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cutting brick to add window in bathroom

17K views 14 replies 7 participants last post by  dmaceld  
#1 ·
I have 2 bathrooms with no windows and would like to add a small row of glass blocks(4- 6" blocks) to let some natural light in each shower. The inside is just sheetrock but the outside is brick. These would be very high on the wall approximately at 6.5' or 7'. How hard is this to do and what kind of saw(tools) would I need to cut the brick out? Also there may be 2 to 3 rows of brick across the top of the glass blocks how would I support these?

Thanks,
Derek
 
#2 ·
I am no expert but I recently cut through brick and cinder block to make a door way.

If all you are doing is that small area you might be able to chissel them out of the morter. If you want to do it quick then rent a concrete saw or get a masonry blade for your skill saw (might not cut deep enough though) and they are pretty messy!
 
#3 ·
You need to support the framing with a header and the brick above the window with a lintel.
You can use a diamod blade on you saw or rent one from a tool rental place. I've cut openings in brick with a 7 1/4" wormsaw. The last inch or so needs to be chiseled. The rough part of the brick was covered by the door frame.
Ron
 
#5 ·
A grinder would be less trauma on the bricks. There's a good chance that some or all of the bricks over the opening will fall out on their own. If that happens, you can just incorporate the lintels into the opening when you put them back.
Is this a brick veneer house, or solid brick?
Ron
 
#7 · (Edited)
If it is brick outside then like said you need to use a skillsaw with a masonry diamond blade in it.
Lowes has a pretty cheap diamond blade that should be good enough for what you need to do. I 'think' it cost about $15.00-$20.00.
Only problems I can see is that if you have a really cheap skillsaw the thicker diamond blade may not fit. A friend of mine had the cheapest Sears skillsaw and it would not accept the thicker diamond blade.
As for the lenthal header on top get rid of the top row of bricks and cut or chizel the mortor joint on each side to accomadate the lenthal. From my experience with regular brick cutting once you cut the bricks out the top row will not come down.
Check for wiring-pipes or anything else that may be hidden in the area you are going to cut out.
BTW: Home Depot and Lowes carrys the glass blocks. Make sure to allow enough room on the sides and top to accomadate the glass block joints and about 1/2" for each side and top and bottom.
 
#8 · (Edited)
I would just totally remove enough bricks fom the area large enought to complete the window work, then hire a mason to reset the bricks. Just remove the two or three courses that will be above the window, because they are going to be in the way of installing the lintel anyway. The mason will weave the bricks back in and return the end pieces properly for a quality finished job. Just cutting through the bricks as you suggest will not work because most residential bricks are cored (have holes through them) and cutting is going to expose them to view.The mason will also set the lintel as he lays up the bricks.Remove the first couple of bricks by either cutting the morter joints, or just beat them out with a hammer and chisel.Once you have a couple removed you can salvage the rest by tapping along the morter lines with a brick chisel until they loosen. Just take your time and you will be able to save enough for the repair work. If you get a mason to look at it first, he may recognize it as a readily available brick and not woth the trouble of trying to save.
And like Ron said, you will probably need to install a header directly under the wall plates anyway.
 
#13 ·
OK well I hadn't intended on causing a rukus here but I see I have one.

I honestly belive I can do the job, I've never done any masonry but like cement man says its not rocket science and its only 4-6 glass blocks for each bathroom.

I do have a question as I am confused by some of the postings. as I understand it the glass blocks will sit ON the bricks and be flush with the outside of the bricks and on the inside of the bathroom I will trim out the wall to the glass blocks, adding a header to the studs in the wall. Is this correct?

Mortaring, do I just laydown a bed 1/2" or so thick and place the blocks on the bed and mortar between them and on top of them? Whats the easiest way to completely fill the gaps with mortar? Whast the setting time for mortar? Any special type of mortar to buy?
I actually have over 300 extra bricks from when I took out the fireplace hearth so If I break some getting them out its not a big deal.

Many thanks for the advice guys
 
#15 ·
I do have a question as I am confused by some of the postings. as I understand it the glass blocks will sit ON the bricks and be flush with the outside of the bricks and on the inside of the bathroom I will trim out the wall to the glass blocks, adding a header to the studs in the wall. Is this correct?

Mortaring, do I just laydown a bed 1/2" or so thick and place the blocks on the bed and mortar between them and on top of them? Whats the easiest way to completely fill the gaps with mortar? Whast the setting time for mortar? Any special type of mortar to buy?
You can get a lot of these questions answered by checking out the installation instructions on the Pittsburgh-Corning web site. They offer several options for installation. Mortar is a specific glass block mortar. If you do more than one row they have spacers to help keep the blocks set just right. There is a little more to it than just slapping down mortar and setting a block in it, but you can do it. I installed a 5 block high by 8 block wide glass block window in a bathroom wall several years ago. A friend helped. We mortared it in flush with the exterior of the brick veneer. Didn't come out perfect, but it was pretty d*** good! :yes: When we sold the house last year the buyers were gah-gah over the window. What more could I have asked for!:thumbup:
 
#14 ·
The glass block sits on the studs usually but often ends up straddling the studs and brick. The brick exterior sill has to be pitched to drain. Both the interior top studs and exterior bricks need support. The interior may be a 2x flat if it is a narrow opening. The exterior brick needs to be removed to your cut then toothed out for the mason to weave in the finished edges and install a lintel and match the header to the rest of the house brick. Do as much as you are comfortable with and call a mason, you have more important things to do than learn a new trade possibly at the expense of devaluing your home with (nothing personal) shoddy work. Joe.