ᐅ Can you roof an attached structure – connecting roofs at the intersection?

Hello!

I have a problem that should be simple for roofers, but I want to try to solve it myself.

I have built a new porch in front of the entrance door. It needs to be roofed. I have already installed the rafters and purlins and am now sheathing the porch roof.

Now I have the following issue. The porch is positioned perpendicular to the ridge line of the main house roof. The porch roof is supposed to be under the eaves of the main house roof. However, at the height where I am sheathing the porch roof, I am already hitting the gutter of the main house roof!

I have attached some pictures of the situation.

What can be done here? How do you connect roofs at a crossing point?

Apart from the fact that the design also failed spectacularly: with this brilliant move, you are not only the top own-goal scorer here but, I dare say, also among the frontrunners in the green forum.

Dismantling and rebuilding with a shallower pitch seems to me to be the most economical solution.

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https://www.linkedin.com/company/bauen-jetzt/

Hello 11ant!

Thank you for your reply! (And I really mean that!)

The most economical solution is to use shingles. After the sheathing, I still have 2cm (1 inch) left up to the gutter at the intersection, which should be more than enough. However, I didn’t want to choose the shingle option for aesthetic reasons.

That’s why I asked here; maybe a professional sees completely different solutions. For example, interrupting the house’s gutter could gain 10cm (4 inches), connecting both roofs and directing the water over the porch roof. Or using slate for the porch roof if it can be connected flush with the sheathing. Or creating a sort of groove (recess) at the intersection to channel the water sideways so that the porch roof is split into two parts: one under the main roof and one in front. Or other ideas...

Are these all not feasible?

By the way, the tight fit only happened because the ring beam had to be 10cm (4 inches) higher than planned, and an additional course of bricks was added above the window.

Seems I’ll have to get used to the shingles after all.

Is there only one visible downspout at the corner of the house on the gutter, or is there another one at the opposite corner? In that case, interrupting the gutter would not be a problem, and you wouldn’t have large amounts of water running onto the porch roof.

Although it is frustrating, wouldn't it be best to remove the small roof structure, dismantle one or half a row of aerated concrete blocks, and then reinstall the roof structure?

Perlfred schrieb:

However, I did not want to choose the shingle option for design reasons.

That would actually make the design disaster even worse in another dimension.

Perlfred schrieb:

Is none of this feasible?

It’s all, to put it mildly, a Pyrrhic victory just to avoid lowering the ridge height of the porch roof or, as my predecessor suggests, setting it deeper.

Perlfred schrieb:

By the way, it only ended up this tight because the ring beam had to be 10cm (4 inches) higher than planned, and an additional row of bricks was added above the window.

Ring beam and window—that sounds more like the main house than the porch, so there should have been more rather than less space between the two heights (?).

Just admit that you miscalculated the porch roof ridge height instead of coming up with absurd contortions.

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https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/