Hi there, I am trying to create some technical drawings of windows for an LCA study where I will be comparing 3 different window frame materials, but to make the study more accurate I want the thickness of the IGU to be the same. But to do this I need to know how thick the IGU of the window should be. [b]I was wondering how one determines the thickness of this? [/b] I understand that there are different types of IGU out there such as; [color=#222222]low-e, low-e2, bronze, argon or krypton filled, double pane, triple pane, aluminum spacer, swiggle spacer. And these must each have ceretain attributes that make them optimal for specific scenarios - is there official documentation that defines their specific uses to help me choose which one to go for?[/color] Also does U-value, R-value and G-value come into helping make the decision? - if so are there equations? and again is there any documentation/ standards which show this? (the project is uk based so maybe uk documentation or standards are best, but anything would still be better than nothing.) [b]I suppose a better question of what I am asking is: When window companies are tasked with providing windows for a project such as that outlined below; how do they choose what IGU to use and how do they know what thickness is should be? [/b] The project is located in Aberdeenshire, Scotland and this means the average monthly temperatures are quite low, (see attached image) [img]https://cimg6.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1010x755/cc_temperature_range_a3c3909d18f1a7258cdacffb4ed66347e6bba633.png[/img] so therefore good insulation and higher solar gain I assume would be a focus. Sound dampening wouldn't be an issue as the project is rural and also security would not be of utmost importance. If there is anymore information that may be of assistance please let me know. Thanks in advance for any help!

Hello. I installed a new Andersen Frenchwood hinged patio door a few weeks ago. Both panels can open (active/passive). The frame is installed level, plumb, and square per the instructions. When I try to adjust the hinges, I'm not able to get a gap that is the width of the adjustment hex key (~1/8") like the instructions and video say should be possible. This is on both of the hinge side jambs. What seems to be happening is that I run out of adjustment range on both the middle and bottom hinges and can't push the door out any further. We've had some rain the past few days and I'm getting some water between the door and oak threshold. The water is coming in under both doors mostly near the jamb. My thought is maybe this has to do with never getting the hinges adjusted the way the instructions specify. I called Andersen and they suggested that I have the lumber yard I purchased the door from look at the issue in person. The lumber yard does have a door technician and they are willing to take a look but are booked 4 weeks out. Any suggestions of things to check while I wait? Thanks!