2-Story Addition...Trials and Tribulations

kenny408

thanks for all those great tips! I started thinking about it for more than a year now.
With the budget cuts to our city, the planning dept is very not helpful anymore. No more appts, only walk ins between the hours of 8-9am, and 11-12 to grab a ticket. and guess what? lines form around 630AM.
I would love to talk with your friend. can you please PM his info?

ddawg16

Your too new to this forum to have PM abilities....

If you can pm me or give me an email address, I'll send you the info.

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kenny408

hmm i guess i am too new to send PMs. can you please email me?
kenny AT
casa
.
sjsu
.
edu

I hope this is okay to do. if not please delete.

kevinp22

Ddawg this is very impressive work. I agree you are no DIYer. No one can tell you are not a GC

ddawg16

I guess it's time for an update. Like all projects, they take a lot longer than expected.

To some extent I have been lucky that we did not have the normal rains for our season...instead of the usual 12-15" we get in 3 months, it was more like 6"....but still hard to deal with when the back of your house is open. It's hard to work on the framing when your spending most of your time putting up plastic and trying to keep water out. There were many a night where I stayed up all night vacuuming up the water that leaked through.





The big push now is to get the roof on so I can get it water tight....once it's water tight....I can work inside and not worry about rain....but then again, the rainy season is over so I have at least 4 months before I need to worry about it again....if I'm not done with the outside by then....well...time to hand in my man card.

One of my roadblocks was the eletrical power. My existing power feed to my house ran across part of the upstairs floor...hence, I couldn't put up the last section of wall and finish my roof rafters.....which are 'kind of' necessary to hold the roof sheathing....



So, a good part of the last month was spent installing the new panel....and installing conduit and wiring between it and the existing house. I even had my oldest 9 year old son helping with wire pulling and fishing....he 'gets it'....has a knack for it....



New weatherhead and panel were bought off 2 weeks ago...wires moved over last week....everything is now on the new panel....and I'm getting circuits up in the addition....I have a lot less extension cords on the ground now....



The last wall is up....



And 'almost' all the roof rafters are on....





I just have this one section to finish....it's a bit complicated because I have to install outlookers at an angle....and I have 24" eves... It doesn't help that I'm also doing a lot of travel for work.



I have most of the eve boards done....I'm doing the T&G lap boards so that it looks the same as the existing house....a bit more work, but I refuse to let our house look like some of the 'stucco bricks' that have been built in the neighborhood....

And this is one of my time savers....I built a work bench on the balcony....I usually keep my compound miter saw there....easy to cut long boards....and I can also stand on it work on the section of eves in that spot.....



Once again...I'm out of town....another week without progress....well...construction wise.....my wife is now out actively shopping for windows and doors....and tile....she will be doing all the tile....

When I get back....roof sheathing....and moving the water heater...and then moving the washer and dryer to the rear of the house....a biggie for my wife....

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oh'mike

I've never seen solid blocking in a vaulted ceiling----Did the architect design that detail?

I would be concerned with ventilating the roof system above your insulation---Mike----

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ddawg16

Yep.....it's in the drawings.....

There is not going to be any vent.....I know your used to do a ridge vent....he in California...on a vaulted ceiling...you do nothing. Basically, you make sure you have a vapor barrier....and seal it up all tight....pretty much the same thing that happens to the walls.

Remember....it's Los Angeles....doesn't get that hot....doesn't get that cold.

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framer52

Could someone explain to this ignorant framer the reason for those blocks between the rafters?

AndyGump

He is going with a "non-vented" attic assembly.
This means that he will either have, say 2" of XPS or another foam board that will be tight against the underside of the deck or directly on top of the roof deck.
The foam will not allow moisture to condense in the ceilings as it is non-permeable, and create a thermal barrier.
Then fiberglass insulation or any other insulation will make up the difference for the required R-30.
Personally I really like this kind of assembly, especially for here in So Cal. There is actually a little less fire danger with this kind of set-up.

Andy.

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CoconutPete

Nice update! I was starting to wonder how it was going.

drtbk4ever

I just subscribed to this thread. Looking forward to updates.

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Bill

A DIY Noob that knows just enough to be dangerous.

M3 Pete

True for many parts of LA, especially in the South Bay, very moderate climate. And the humidity is relatively low as well, so we don't get a lot of condensation.

Out in Valleys we see 100+ and constant 90's in summer, so we need a bit more venting, at least on older construction.

Msradell

CThe same affect be achieved by just spraying with closed cell foam to the appropriate
thickness. Actually this practice is called "Hot Deck", roofers used to say this was detrimental to shingles but recent studies haven't shown that.

ddawg16

Because my plans say to do it....

Actually....I asked the same question....Typically, you don't need blocking for spans under 10' (or is it 8'?)....my span is 12' total....10' from ridge beam to the top plae of the wall....(I have a 24" eve)....

The blocking is right where the edges of the 4x8 sheets of CDX will land....in other words, all of my roof sheathing will have supported edges....

Yea....it was a little extra work....but it sure did stiffen up the roof....

I chated with the architect this morning.....I will need some venting if I don't do foam.....

I 'could' get by without it....but....It would be better in the long run to either do spray in foam or add vents along with a ridge vent....

I'm leaning towards foam....after hearing all the stories about fiberglass insulation....

I figure that summer time is the perfect time to do it....it will be about as dry as it can get....

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ddawg16

Update....add this to the 'tribulation' category.....

I showed my architect one of the pics....his response "No wonder they questioned the blocking".....seems I only needed it at the edge...not all the way across......oh well.....

I will be pulling it off when I get back in town....easier to do that than notch it for proper ventilation.......

Side note....looking at the plastic attic vent trays.....Anyone have any suggestions?

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