Garage floor 'again'

[RMS]

Hi all

Started converting my garage, floor first. keeping insulated garage door. Laid dpm on floor. Plenty of it so overlapped join about 2 meters.

Next job will be fixing 4 x 2 along right hand wall with joist hangers, then fit joists. Can't do 6 x 2 as not enough space. They will be packed level use packers on existing concrete floor glued in place. Not going to fix the joists to the left wall as this is an external wall (single brick) don't want to drill through dpm. noggings will be fitted at this end with packers from the floor. The existing floor slopes and is not level.

That's an external door at the end next to the garage door, this will be lifts up to suit the new floor level.

Appreciate people's thoughts on this and if I have missed anything or could do it better.

Cheers

Untitled

• RMS
• 19 Oct 2013
• 1

Untitled

• RMS
• 19 Oct 2013
• 1

 

[foxhole]

If the dpm is not large enough to cover in one piece then joint needs to be folded twice to ensure protection.
No need for joist hangers , you can build floating joist frame on top of dpm and then wall lining from the floor with insulation behind.

 

[RMS]

Can you explain what you mean by folding the dpm twice for the joins.

I take it you mean build the floating floor then sit the frame for the walls on the floor fixed to it and the ceiling joists.

 

[foxhole]

Simply overlapping a sheet does not prevent moisture ingress.
This pic shows how to fold, then tape to maintain seal.
http://www.kalzip.com/img/foldable/double_standing_seam.gif

Yes floating floor is used to support walls and is tied in to ceiling joists.