Fixing a wall plate

[Arnold9801]

Next week my brickie will be bedding the 4”x2” wall plate down on our new build. I’ll leave it a few days for the mortar to harden and then go about fixing it to the underlying concrete blocks. I like the “easy drive” countersunk bolts, but was wondering if it’s best to get 6” or 4”?

 If I use 4” then the depth of the mortar bed will mean there will be less than 2” of thread engaging the underlying concrete blocks, which is why I felt 6”  maybe be best? I know it will have additional straps fitting it as well.

 

Any advice please?

 

Arnold9801

[nod]

You don’t need either 

Use L shaped wall straps Plug and screw to the face of your block work Then drive a couple of 50 mil screws into the top of the wall plate  Th

[Conor]

Steel straps as above is the only way to do it. You can't fix in to the top course as the course itself can be pulled off in high winds, that's why you strap and fix in several courses down.

[Oz07]

Some temporary 4 inch nails down into the perps or blocks if soft enough help to stop it from moving while framing the roof. Then straps as above. 

[James94]

We used some of these, not sure what's best length but wont harm if a little longer, just hammer them home once mortar has set (maybe a few blocks on top of plate till set). we also used wall plate straps too.

Regards  James

https://www.screwfix.com/p/easyfix-frame-fixings-8-x-100mm-10-pack/19356

[nod]

Just to add When you do any step joints Make sure at least three trusses land on any pieces

[Russell griffiths]

You should really have the hold down straps specified in your roof design, it should show length of strap and distance apart, it would also detail any restraint straps for other roofing members. 

 

Should be on the roof drawing that went to building control.