New Reno Problems - Cant get a builder for a small job.....No one wants to work

[Eli]

If the valleys are tinned and the felt weaved correctly, it doesn't make any difference how many valleys you truncate (edit* I don't really mean truncate, that was rash. I mean that you can run them into new valleys. I think you would only affect one valley with this method) . IMO more water will be going out the back than out the front anyway. I'd lay a drain under the new slab and take it out the front to daylight.

The new guttering is handling the new collection area of the new roof. The old guttering is minus the load covered by new framing.

[Dirty Doogie]

OK heres a plan of the roof with a pitched roof linking the two xisting roofs. I've marked the problem spot. You get 2 valley gutters coming down to a horizontal box gutter which has to turn a corner.

The area drained by this box gutter is at about 60% of the existing roof area. That amount of water will just flood the box gutter and the force of the water would probably push up a fountain as it goes around the corner.

Maybe there is a different roof configuration - if anyone can think of one please draw it in.

[Eli]

Seen.

A difficult roof.

A new double pitch roof doesn't have to come straight (perpendicular) across either, could it describe an angle from the peak of that rear hip and angle forwards toward the front corner of the garage?

In review, this is *exactly* what Derek proposed about thirty posts ago.

That's the great thing about the california style framing on an addition, it just drops straight on, any pitch or angle.

I don't think I'd even consider putting in big box gutters like that. Asking for trouble.

[Dirty Doogie]

I've posted a clean roof plan for aspiring designers to put their own lines in.

I tried doing diagonal ridge lines and cranked ridge lines, but there are lots of problems and I suspect the roof would not look that good for all the extra money spent.

One thing is absolutely certain - Mattles sure wasn't ready to get quotes LOL

[DvdHntr]

As a detailer I make a great engineer.

I can see the issue with the pitched roof.

I like the flat roof but is their a way they could run a dual pitched roof and have the ridge line at that corner? I think it could get the front looking better and have it tiled. The corner box gutter would be eliminated. There would be a small fascia area near the front with a funny detail and the gutters would still need to be quite big but the appeal of keeping the same roofing material may be worth it.

[DvdHntr]

I just had a thought. Could the front be lower pitched than the back and create like a skylight profile. Have the front roof quite low and draining to the front. And the back small section like a gable that connects in or a skylight type configutation.

Front roof to be about 10 deg to make it suitable for tiles. Back to match existing.

[DvdHntr]

Sorry, just to clarify. The green is the ridge lines for half trusses at the same pitch as the existing. The mustard yellow is the 10 degree pitch half trusses. I am only estimating the ridge lines as I am drawing this in MS Paint and like I said I am not the best truss detailer. Obviously there would need to be a beam at the junction of the two sets of trusses and at the ends of the roof.

[Dirty Doogie]

Now that is cunning. The front part works - it is just that bit of roof that tucks around the projecting section at the back I can't visualise. Circled in pic .That section of roof will have to be much steeper to meet the gutter line - but I think you've got a brilliant idea there.

It will need testing against roof measurements ie height of ridges etc

Cheers

[Dirty Doogie]

No that would work - well it seems to on paper - bloody genius DVD!! I'll give a greenie for that!

EDIT;
At What degree of pitch do you see the front plane of the roof being set?

[DvdHntr]

I thought Mattles would want the roof to blend so at 10 degrees to suit tiles. But if that is too steep then 5 degrees would be my minimum.

[Dirty Doogie]

Hmm - The garage looks about 15 - 20 degrees from the pics - the actual slope on the front bit might need a bit of playing with - the back bit of roof is tiny only about 900 across in plan view so pitch there will be very steep but not impossible - and it is the back of the house so you can fudge things LOL

I've redrawn your plan with a straight connecting ridge between the two structures - works for me! It will still get a lot of run off though and may still need supersized gutters.

Great job DVD!

[Dirty Doogie]

Ok heres a mock up of dvd's idea. Only rough mind - the new roof is a shallower pitch than garage and house - which now I look at it is more like 30 degrees.

[DvdHntr]

Ok heres a mock up of dvd's idea. Only rough mind - the new roof is a shallower pitch than garage and house - which now I look at it is more like 30 degrees.

Would the back section of roof, peak over the front section. I thought it would.

EDIT: I didn't read your post.

[Dirty Doogie]

I dont quite know what you mean Dvd!

[DvdHntr]

I dont quite know what you mean Dvd!

Sorry disregard what I said. I got confused and what you have done looks right to me.

I just hope Mattles agrees and it works out to be the best solution because it looks pretty good in the mock up.