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Username Post: Mulling windows - joining together        (Topic#358295)
LtFrankDrebin 
Super Senior Member
Posts: 5264
LtFrankDrebin
Loc: Coopersburg, PA
Reg: 01-25-01
10-02-19 07:16 PM - Post#2776954    

Can vinyl replacement windows be mulled without a mulling kit? I have Simonton 5500 replacement windows that need to be mulled, but I can't afford losing any rough opening width. I don't see why I can't fill that gap in-between the joined window frames with maybe oak installed with adhesive and screwing-together. I ordered the two windows based on the measurement of the rough opening width, not accounting for any additional width a mulling kit might add.

'56 210 Townsman wagon 6cyl/3spd OD | '58 Impala Sierra Gold 348


 




SleeperSS 
Senior Member
Posts: 2602

Loc: Spanaway, Wa
Reg: 10-17-04
10-15-19 09:38 PM - Post#2777990    
    In response to LtFrankDrebin

The joined area would be very weak. How big is the gap between the two windows? The "I" channel that goes between them doesn't take up much space. Got pics?

U.S.C.G. "So others may live"

'96 S-10 SS
'02 BlaZeR2





 
LtFrankDrebin 
Super Senior Member
Posts: 5264
LtFrankDrebin
Loc: Coopersburg, PA
Reg: 01-25-01
10-21-19 06:10 PM - Post#2778465    
    In response to SleeperSS

I found a way to join the window frames together. I had to shave off some of the edges of the frames to make the contacting sides flat and to get the overall width I need (the windows came about a 1/4" wider than what I ordered). I used vinyl adhesive on the mating surfaces and ran bolts through the holes that would otherwise have been used by screws to attach to the rough opening. On the interior side, I cemented a length of 3/4" PVC "lattice" across the joint. On the exterior side, there was about a 1/4" gap that I filled with caulk, but funny enough, some of the window frame that I removed would work great as a trim strip on the exterior to cover that caulk gap. Luckily, I didn't destroy it in removal. I cut pieces of that vinyl molding that came with the window to cement across the top and bottom joints, since there was enough of a recess there for these strips. That window assembly was solid when all was said and done. Now to find a vinyl adhesive that doesn't dry immediately. Not too happy with Christy's vinyl adhesive. You have no working time. I had to hustle when I joined the first two windows, but I think I ruined the adhesive when I tried to thin with lacquer thinner. Now it dries even faster!

'56 210 Townsman wagon 6cyl/3spd OD | '58 Impala Sierra Gold 348


 




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