Share
I have a pergola attached to the house I just bought. When it pours rain it runs between the fascia and the gutter of the house.
Should the roofing of the pergola fit under the gutter of the house? The roofing of the pergola is attached to lip of the guttter.
I had a handyman clean the gutter and he also put something along the edge of the pergola roofing to prevent
rain coming through but it has not. He showed me what he did and it did not look like it would.
Hi @JeniA,
Welcome to the Bunnings Workshop community, it is wonderful to have you with us.
I just want to confirm to be sure, is the water flowing through the red seam or the green seam?
Based on your description, I am assuming it is the red seam. If you're having water flow through this seam, it is a decent indication that the issue is that the gutters are overflowing, and by the looks of it, the pergola is sloped away from these gutters, so it is unlikely that it is having a large impact on this.
Gutters are designed with an overflow point so that when they cannot handle the volume of water, it escapes in a controlled way rather than backing up into the roof or wall structure. During heavy rain, if water enters the gutter faster than it can drain through the downpipes, the water level rises until it reaches the overflow point.
On most gutters, the overflow point is the rear edge or a dedicated overflow slot. Once water reaches this level, it will spill out to prevent it from being forced back under the roof covering or into the eaves, which could cause internal water damage. In simple terms, the overflow acts as a safety measure, directing excess water away from the building structure when the gutter system is overwhelmed, and in your case, it is going through the gap between the gutter and the fascia.
My suggestion would be to contact a roofing plumber for their assistance in assessing the capacity of the gutter and making alterations as necessary. A higher volume gutter, or the installation of additional downpipes could be the answer, but they would need to assess it to be certain.
Allow me to tag @Nailbag and @Dave-1 to see what they think and if they have any advice to offer.
Jacob
