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#1
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Installing new windows
How does one get insulation between the 1/4-1/2" gap of the wood frame and
window frame when access is blocked by the nailing flange on the outside and gyproc on the inside? I guess I could cut the gyproc back another 1/2" or so but then I would need to fill it. |
#2
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I just had 33 new windows retrofitted in my house. The manufacturer's
instructions do not specify adding insulation between the window and the wood frame. The window frame itself is already insulated. But they do have very explicit instructions about the use of window wrap tape to seal the window on all four sides. Bob |
#3
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wrote in message oups.com... I just had 33 new windows retrofitted in my house. The manufacturer's instructions do not specify adding insulation between the window and the wood frame. The window frame itself is already insulated. But they do have very explicit instructions about the use of window wrap tape to seal the window on all four sides. Jeld-wen does specify to add either foam or loose fill between the rough opening and window frame. These are the most comprehensive install instruction I have ever seen. http://www.jeld-wen.com/windows/viny...id=58&groupid= |
#4
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Rob,
I've read and re-read the instructions. I have Jeld-wenn windows and each one had a paper copy of these instructions attached (same as on the website). I read the instrructions as going through step by step to install the window and tape it (under section called "Install window"). The section you referenced is called "complete instalation" and refers to adding exterior wall surface AFTER the window is installed and then insulating between the rough opening and the window frame. I interpret this to mean adding insulation between the exterior wall opening and the window frame. Please read it carefully and tell me what you think. Bob |
#5
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wrote in message ups.com... Rob, I've read and re-read the instructions. I have Jeld-wenn windows and each one had a paper copy of these instructions attached (same as on the website). I read the instrructions as going through step by step to install the window and tape it (under section called "Install window"). The section you referenced is called "complete instalation" and refers to adding exterior wall surface AFTER the window is installed and then insulating between the rough opening and the window frame. I interpret this to mean adding insulation between the exterior wall opening and the window frame. Please read it carefully and tell me what you think. Complete installation: Maintain gap of 1/4"-3/8" between window frame and final exterior wall surface (siding, stucco, etc.) unless otherwise specified by local building codes or exterior wall surface manufacturer; seal gap with backer rod and high quality caulk - This is done on the outside 7 Insulate void between rough opening and window frame with loose-fill fiberglass insulation; low/minimal expansion foam sealant may be used if required by local code This is done on the inside between the 2x4 rough frame and the SIDE of the window frame Here is a link to a picture of my window *temporarily* installed (yes, i know it looks bad). The insulation needs to be pushed in the side behind the gyproc before I complete the job. http://www3.telus.net/martik/window1.jpg As you can see there is very little room to get the insulation in between the frame without cutting back the gyproc another 1/4" or so 8 Apply interior trim as desired This makes sense because it would be the next step in finishing the inside. I discussed these instructions with Home Depot and they agreed they were major overkill. I'm just going to use tar paper or window wrap and a lot of caulk instead of metal flashing and forget about the plastic drain screen as well as side shims. Unless you live in a area with high winds and driving rain it should not be a problem. My old windows only had tar paper and never leaked. Most of my windows are under a 1-2' roof overhang Here is the install guide for some other windows I was considering: http://oasiswindows.com/InstallationGuide.html Martik AKA Rob BTW, how do you like the windows? I think the inside finishing, especially the corner welds, could have been better. Also the sliders only slide about an 1/8-1/4" into the frame whereas my other NAP windows slide almost to the end. I purchased them mainly because of the price and lifetime warranty. |
#6
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Your picture explains your dilemma well. I have run into this. It is a
little late now but for any future projects I will tell you how I deal with this. Before the window is installed I apply a 1 1/4"x 3/4", one sided, foam around the new windows jamb. This seals and insulates well. Some manufactures will sell the windows with this already applied. I buy it by the 50' roll at the local siding distributor. "Martik" wrote in message news:is_Hd.133258$KO5.130879@clgrps13... How does one get insulation between the 1/4-1/2" gap of the wood frame and window frame when access is blocked by the nailing flange on the outside and gyproc on the inside? I guess I could cut the gyproc back another 1/2" or so but then I would need to fill it. |
#7
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"calhoun" wrote in message .. . Your picture explains your dilemma well. I have run into this. It is a little late now but for any future projects I will tell you how I deal with this. Before the window is installed I apply a 1 1/4"x 3/4", one sided, foam around the new windows jamb. This seals and insulates well. Some manufactures will sell the windows with this already applied. I buy it by the 50' roll at the local siding distributor. Not too late, I've only 'installed' the one window so far. Excellent idea, I'll check it out. Thanks! |
#8
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"Martik" wrote in message news:tN2Id.133362$KO5.30849@clgrps13... BTW, how do you like the windows? I think the inside finishing, especially the corner welds, could have been better. Also the sliders only slide about an 1/8-1/4" into the frame whereas my other NAP windows slide almost to the end. I purchased them mainly because of the price and lifetime warranty. I'm at home using an offline reader, so I may look like a different guy, but I'm the same Bob or BillyBob (can't remember how I'm configured). I like the windows a lot. I don't have anything to compare them to from another housing experience. I live in Houston where energy efficient windows were unheard of 3 decades ago. The windows operate smoothly, made the house quieter and dramatically evened out the temperature in the house. I really look forward to seeing their effect in our horrible August heat. One thing that is really weird - they don't look all that dark to me, but when the sun comes through them, its like the radiant energy is completely stripped. During cooler weather, I always used to stand in front of a bank of windows where the sun comes in and enjoy the warmth. Now I have light coming through but no radiant heat. It freaked me out at first. and yes, I liked the warranty. My house is a light colored hardi-plank (newly installed) and the white window frames look much better than we ever expected. Bob |
#9
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"BillyBob" wrote in message nk.net... "Martik" wrote in message news:tN2Id.133362$KO5.30849@clgrps13... BTW, how do you like the windows? I think the inside finishing, especially the corner welds, could have been better. Also the sliders only slide about an 1/8-1/4" into the frame whereas my other NAP windows slide almost to the end. I purchased them mainly because of the price and lifetime warranty. I'm at home using an offline reader, so I may look like a different guy, but I'm the same Bob or BillyBob (can't remember how I'm configured). I like the windows a lot. I don't have anything to compare them to from another housing experience. I live in Houston where energy efficient windows were unheard of 3 decades ago. The windows operate smoothly, made the house quieter and dramatically evened out the temperature in the house. I really look forward to seeing their effect in our horrible August heat. One thing that is really weird - they don't look all that dark to me, but when the sun comes through them, its like the radiant energy is completely stripped. During cooler weather, I always used to stand in front of a bank of windows where the sun comes in and enjoy the warmth. Now I have light coming through but no radiant heat. It freaked me out at first. and yes, I liked the warranty. My house is a light colored hardi-plank (newly installed) and the white window frames look much better than we ever expected. Thanks, I'm looking forward to finishing the install. |
#10
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"Martik" wrote in message news:tN2Id.133362$KO5.30849@clgrps13... BTW, how do you like the windows? I think the inside finishing, especially the corner welds, could have been better. Also the sliders only slide about an 1/8-1/4" into the frame whereas my other NAP windows slide almost to the end. I purchased them mainly because of the price and lifetime warranty. I'm happy with them. They represent fair value. They work way better than the aluminum frame they replaced and they look fine on my house, especially with the new hardi-plank siding. They really met my goals of improving the comfort of my house (reduced radiant heating and lowered energy use). I live in Houston where we worry about the cost and comfort of air conditioning and don't give a flip about heating. We also worry about proper sealing against water and wind. Bob |
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