Framing Efficiently For Energy Conservation

UpNorth

There are some proponents of this, and I am not necessarily one. I am just here to ask about code permissiblity.

Two-stud corners permit better insulation. Use Simpson's clip for handling the sheetrock fastening.

Where interior walls tee to exterior, flatwise 2x4s on 24 centers permit better insulation.

Here is the question. Would either or these or both be allowed by your local AHJ?

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KentWhitten

I'm going to regret asking what AHJ stands for.

There are a few more ways also, but if it's very restrictive, then "they" must have details on what they want to see.

Both of those are used every day here.

Not sure of your orientation of your "L" backer.

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If you correct your mind, the rest of your life will fall into place ~Lao Tzu

Custom Cabinetry - Portland, Cape Elizabeth, Scarborough, Kennebunkport, Yarmouth, Falmouth, Cumberland, Ogunquit, Maine

Salmon Falls Cabinetry

rbsremodeling

Authority having Jurisdiction.

That would fly in DC and MD not sure about VA

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KentWhitten

Ahh.....never heard that before since we don't have anyone here in Maine that has any type of authority.

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If you correct your mind, the rest of your life will fall into place ~Lao Tzu

Custom Cabinetry - Portland, Cape Elizabeth, Scarborough, Kennebunkport, Yarmouth, Falmouth, Cumberland, Ogunquit, Maine

Salmon Falls Cabinetry

Warren

I like to rip down 2 inch foam to 3 1/2 inches and insert it into partitions prior to sheathing the wall

SLSTech

I use the ladders 16" OC all the time - 3 stud corner for insulation / drywall installation - I don't buy into using those corner clips (not sure if the 2 stud corner would pass anyways)

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rbsremodeling

I missed that good catch.

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strathd

Thats good, I like that. We use regular insulation before we sheath. I'll be suggesting that to builders.

Warren

Sorry Strat but I patented it. You will have to send me 20 bucks every time you use it on a house.

UpNorth

Both these, the 2-stud corner and the 24-OC-tee for intersects, are used here by some, and we've little to no inspection or plans review to deal with.

Again, the reason for the OP was to see what other jurisdictions, taking plans review and inspection more seriously, would do.

strathd

No problem. You might have to wait a while though. Still have'nt framed a house this year (unbelievable). 5 bucks for an addition cool ?

KentWhitten

They sometimes use 4-2x6's on the outside corner around here. They say for nailing the corner boards on. Rigid insulation inside.

I don't know how many homes I received a roll of fiberglass with my first load. The builder says "it's for insulating dead corners" and my response is "you know once it gets wet, it smells like cat piss right?" Then I suggest and get the rigid. I don't ever use fiberglass.

__________________
If you correct your mind, the rest of your life will fall into place ~Lao Tzu

Custom Cabinetry - Portland, Cape Elizabeth, Scarborough, Kennebunkport, Yarmouth, Falmouth, Cumberland, Ogunquit, Maine

Salmon Falls Cabinetry

Warren

Sometimes we put fg insulation in those annoying joist spaces that nobody can get to later. Other than that I agree with you.

strathd

I frame the way builders want it done of course. And it does vary on what they want. 4-2x6's in the corners, not much r-value there. Down in Miss. after katrina some wanted solid 4- 2x6's corners also. Myself I would rather have the r-value of an L (california corner). Properly sheared and strapped (Miss. code) I would think a cal. corner would be sufficient. 180 mph. winds, are those two extra studs really gonna make a difference?

A little off topic OP, we'll get back.

nailkiller1

c corners on corners insulated later
L corners on int pockets insulated later
On almost every house I do there is a spot that needs insulation during framing

wallmaxx

Yep. I call them U channels - I need solid wood at the outer corner for good corner board connection through the sheathing.

Birch

Yes, for at least the last 18 years. It was originally called 'Good Sense’ home construction.

KentWhitten

3 corners. One std. 2 I use here. Not sure if anyone else uses them.

__________________
If you correct your mind, the rest of your life will fall into place ~Lao Tzu

Custom Cabinetry - Portland, Cape Elizabeth, Scarborough, Kennebunkport, Yarmouth, Falmouth, Cumberland, Ogunquit, Maine

Salmon Falls Cabinetry

strathd

Yeah, did the box corners down in Miss. also.

UpNorth

One more time. The question is not whether you will or won't frame this way, as re exterior corners and tee intersects. Nor is it about your preference for method.

Will your inspectors permit details like this? Let's presume that whomever is paying your invoices insists you do them this way, regardless of your objections.

I have heard some who do plans and engineering say that it will not "pass." I would like to know how broad this is.