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Posted: Sun Feb 12, 2012 7:25 pm
by joydivision
Quick question.
I have a small, single skin/piers, detached brick shed to build which is going to be storage for a motorcycle.
I will def get the job, and I doubt I will recieve any proper drawings, more the case of a rough sketch with some rough dimensions.
I will be building it of a strip footing, and it will have a concrete base.
What option do I have for keeping the access easy for the motorbike as they dont reall want an external ramp.
I obviously dont want to comprimise on any damp issues, so want to keep the dpc at least the 150mm above ground level.
If the floor was put in lower than dpc, the membrane would be visible on the inside as it would have to rise up to sit on the dpc.
Any thoughts?
Cheers
JD
Posted: Sun Feb 12, 2012 8:39 pm
by lutonlagerlout
why do you need dpm in it anyway?
my garage was built in 1922 and has no sign of damp and the floor is 6 inches below dpc
LLL
Posted: Sun Feb 12, 2012 9:15 pm
by local patios and driveway
Surely without dpm the shed could sweat. Not good for the bike inside
Posted: Sun Feb 12, 2012 9:57 pm
by lutonlagerlout
well anywhere where there is a potential fuel leak should be 150 mm below FFL and falling out
single skin there may be problems with condesation
I had a mates gpz in my garage for 7 years and it suffered no ill effects apart from cement dust
LLL 
Posted: Tue Feb 14, 2012 6:16 pm
by joydivision
Surley in this day and age there should be a dpm in any substantial structure. Dont fancy taking the risk by not putting one in.
I know what your saying about old property not always having one and a lot of the time it works fine. But I bet there are loads of older properties with problems also.
Would there be any big issues with putting the floor in lower than dpc level, with a dpm, but not linking it in to the dpc? To do away with the problem of seeing the dpm rising up the wall.
Cheers
JD
Posted: Tue Feb 14, 2012 6:46 pm
by Carberry
joydivision wrote:Surley in this day and age there should be a dpm in any substantial structure. Dont fancy taking the risk by not putting one in.
I know what your saying about old property not always having one and a lot of the time it works fine. But I bet there are loads of older properties with problems also.
Would there be any big issues with putting the floor in lower than dpc level, with a dpm, but not linking it in to the dpc? To do away with the problem of seeing the dpm rising up the wall.
Cheers
JD
dpc is there to prevent rising damp which some people think is a myth.
Posted: Tue Feb 14, 2012 9:32 pm
by lutonlagerlout
it seems somewhat odd they do not want a ramp ,as i have done a few for MB enthusiasts with brick outhouses?
a ramp with an aco at the cill level makes sense
LLL
Posted: Tue Feb 14, 2012 9:36 pm
by seanandruby
you'll only be putting it beneath the concret and up the sides to ffl surely. You won't need to bring it above the ffl. ???
Posted: Wed Feb 15, 2012 7:05 pm
by joydivision
Yeah, thats the way I want to do it LLL. Keeps everything simple, and you know it works. I will work on it!
Sean, yeah only to ffl, but that would mean seeing the membrane rise up 2 courses on the inside. I know its only a brick shed, but just thinking of other solutions.
Cheers
JD
Posted: Wed Feb 15, 2012 8:30 pm
by lutonlagerlout
need a slight fall out for any fuel spillages,also maybe a big anchor point for chains
LLL
Posted: Wed Feb 15, 2012 10:00 pm
by seanandruby
joydivision wrote:Yeah, thats the way I want to do it LLL. Keeps everything simple, and you know it works. I will work on it!
Sean, yeah only to ffl, but that would mean seeing the membrane rise up 2 courses on the inside. I know its only a brick shed, but just thinking of other solutions.
Cheers
JD
don't understand why it will be visible ???