Single Slope ROOF FRAMING - the details

[@boyonabridge]

I'm an easy sell for your science and engineering, but when you illustrated the canoe storage my checkbook flew open.

[@jmondanaro]

Single slope roofs can also maximize solar capacity if your building is able to be oriented to take advantage of

[@stevenbaczekarchitect9431]

very little solar access here

[@HistoricHomePlans]

A question for Steve 2:15 I like the lapping of the rafters. It's simpler than butting them together and using straps. But that means that when you put your 4'x8' wide sheathing above, you don't have a continuous alignment. Do you offset your sheathing so that the panels still butt on rafter centerlines but the sheathing panels on one side of the beam do not align with those on the other side of it?

[@stevenbaczekarchitect9431]

yes

[@LegacyViewsICFhomeBuild]

I have an almost exact identical mono slope roof design on the 5-Story multigenerational ICF house that I am DIY Building. Another benefit has to do with your favorite word which as we all know is continuity :) My ICF roof rafters are actually inside my ICF walls. So above my roof sheathing I will have 3' of EPS foam and then another 5.5" of EPS foam with metal studs embedded in them. Then Sharkskin ultra SA that wraps around the EPS foam layers and down the wall. The walls have rubber paint that goes all the way down to my pango wrap which goes under my 5' wide footers and under the concrete slab in the 6'2" "crawlspace" Basically I took continuity to the extreme. And thanks to you I will be using the intello air barrier under my roof rafters with Zero penetrations because of the strapping that I will be doing on the ceiling. So thanks for all you have done to educate me and everyone else about building science!!!

[@davidnewkirk2438]

Wow 5 story ICF! Just subscribed to your channel

[@davepetrakos475]

I was anxious to see the support posts for the LVL to be described.

[@stevenbaczekarchitect9431]

6X8 eng wood column

[@BadGolfer-c9c]

Same. The wall beams and the foundation detail to carry the weight to the dirt.

[@travelfeet]

What were the considerations for an LVL versus steel for the center beam?

[@stevenbaczekarchitect9431]

Framers like wood - and it fits

[@robertstrauss8180]

I'm considering a similar situation, but using full span TJI's instead of 2x12s, and a much smaller LVL beam to limit deflection. Any drawbacks to this approach?

[@stevenbaczekarchitect9431]

None if engineered properly

[@castorriverfarm5236]

I find 2 x 10s to be more economical per unit of span(when compensated for with reduced span) compared to 2x12s, often having to go closer together. I find them much more economical compared to ijoist. Make sure you compare the exact numbers relative to span. Until you compare, hard to assume properly.

[@CanadianParamedic]

Great video Mr Baczek. Out of curiosity, how much smaller of a beam could be used switching to steel? That beam just seems massive.

[@stevenbaczekarchitect9431]

Please - "Steve".......I'm sure we could have used a 12" dp section of steel

[@2point..0]

Steve, I see that 1 x 3 strapping was up, what is the plan for the insulation the roofing??? I am planning on a Single Slope roof garage too...Can you share that drawing with me, its so nice!!! And I planning on using the garage roof for solar panel instead on the house which consists of a double shed roof and I am planning on an attached Green House and (below the 4" concrete slab will be a sand battery and runing pex tubing and and another set of lines under the ground out to a radiant floor heating in the garage) that I am going to build in Maine hopefully... Liked#34 N Subscribed!!!

[@stevenbaczekarchitect9431]

The roof was a hot roof with 4" CCSF

[@2point..0]

@@stevenbaczekarchitect9431 I am planing on the same hot roof concept, for the house which consists of a double shed roof too... Thank you!!!

[@dustinmarquand5301]

The storage point is great too. Vs attic storage trusses, easier to access.

[@stevenbaczekarchitect9431]

Agreed

[@kc9scott]

Where I am, if you want a hanging unit heater in the garage, the bottom of the heater needs to be higher than the door openings. This design would allow space for that.

[@richdobbs6595]

Why did you spec out a 12" overhang, and then not nail the last 6 inches of the rafter? Or did the lengths just work out so you had 12 inches of overhang, and 12" of nailing surface for the attaching the rafters is sufficient?

[@stevenbaczekarchitect9431]

There was a nailing schedule to nail the overlap, just may not see the nails+

[@richdobbs6595]

@@stevenbaczekarchitect9431 I saw some nails on this side, but maybe the full pattern of nails is on the back side.

[@kc9scott]

AFAIK you don’t really need the rafters to have any real stiffness along the quad-LVL beam. For the rafter design (taken by itself), it should be OK if the centerline of the roof deflects down (butterfly bend) to meet wherever the quad-LVL happens to be. You just prevent it from being an actual bend by installing the quad-LVL in the proper position. The important part is that with heavy roof loads, you don’t get any sudden height change from one piece of sheathing to the next, which would tear the roofing materials. That’s the real purpose of the nails between the two 2x12s.

[@thebeckro]

Can you explain the use of dimensional lumber vs engineered or truss style in relation to the continuity of the member over the beam as you attempted with the nailed overlap?

[@stevenbaczekarchitect9431]

The 2X12 was structurally adequate for a future solar array, and the eave ends are easily profiled from a 2X12 making the eave conditions easy to fabricate

[@Volkan-h3e]

it was not clear in drawng but I guess there is a pier/footer that supports the front end of lvl beam? thx

[@stevenbaczekarchitect9431]

tHERE IS A 4 FT DP FOUNDATION WALL WITH FOOTING BELOW

[@Mostviews111]

The thing i don't like about them is no room for insulation and they are hard to heat. I'd rather drop the ceiling down a bit and have an air gap.

[@andrewschafer8986]

Why not use steel or tji?

[@stevenbaczekarchitect9431]

Framer preferred LVL, and Engineered joists complicate the end conditions. A 2X12 is easy cutting at both eaves

[@michaelomalley6726]

why not parallel chord open web trusses and no lvl...lvl is an eyesore

[@davepetrakos475]

My guess: CONTINUITY! This Baczec video is different from past vids. Steve briefly described the rest of the house as having similar roofs, which quite possibly have exposed wood beams. Leaves us to understand 1) The homeowner wants privacy, hence not showing any other parts of the house, 2) the homeowner is active outdoors and prefers to not rent canoes, bikes, etc. The equipment can be stored on one side, up high in the garage.

[@stevenbaczekarchitect9431]

It's an eye sore to you - clients are fine with it. For them the garage is a place to park two cars....that's it.

[@edmallon2851]

an architect that doesn't know the actual size of the garage?

[@stevenbaczekarchitect9431]

That's why I got plans......

[@ralphjessee2688]

These tandem garage openings are pure garbage from a daily use standpoint. 16' or wider bay openings or forget it.

[@dustinmarquand5301]

Nah. I love the two separate doors on my garage. Easy to keep space between vehicles .

[@davepetrakos475]

It is cheaper to fix one car and door frame of building than it is to fix two cars. Less debris blows in when only one ~8' door is open. If quick with open/ close it can make a difference in temp change. More privacy from prying eyes from seeing your stored treasures on one side. However, you lose the picture window effect when sitting in garage when it has been transformed into a tv/eating lounge.

[@stevenbaczekarchitect9431]

Here's a thought, on your house you get what you want.......and 16' doors in winter or fall with wind blowing suck, garage fills with snow of leaves.

[@stevenbaczekarchitect9431]

I agree

[@kc9scott]

This garage looks as if the individual doors are luxuriously wide compared to typical US single-bay doors. IMO a 16’ door for a dual bay is very cramped. 16’ for a single bay is pointless.