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installing a "VT" window

RedfordHenry's picture

For those who haven't heard of this type of window installation, it's a regular window (sometimes DH, sometimes just a stationary sash) tucked on a gable wall just below, and parallel to the rake trim.  It's installed on a slant to match the rake angle.


I have an attic buildout to do and it'll include installing two of these in a gable.  Walls are 2x6 with 1/2 plywood sheathing, and 6" cedar clapboards.  I'll be installing Andersen stationary casements (C135) about 12" down from the bottom of the rake trim, roof pitch is 12/12. 


I am thinking of building rough opening boxes with 2x6s, then inserting them into the wall (chopping out the necessary studs and sheathing).  No headers or jacks though I'm thinking that I will double up the lumber on the RO boxes.  Then panning the two lower sides with peel and stick membrane, the install, flash and trim as you would a normal window.


Anyone have a better idea?   

(post #107664, reply #23 of 32)

Mike,


Are you simply being argumentative? Because you can't possibly be that ignorant of the physics of building loads.


if the order doesn't matter then it is chicken and egg


Whether you build the understructure or the overstructure first doesn't change the way the loads are resolved to the ground once it's all complete.


There is no chicken, there is only egg (the structure).


 


 

Riversong HouseWright

Design *  * Build *  * Renovate *  * Consult
Solar & Super-Insulated Healthy Homes
 
Riversong HouseWright
Design *  * Build *  * Renovate *  * Consult
Solar & Super-Insulated Healthy Homes

(post #107664, reply #11 of 32)

Are you suggesting a header over the entire diagonal opening


With no overhang and 2x12 rafters, there's not a lot of roof load that can't be supported over a wide opening.


All I'm saying is that any interruption in a repetitive-member framing system must be designed to carry whatever loads are above it.


 

Riversong HouseWright

Design *  * Build *  * Renovate *  * Consult
Solar & Super-Insulated Healthy Homes
 
Riversong HouseWright
Design *  * Build *  * Renovate *  * Consult
Solar & Super-Insulated Healthy Homes