Builders advice needed

[andrew]

I was wondering if anyone out there could help me. I'm about to fit the roof to my garage this weekend, but am a bit stuck on how i'm going to do it.

I wanted to use these;
https://www.screwfix.com/app/sfd/cat/pro.jsp?cId=101228&ts=87867&id=59983#

but don't know how well they will bolt to medium density air blocks. I like the look of them because i think they would be a whole lot easier than cutting out the blocks so i can mortar the roof beams in place. Will these and standard wall plugs be fine or do i have to use special plugs seeing as the blocks are medium density.

Thanks
Andrew

[Walloper]

Ask the supplier who sold the hangers.
Sorted.
____________________
W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair

[andrew]

Well they're on the internet and i don't reckon the muppets on the phone will have a clue what i'm on about.

[daz|n00by]

Just use a standard 2" 10 screw and fix them from the top down wards on to the top coarse of block work, they will hold fine as they are designed so that the hanger part on the top cant close in due to the tight fit of the joist.
In other words when the joist is pushed into the joist hanger they cant go anywhere apart from side to side but this is stopped by either the joist braces you will be putting in or the roofing board attached to each joist on top.
____________________
"Its Better To Burn Out Than Fade Away!!!!!!" "Lifes a bitch and then you Die"
"I`m a tool, one with just enough intelligence to know it, just enough spirit to resent it...but not enough backbone to do anything about it. " Siggi 2006 pure class.

[The Old Geeza]

[daz|n00by]

well like i always say about 2" screws

IT MAY ONLY BE 2 " BUT I HAVE 13 STONE TO PUSH IT IN WITH;
____________________
"Its Better To Burn Out Than Fade Away!!!!!!" "Lifes a bitch and then you Die"
"I`m a tool, one with just enough intelligence to know it, just enough spirit to resent it...but not enough backbone to do anything about it. " Siggi 2006 pure class.

[The Old Geeza]

[MikeH]

[andrew]

[MikeH]

OK, your need a timber sitting on top of the wall, this can be fixed simply by using L shaped straps down the inside wall about every couple of meters nailed into the top of the timber and screwed and plugged into the wall.

Then hang the hangers off this timber again nailing into the timber and sit the joists into it again nailing them to the hangers.
____________________
Busa Junkie

[MikeH]

excuse amatuer drawing
____________________
Busa Junkie

[Scouse]

Whats wrong with just sitting the joists on top of your top course and bricking up the space in between them to hold them in place?

[andrew]

[Cillit-BANG]

Has your building control officer not given you any adivice?

To be perfectly honest, I think you may be wise getting a professional builder to spare an hour of his time to get you on the right track.

There really is a right way and wrong way to do it. Get it wrong and your whole roof will indeed risk being blown off. It needs to be tied into the wall using L-straps running down several courses. Fixing it just to the top row will offer very little stability.

I presume your not fitting any electrics? If you are, it is now a requirement to have the rest of the building's supply checked before any work can commence. In which case you may want to make sure your new garage is being build to the required standard before they come to inspect the wiring, as chances are it will be the same building control officer that checks both aspects.

Building regs are there for a reason, not just to put off potential diy projects

And for what it's worth, 5x50's are the new 2"10's The screw choice of champions.

[andrew]

[Cillit-BANG]

[andrew]

Brilliant stuff.

I appreciate your comments, to be honest i hadn't put that much thought into the roof and was really searching for the best way of doing it.

I think i'm going to go the way you suggested and use the brackets and mount them under a timber plate. Then using the l-pieces to secure it to the brickwork.

Thanks for your help, i'll no doubt be back on here when i get stuck.

[Scouse]