How to attach to house?

[vallefarm]

I have a different approach. Give me your brother in law’s phone, I‘ll call him.

 

[rv7charlie]

I think the term isn't 'log'; it's 'lag'. Which is the wrong screw for cinder block. Toggle bolt or 'Molly' bolts would be my choices. And the screws at the bottom are needed for side-shear loads, and they will be carrying some percentage of vertical shear, as well.

 

[chim]

I think this is something similar to what the OP was referring to - "12" long "log screws". Threaded 2-3 inches on the tip, rest is shaft.":

https://www.lowes.com/pd/Big-Timber-Hex-Head-Black-Log-Screws-25-Pack/7597203

 

[t1kilo]

These are structural blocks. The corners of the house, as I understand, were backfilled with concrete. These aren't near there so these "should" be hollow blocks.

No wood behind. What you see (without recalling measurements) are 4x6 solid "whitewood" (I think they call it). I'm doubting he used any type of adhesive between the wood and blocks.... I'm guessing he drilled into the blocks.

Knowing him, it's possible he "simply" drilled the screw, scored the blocks and then drilled hole into block (as opposed to inserting an anchor) Only way for me to know is to ask him or take apart and look. He's not returned anyone's calls/texts, anything.... his daughter is in wheelchair and isn't a good intermediary to go between.

Personally, this strikes me as an unnecessary "busy project" that the wife created as she's prone to creating busy projects. If it was screwed into wood or sunk into ground, I'd not mind as much but I really don't care to grind down portions of the blocks because you can't undo that.

(turns out yes.... she CAN greatly hide that by splattering some concrete on there and doing her magic..... she's pretty artistic. That doesn't change my mind that I'd rather not grind on house with a diamond wheel)

If the blocks are indeed hollow, these would work well. I’ve used them for supporting large televisions on 1/2” Sheetrock walls.

SNAPTOGGLE® Heavy-Duty Toggle Bolt — Stainless Steel – TOGGLER

They support up to 802 pounds in concrete and over 200 pounds with 1/2” drywall.

 

[LittleBittyBigJohn]

I would not use a wedge style anchor. If it was in the middle of a big slab that would be a different story. If I had to screw into masonry I would use something like this.

 

[Lavender Valley]

Several years ago, brother in law came. He added an awning above the garage door. Wife wants to duplicate it on the other side of the house.

Question is.... we can't see how he attached things. He didn't have a nervous breakdown.... but he's crawled into a hole and won't 'talk to the world' so I can't simply ask him.

As I recall, (and we have more) those are 12" long "log screws". Threaded 2-3 inches on the tip, rest is shaft. I can't believe he screwed those into the block itself.... is there any special anchor that you might use? Need any thoughts of epoxy or just tighten them down?

We've got the parts (that you see in the picture) already cut/stained, ready to mount. Already have the crossboards.... so this is essentially ready to go but for not knowing what he used and how he might have done it.

I'm always nervous drilling into blocks. Frankly, I would have rather NOT done it just so I can be 100% sure nothing is going to crack on me. Also, it's split face block. Wife seems to forget we won't be able to get a flat surface unless we take a grinder to it (like was done before). Again, I'm not keen on that but, it's been done and what do you say!!!

This "brow" is only two, maybe two & a half feet deep. It's just to help keep some water from landing closer to the house & splashing up on things. Thankfully, nobody will be walking on it!




View attachment 4307850

The fixing at the top is under tension ( pulling away)and fixed into wood; the bottom is under compression (pushing into the wall), so the fixing requirement is minimal.

 

[Gord Baker]

Anchor bolts like these should do the trick.

View attachment 4307861

Not in Hollow Concrete Blocks.

 

[Rockbadchild]

Not in Hollow Concrete Blocks.

from post #1 it wasn't obvious there where hollow, that info came later on....

 

[Elviscaretaker]

Several years ago, brother in law came. He added an awning above the garage door. Wife wants to duplicate it on the other side of the house.

Question is.... we can't see how he attached things. He didn't have a nervous breakdown.... but he's crawled into a hole and won't 'talk to the world' so I can't simply ask him.

As I recall, (and we have more) those are 12" long "log screws". Threaded 2-3 inches on the tip, rest is shaft. I can't believe he screwed those into the block itself.... is there any special anchor that you might use? Need any thoughts of epoxy or just tighten them down?

We've got the parts (that you see in the picture) already cut/stained, ready to mount. Already have the crossboards.... so this is essentially ready to go but for not knowing what he used and how he might have done it.

I'm always nervous drilling into blocks. Frankly, I would have rather NOT done it just so I can be 100% sure nothing is going to crack on me. Also, it's split face block. Wife seems to forget we won't be able to get a flat surface unless we take a grinder to it (like was done before). Again, I'm not keen on that but, it's been done and what do you say!!!

This "brow" is only two, maybe two & a half feet deep. It's just to help keep some water from landing closer to the house & splashing up on things. Thankfully, nobody will be walking on it!




View attachment 4307850

It's hard to know for sure with the angle of the photo but.... The top is most likely mounted into the wood, the lower would appear to be mounted in to the solid ends of the block. In those cases a "ledger lock" would be used on top and for the lower a solid type "tapcon" anchor would be fine. I'm more curious to know if he used any joinery (or back screwed and the black bolts are for looks) on the support angles or if the screws there are at an angle. Not clear to me in the photo. Assuming you want to match the look, they do sell black ledger locks and black tapcons that would do it. More important would be when drilling into the block to use the proper tools to not eat the bit or blow the block apart. A bunch of different brands of fasteners out there that'll work. I wouldn't use an expansion bolt on most block, JMO ...

 

[CliffordK]

I'd take a hammer and tap on that top cap. You should be able to tell if it is a 6x6, 6x8, something like that. Perhaps you can see the inside from in the attic, or look at the end of the house. Anyway, that may give you a lot of support depending on how well it is attached to the wall.

Then, are those hollow blocks? Or perhaps hollow blocks filled with rebar and concrete?

If hollow with a concrete filler, then you can find any good concrete anchor and drill deep enough to get into it.

I'm trying to envision the leverage. Most of the pulling out would be happening at the top, and as mentioned, just a vertical shear force further down on the support.