How best to fill gap between wall and fascia board?

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Hi,

Ive had a new porch built. Im just compiling a snagging list for the builder.

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I noticed theres a 2 inch gap into the roof void between the external wall and the fascia board.

I would have expected some insect mesh to be there, or to be no gap at all. (Im speaking as a non-builder! I dont know about these things, but I dont think there should be a gap at all?)

What do you think the best solution is to fill the gap? Can he retroactively fit insect mesh?

Also, theres a gap above the fascia board and slate. The felt is exposed and flapping about. How should that be finished? The felt cut straight and the gap siliconed?

Also, where the porch wall meets the existing property wall to the right, that gap shouldnt be there either right? Whats the best solution for him to finish that? Expanding foam and then render on it?

Thanks
 
Yes I would have thought you would have been able to screw one of them to the edge of the facia boards after painting. You may need to mastic the edge next to the wall to form a seal but could be ok just butted up to the render
 
There should be a gap to allow water to drip off the barge board and not soak the render. A recessed timber filler piece may be better than mesh. But mesh could be rolled and wedged up the back of the board and secured with ss nails or screws through the board

The verge should have a traditional undercloak and mortar fillet, or a modern dry verge system. As it is, there is a big risk of premature rot to the top of that barge board

The junction with the main house needs a flexible joint to deal with the inevitable movement of the porch. This should have had a proper bead fitted to give two nice straight edges for the render and masonry junction. As it is, that will take a lot more skill and care to form that joint - perhaps more than the builder possesses else he would have done it right in the first place.
 

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