Can anyone advise on the following please
I'm link detached and i'm extending my flat garage roof forward
Plan is to bolt a 120 x 47 C16 joist to each wall and then use joist hangers at 400mm centres
The photo attached shows my house and the blue lines show the approx position of the joist to marry up with the existing horizontal. This joist will be approx 2.8m in length
So my questions are :
...and at 3m30secs the guy presents a table showing load weightings for the M8 that can take 3.0kN (=300KG force)
Considering the roof will only be walked on for maintenance, would a number of these be suitable or best go for a larger bolt ?
Its worth mentioning also that my bricks are London Heathers if that makes any difference
And my final question :
Many thanks in advance
I'm link detached and i'm extending my flat garage roof forward
Plan is to bolt a 120 x 47 C16 joist to each wall and then use joist hangers at 400mm centres
The photo attached shows my house and the blue lines show the approx position of the joist to marry up with the existing horizontal. This joist will be approx 2.8m in length
So my questions are :
- Is there a rule of thumb for the number of bolts required per Xm ?
- What type of bolts are best (throughbolts or rawlbolts)
- Is there a particular size of bolt that i should be looking to use ?
...and at 3m30secs the guy presents a table showing load weightings for the M8 that can take 3.0kN (=300KG force)
Considering the roof will only be walked on for maintenance, would a number of these be suitable or best go for a larger bolt ?
Its worth mentioning also that my bricks are London Heathers if that makes any difference
And my final question :
- If i should equally position the bolts, am i safe to drill above the door as i'm guessing that i will hit most likely a concrete lintel or best to avoid if possible ?
Many thanks in advance