ᐅ How to Attach? Patio Roof with Cavity Wall Construction

Created on: 12 Apr 2019 21:15
S
sandokano
S
sandokano
12 Apr 2019 21:15
Hello,

I ordered a 6x3m (20x10 ft) aluminum frame canopy with glass from the Netherlands.
To save costs, I will have to do the installation myself.

Wall construction with gypsum plaster, sand-lime brick, mineral wool insulation, and clinker perforated brick


According to the delivery list, I will receive 12 stainless steel wire bolts, 8 x 60mm (0.3 x 2.4 inches).
I have a cavity wall (see picture).
My colleague warns me not to use those for fastening.
He mentioned something about threaded rods or chemical anchors.

Could someone please give me advice on how to properly and cost-effectively fix the wall profile to the wall?
I have no idea about the right length, thickness, etc.

Best regards from Hörstel
sandokano
M
Müllerin
12 Apr 2019 23:33
Our porch roof is also secured with injection anchors that go through the brick veneer all the way into the concrete slab.
We didn’t want to drill into the patio roof; it is supported by two posts and is simply "leaned against" and sealed.

Length and thickness? Well, that depends on the structural design... no idea.
Why save money in areas where you have no idea how to do it properly?
S
sandokano
13 Apr 2019 00:07

No idea.
Why save money in areas where you don’t know how to do it right?

Why do you respond if you also have no idea? I can do without those clever answers that just ask more questions!

I often had no idea but always researched online and did it myself. There are people who know their stuff and are happy to share their knowledge in forums like this. I hope to still get some useful tips.

Best regards, sandokano
K
kbt09
13 Apr 2019 09:14
Well, you buy something before knowing how to install it. Not the usual order, at least for items costing more than 10 euros.

What does the supplier of your patio roof recommend? There should be some structural specifications included (snow load, etc.). It would probably be best to start with those recommendations.
N
nordanney
13 Apr 2019 10:38
I once had a sunshade of nearly 20 square meters (215 square feet) that needed to be attached on the garden side to stainless steel posts and on the wall side to masonry similar to yours.

Regardless of the fact that the manufacturer should also provide guidance on the fixing method, I can tell you that at the time I was considering both chemical anchors and screwed scaffold anchors. The important thing is that the fixing must go through the insulation and be secured directly into the masonry or ceiling, as brick cladding is not suitable for fastening.

In the end, I chose the (more affordable) scaffold anchors. Despite heavy wind loads, they held up without any problems during strong storms.
S
sandokano
15 Apr 2019 15:48
Hello

thank you very much for the tips.

I contacted the seller, and this was the response today.
"The screws included, which you receive from us, are sufficient to fix the wall profile."

I am still quite skeptical whether this is really true. Are such short screws really enough? *scratching head*
Hmm... maybe they really are enough? Additionally, there are 3 posts...
The parts (see delivery picture) will only be delivered next week.

Text document with patio roof parts, article numbers, and quantities


"Attention! The snow load should not exceed 80 kg/m² (16.4 lbs/ft²) (100 kg/m² (20.5 lbs/ft²) without safety margin). Therefore, always ensure that the snow depth on your roof does not exceed 40 cm (16 inches)."

Garden lounge under black pergola with white cushions on rattan corner sofa in courtyard.


Best regards, sandokano