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Old 07-27-2014, 09:31 AM   #1
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small roofs ?


i am just thinking here. but if i were to build a small roof, say 3-4' out and 12'ish wide. what board would i use ? i am thinking the underside would be exposed, but idk.

and i am thinking about building a small gable(?) roof, say 6'x6' over the back door.

each of these would be attached to the house(of course). but since i am thinking that the underside of each would be exposed/visable, how would i attach it to the house and have it not look bad ? stick frame house.

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Old 07-27-2014, 09:43 AM   #2
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small roofs ?


If it's going to be open 1-1/2 T&G pine can be used.
They use it all the time when building log homes with cathedral ceiling.
Siding would have to come off, rafter, not the sheathing is attached to the house, columns hold up the other end.
Google "porch roof framing details" for some ideas.

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Old 07-27-2014, 10:00 AM   #3
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small roofs ?


i would use a ledger board bolted to the house. rafters to the ledger board. but how would i attach the rafter to the lb and have it not look ugly ?
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Old 07-27-2014, 10:37 AM   #4
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small roofs ?


For frame, boards can be sanded or planed. Edges can be routed for simple, better look. For attaching frame to frame, nails or screws can be hidden or plugged. Instead of toe nailing the rafters, they can be nailed/screw from the other side. Opposite rafters can be attached same way and heads filled.

For roof's under side, use what the budget allows for outdoors. It can be over layered with 3/4 plywood and use 1" roof nails for shingles. For small roof over my basement stairs, I used 2 layers of 1/2" b grade exterior ply. Bottom layer stained before the install. 1" roof nails.

Flashing detail can add to better look. Instead of regular zinc, try brown side of heavy gauge aluminum rolls, and crimping the edge on a brake can keep in flat. Copper is always out of my price range.
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Old 07-27-2014, 10:42 AM   #5
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small roofs ?


If you post a picture of the side of the house where your thinking of building this someone may come up with some ideas on what would look right.
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Old 07-27-2014, 10:46 AM   #6
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Quote:
Originally Posted by carpdad View Post
Instead of toe nailing the rafters, they can be nailed/screw from the other side.

For roof's under side, use what the budget allows for outdoors.

I used 2 layers of 1/2" b grade exterior ply.


Bottom layer stained before the install.
that would make the rafter system pretty heavy and bulky = all but impossible for me to get it up there.

outdoors wood. so your saying i need treated boards ?

ya know, i had not even thought about the shingle nails coming through the sheathing. 2 layers, good idea.


good idea.
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Old 07-27-2014, 10:48 AM   #7
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small roofs ?


it just flashed in my head. i could use joist hangers. but paint them black first. and use other black painted brackets. this could actually make it look nicer. hmmm.
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Old 07-27-2014, 11:14 AM   #8
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small roofs ?


here is a very crood drawing of my idea.

Last edited by Fix'n it; 07-27-2014 at 09:20 PM.
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Old 07-27-2014, 05:04 PM   #9
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small roofs ?


Not seeing why that's a kool idea.
Why would you want to eat up more deck space with head banging supports?
Already lost a lot of deck space by that set back in the deck for the stairs that never should have been done like that.
What do you hope to gain by adding these roofs?
House wrap not over lapped or taped.
It would be near imposable to seal a roof against the house installed in that area
There's also no required hand railing for those steps.
Sorry man just being honest.
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Old 07-27-2014, 05:06 PM   #10
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Old 07-27-2014, 08:39 PM   #11
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small roofs ?


Quote:
Originally Posted by joecaption View Post
Why would you want to eat up more deck space with head banging supports?

Already lost a lot of deck space by that set back in the deck for the stairs that never should have been done like that.

What do you hope to gain by adding these roofs?

House wrap not over lapped or taped.

It would be near imposable to seal a roof against the house installed in that area

There's also no required hand railing for those steps.

i would build them to minimize head banging.

the original plan was a smaller deck. sso, as it is now, i have much more deck space. and i wanted the stairs like that. so "never should have been built like that" is incorrect.

something over my head, while i am at the doors, and it is raining.

the HW is well overlapped and there will be tape.

being so far up under the eve. would i be "required' to be fully sealed ? i don't see much rain getting up there.

lol, dude, there's no railings at all. i'm still working on it. other than the grill, the deck is not in use.
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Old 07-28-2014, 09:48 AM   #12
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small roofs ?


Outdoors - I meant anything but mdf panels grooved to look like t&g. Roof will cover the sheathing, but there are really humid days as well as dew collecting on the materials.

For 4' shed roof, I think you can have 2x4 rafters spaced more than 24" apart, esp if you end up using more than 3/4" thick roof sheathing. You could skip cutting birds mouth as well. For roof sheathing, rafters can be spaced and the sheathing cut to land on rafters so that you don't have to take 4x8 sheets at once.

If you use the joist hangers, and they really are better than anything else, think about covering most of the hangers by filling in the bays. Cover the thickness of the hangers by bevel cutting the fillers but dont cut all the way.

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