So I called out the bedroom windows for being too small to meet the egress requirements (at a 2nd story bedroom they were 4.1 SF of openable area by raising the lower sash). The builder replied that it’s a double-hung window, so by removing the top and bottom sash, the required area is met.
I was at a loss for words. I said, well, I better research that. The NC code itself is below. As said above, no special knowledge or tools shall be required.
It’s not that creative. I’ve used that defense before doing bedroom additions, and it worked with AHJ. The ingress question is not really valid as most windows are locked anyway and would impede a firefighter getting in without breaking something. They do need to be tilt sash double hung windows though.
I vote in favor of the contractor, all I need as a firefighter is an opening I can easily break out. The AHJ’s in our area will allow double hungs. Second story DH sashes are often removed to deliver drywall in new construction.
Children do not know how to remove a sash. My 26 year old son couldn’t figure it out, sad to say. A fat-azzz couch potato needs to be able to get out the window. That’s my stance.
Did you read the code above? It clearly says no special knowledge or tools shall be required.
When the lower sash is open. Unobstructed area. The top part of a double hung window is obstructed.
As well, access height.
No tools or expertise required.
Everything you wanted to know about Fire Egress Windows.Egress Windows: Absolutely Everything You Will Ever Need to Know
5.7 square feet
The bottom of the egress window opening can’t exceed 44” from the finished floor. The minimum opening area of the egress window is 5.7 square feet. The minimum egress window opening height is 24” high. The minimum egress window opening is 20” wide.
Wisconsin egress windows. For any window used for exiting, the lowest point of clear opening should be no more than 60 inches above the floor. If the lowest point of clear opening is more than 46 inches above the floor, a permanent platform or fixture should be installed such that a flat surface at least 20 inches wide and 9 inches deep is located no more than 46 inches directly below the clear opening. The topmost surface of the platform or fixture should be no more than 24 inches above the floor.
[size=2]The window shall be openable from the inside without the use of tools or the removal of a sash. If equipped with a storm or screen, it shall be openable from the inside. The nominal size of the net clear window opening shall be at least 20 inches by 24 inches irrespective of height or width. Nominal [FONT=Arial][size=2]dimensions shall be determined by rounding up fractions of inches if they are ½”[/size][/FONT] inch or greater or rounding down fractions of inches if they are less than ½[FONT=Arial][size=2]”[/size][/FONT] inch. No portion of the window, including stops, stools, meeting rails and operator arms, shall infringe on the required opening. The area and dimension requirements may be infringed on by a storm window.
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regardless of builder, ahj, state or muni disregard or minimalization of a known life safety issue
we all should apply the strictest prescriptive standards available
irc & ibc are clear on this
while i personally may not agree with their thinking it’s my best defense
for those that don’t have a chart blank areas do not comply!
i don’t think the 5.69 get a pass…that’s me
this may only become a real issue when you are named as a defendant in a wrongful death lawsuit
i have personal experience via a close friend it didn’t end well for him or the defendants…ymmv