Hello!

For various reasons, we are going to replace the roof on our shed and build a pent roof instead of a gable roof. I see two different ways to solve this, but I'm unsure if one is easier than the other. The height inside is good regardless of the option since the shed is already quite tall.

Option A) Build up the higher side by about 30 cm (red line). Advantages: The existing framework does not need to be altered. Disadvantage: Outer and inner walls need to be constructed for the added section.

Option B) Cut the existing walls to match the roof's slope (red marking). Advantages: Outer and inner walls do not need to be supplemented. Disadvantages: A new framework needs to be built for the upper parts of the walls.

What does the collective expertise think about this? Which option would you choose?
Diagram comparing two shed roof options, A and B, with one existing pitched roof. Each option has a marked red line illustrating structural changes.
 
A definitely. Just the thought of cutting through the wall as in B gives me chills. Yikes, standing on scaffolding with a reciprocating saw and cutting several meters.

You can build an exterior wall by putting up fascia boards around it. 2*17 cm with a little overlap. Easy peasy.
 
brumbjorn said:
A definitely. Just the thought of cutting through the wall like in B gives me chills. Yikes for standing on a scaffold with a reciprocating saw and sawing several meters.

You can build an outer wall by installing windboards around it. 2*17 cm with a little overlap. Easy as pie.
Thanks for your answer. Regarding B, I was considering using a circular saw, but maybe that wouldn't work?
 
Any more thoughts/opinions?
 
Using a circular saw works well if the wall is solid and doesn't start to strain or pinch the blade. Then it tends to kick back. And you automatically get weight on the blade in this case. Circular saws are dangerous. I've had more incidents with the circular saw than all other tools combined.

An advantage is that you can screw a board under your cut and rest the saw on it. But be careful. It might be possible to place wedges in the groove behind the circular saw to relieve it, and you also become stronger if you work at waist height.

My circular saw has a maximum cutting depth of about 7 cm. Check how thick the wall is.
 
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