did deglaze the windows and removed casement openings, so they were very light to handle. This meant I was able to use brick bolts into the frame. Glazing strips can be hard to get back in and you risk damaging the glass if not familiar. Also edge of double glazed panel is razor sharp.

Clean off the brick/cement all the way around the outside and use a good tick beed of low modulus silicone, stuff that won't shrink over time.

Also don't assume the original windows were in straight.

Hitchens

Kevin McCloud wrote: »

Do what munster joinery do, horse out the old window, offer new one up to reveal, wedge it with wooden wedges, pump expanding foam all around, silicone around the outside and continue with your dry lining as intended.