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Trucon01 10-08-2012 08:28 PM

Basement Window installation and tips
4 Attachment(s)
Hi All,

The next step to my basement project is to replace all 3 window well windows. Currently, they are double paned slider windows approx 35x21. I'm looking to install glass block windows with one of those pull out vents in the middle.

I have a few questions.

Framing the opening

Do I use PT wood and frame all 4 sides of the opening?


Fit the window, shim it level and then motar L,R,B but caulk the top?

Proper Measurement

From the pictures, am I measuring the window size correctly?

Window Recommendations

Since I liked the glass privacy block with vent, does anyone else have a suggestion for the windows?

joecaption 10-08-2012 09:14 PM

Why not just add frosted film over the window, a whole lot faster and cheaper.

HomeSealed 10-08-2012 09:21 PM

What is your reason for replacement? The reason that I ask is that the glass block will not offer any additional efficiency. If you just like the look and/or privacy provided, the recommended installation would be block to block. Eliminate the wood completely.

Trucon01 10-09-2012 09:07 AM

Since I was using all new material, I figured I would replace all the windows as well. However, the windows aren't that bad.

Maybe I can just remove the window, redo the framing and put the windows back in?

If I do that, any suggestions about completely re-doing the framing? PT wood, type of caulk, etc. This will be my first window project.

Trucon01 10-09-2012 07:46 PM

1 Attachment(s)
So I accidentally broke the damn window... Now I'm forced to replace it.

The rough opening is about 35x24. What are the guidelines for window sizes? Should I just get a window the size of the opening and use concrete screws through the window to the concrete or should I use PT wood, build a frame and take a new measurement? The measurement would be more like 32x 22.5.

I'm interested in one of the 2 below.


Any help would be appreciated.

huesmann 10-11-2012 03:06 PM

I would get a window that will fit your opening, shim it on the bottom, shoot some foam around the sides and top, then remove the shims and shoot some foam on the bottom, then install some trim inside and out.

Trucon01 10-13-2012 03:30 PM

1 Attachment(s)
Just making sure this diagram would be OK.

-- Gray border is the concrete window opening
-- Black lines are the PVC board (1x4).
-- Blue lines are tapcons

I plan to use PL Premium and tap cons to secure the board to the opening so the window has something to screw into.


cleveman 10-13-2012 10:24 PM

Don't use any wood.

I wouldn't use any fasteners either.

I call this a "friction fit".

Similar to what the previous poster stated, install the window by centering it in the opening both vertically and horizontally. I like to stuff the gap with fiberglass insulation, then put the appropriate diameter backer rod on the interior and exterior, then caulk on the exterior and finish the interior as you please.

One guy I was talking to wondered if the windows would stay in place. I told him they probably would blow out in the case of a gas explosion, and save the house from flying up in the air, then he could come and thank me.

The friction fit will hold them in place just fine. Can someone remove them and enter your house? Yes, but it would be faster to just break the glass.

AK Handyman 10-14-2012 02:27 AM

Vinyl windows you can take it to local glass shop & they can replace what is broken & cheaper then buying a new windows. They can do that with other window types too & saves a little on the pocket book.

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