[Rick[_12_]]

I have 2 uPVC (1200 x 600) windows (non openers) to be fitted into a wood
construction out building.
Window opening is fully constructed with appropriate lintols - so no problem
there, and with a 5mm on all sides clearance.

The reveal is effectively solid wood - cavity closed at reveal.


My intended sequence is ...

# Fit cill ... pack to make it 5mm up off horizontal timber - screw fix in
place with a couple of 6 x 100mm csk screws
Q .. do I just pop these through inner (rear) chamber of cill, csk
slightly into top face of cill

# run in bead of silicone against the cill upstand

# put frame in place against his wet silicone.

# fix frame to reveal with 6 x 120mm csk screw - frame packed to make sure
screws do not 'bow' frame on tightening.
Q .. do I screw direct through box section (appropriate pilot hole) .. or
do I use a clearance hole in PVC box section to allow screw to pass though
top section and bite onto steel box section - covering with a cap ....
thought this may not be needed as screw heads are all hidden when glass is
in place anyway.

# thinking of using 4 screws - 2 per side each 150mm in from top & bottom

# Also fix bottom of frame to cill with 5 x 40mm ... i.e. a fix to the cill
rather than right through to wood frame.

Then fit glass, and then silcone frame to opening all round, inside & out.

Thinking of using standard 'Gold Screws' ... no need for Fraame fixings or
Tapcon screws .. as all fixing is direct into wooden frame.

Does this sound correct ?

[Stuart Noble]

Rick wrote:
I have 2 uPVC (1200 x 600) windows (non openers) to be fitted into a
wood construction out building.
Window opening is fully constructed with appropriate lintols - so no
problem there, and with a 5mm on all sides clearance.

The reveal is effectively solid wood - cavity closed at reveal.


My intended sequence is ...

# Fit cill ... pack to make it 5mm up off horizontal timber - screw fix
in place with a couple of 6 x 100mm csk screws
Q .. do I just pop these through inner (rear) chamber of cill, csk
slightly into top face of cill

# run in bead of silicone against the cill upstand

# put frame in place against his wet silicone.

# fix frame to reveal with 6 x 120mm csk screw - frame packed to make
sure screws do not 'bow' frame on tightening.
Q .. do I screw direct through box section (appropriate pilot hole) ..
or do I use a clearance hole in PVC box section to allow screw to pass
though top section and bite onto steel box section - covering with a cap
.... thought this may not be needed as screw heads are all hidden when
glass is in place anyway.

# thinking of using 4 screws - 2 per side each 150mm in from top & bottom

# Also fix bottom of frame to cill with 5 x 40mm ... i.e. a fix to the
cill rather than right through to wood frame.

Then fit glass, and then silcone frame to opening all round, inside & out.

Thinking of using standard 'Gold Screws' ... no need for Fraame fixings
or Tapcon screws .. as all fixing is direct into wooden frame.

Does this sound correct ?




Wedging the frame in place and then setting in expanding foam is the
usual method. This keeps it rigid while you do the fixings