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Hi there,
I am building a pergola and I have 2 options to attach a waling plate:
- through facia into rafters
- directory to the brick wall
i think it will be easier to do it into the brick, but are there any downsides?
any recommendations please?
Welcome to the Bunnings Workshop community @Alexey. It's terrific to have you join us, and many thanks for your question about attaching a pergola.
The best option would be to run through the fascia and into the structural rafters. Presuming that's a single brick veneer, it's not capable of being used as a structural mounting point. Brick veneer has significant compression resistance, but not sheer, so items like pergolas or decks can not be mounted off it.
If the pergolas roofline is to be above your existing, then you can also use Roof Extenda MKII Bracket With Black Weather Seal Package to connect to the rafters through the roof.
If in doubt, I'd recommend consulting with an engineer or builder regarding appropriate connection methods.
Please let me know if you have any questions.
Mitchell
Sorry, I would normally mention that, but didn't @Alexey. Installing posts next to the wall is certainly a great solution, and you're right that if it avoids needing a tradesperson all the better.
Mitchell
Thank you Mitchell,
it isn’t as straight forward as I will have to have quite a span for beams on the left side as I don’t want to install the post in front of the entrance. I guess I can attach pergola’s beams to the alfresco’s beam? What is your take on that?
thank you.
Alex
Hello @Alexey
I would advise against it as the alfresco beam has been installed to carry a certain amount of weight and to withstand a certain amount of force. Changing the parameters of the load and weight might have unintended consequences on your roofing frame. I suggest either shortening the beams or adding an extra post in the middle along with a support beam going across.
If you need further assistance, please let us know.
Eric
Hello @Alexey
The only span tables I can suggest are those from our timber supplier Hyne. The span tables from Hyne are the ones we often recommend looking at.
Here is the link for the span tables: Hyne Span Tables
If you need further assistance, please let us know.
Eric
Hi @Alexey,
There are some beam span tables from our supplier Woodhouse. However, large overhangs are not acceptable. I'd suggest you need to put your posts at the end of the beam. So one post is next to the existing and the other on the side of the door closest to the alfresco beam. You can then use large beams to span the distance between the two sets of posts, or include mid posts to halve the span.
Mitchell
