ᐅ Is it acceptable to fasten downpipes using insulation anchors?
Created on: 6 Jul 2016 00:40
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barcardiHello,
our contractor installed the downpipes with a distance of 10cm (4 inches) from the outer edge (16cm (6 inches) external wall insulation system) using 95mm (3.7 inches) insulation anchors (5 downpipe brackets). These are fixed exclusively in the external insulation and look exactly like the insulation anchors I bought at the hardware store for my mailbox.
The construction supervisor noted this as a defect, stating it does not comply with recognized technical standards.
The contractor, however, insists this is not the case. The insulation anchors prevent thermal bridges and do not damage the external insulation despite the lack of movement allowance as would be the case if the brackets were fixed directly into the wall. He also pointed out that this solution is offered by some companies for this purpose.
Does anyone have experience with this? Is this really a defect or could it be advantageous? I am concerned that the downpipes might eventually break together with the corner of the insulation system in strong winds, since the distance to the outer edge at 10cm (4 inches) seems quite small.
I would appreciate any helpful advice.
Best regards
barcardi
our contractor installed the downpipes with a distance of 10cm (4 inches) from the outer edge (16cm (6 inches) external wall insulation system) using 95mm (3.7 inches) insulation anchors (5 downpipe brackets). These are fixed exclusively in the external insulation and look exactly like the insulation anchors I bought at the hardware store for my mailbox.
The construction supervisor noted this as a defect, stating it does not comply with recognized technical standards.
The contractor, however, insists this is not the case. The insulation anchors prevent thermal bridges and do not damage the external insulation despite the lack of movement allowance as would be the case if the brackets were fixed directly into the wall. He also pointed out that this solution is offered by some companies for this purpose.
Does anyone have experience with this? Is this really a defect or could it be advantageous? I am concerned that the downpipes might eventually break together with the corner of the insulation system in strong winds, since the distance to the outer edge at 10cm (4 inches) seems quite small.
I would appreciate any helpful advice.
Best regards
barcardi
The downpipe is fixed to the insulation using pipe clamps, meaning it is not anchored into the masonry. The distance to the outer edge is 11cm (4.3 inches). Since the external thermal insulation composite system (ETICS) is 16cm (6.3 inches) thick, the downpipes cannot be anchored into the masonry without significant effort.
I have attached some pictures.
I have attached some pictures.
Longer screws won’t help here because there is no masonry at that point. If I drill deeper at that spot, the drill will just go sideways through the external thermal insulation composite system (ETICS) / external wall insulation.
If this turns out to be a defect, the downpipe will have to be completely removed, the gutter will need to be repositioned, and new holes will have to be made. The old holes probably won’t look good after repairs either.
If this turns out to be a defect, the downpipe will have to be completely removed, the gutter will need to be repositioned, and new holes will have to be made. The old holes probably won’t look good after repairs either.
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