Garage/Shed/Workshop Revovation Project

[danny dorito]

So, we've not long moved into the new house which has an old freestanding Prefab Garage. It’s not much use as a garage any more as access to the rear of the property is a little restricted nowadays but the 4 walls are too good to waste. As you can see from the photos, the roof needs replacing, its currently Plywood covered with felt which is covered with a tarpaulin, and it still leaks. Once it dries up a little I will be putting a new roof on, I will probably just replace the whole lot with like for like, the roof is slightly sloped to the rear of the building so will put a length of guttering on the rear.


I would eventually like to insulate it a bit if possible but there is a decent amount of damp which seems to be seeping through at the bottom of the walls where they touch the concrete floor. I’m wondering if it would help If i put down a decent sized sloping bed of mortar around the base to allow the rain water to roll off rather that sit on the flat slab of concrete that wall panels sit on and perhaps water proof the mortar? Does anyone have any suggestions for this?


I will also be looking to modernise the electrics for the building as it looks old and probably dangerous. Let me know your thoughts and opinions. I will be doing most of the work myself to keep costs down, except for the sparky work.

 

[frank horton]

best change the roof to insulated PVC covered profile sheets.....put in the odd clear one for daylight......there are a lot of used ones on the "evil bay", that way it'll last forever.......also looks a good candidate for an extension.....!!!!!!
if the floor is wet from roof leaks hopefully with ventilation and a new roof it'll go.....might take a while tho.........good luck

 

[Ton-up]

I did mine with a Firestone rubber kit off ebay. Really simple to do, 25 yr guarantee too.

 

[danny dorito]

Hi Guys

The floor is not wet because of the leaks, there is an old bin under the leak to catch the drips. The water is seeping under the walls where the prefab concrete slats touch the concrete slab, this is where Need to stop th water ingress.

Did you apply the rubber yourself? What material is under the rubber?

 

[bricol]

Normal recommendation is a good fillet of cement INSIDE the garage to stop leaks under the walls. I still got them in places, so mine has fillets in places outside, as well as good doses of mastic. It might be leaks down the joins between panels?

 

[danny dorito]

It could well be running down the panels, had not thought of this. I was thinking a fillet outside so the water could run off maybe? What kind of mastic are you talking about?

 

[dobbslc]

I used something like this on my prefab garage when the concrete fillet started leaking round the base of the panels.

 

[danny dorito]

Did you use this on the outside or inside?

 

[dobbslc]

On the inside, I tried it on the outside but it makes a bit of a mess!

 

[danny dorito]

So, after the deluge of rain we had yesteday, the shed flooded. The water ran in from the front underneath the wooden front which had all rotted away. I have ran a filet of mortar around the base of the shed to stop the ingree of water under the walls but there really was nothing I could do to stop the water coming in from the front. The drains could not cope with the amount of rain we had and the water level was above the drain, it didnt help with next doors guttering being full of grass and weeds to we ended up with all the water off their house too. I was thinking of putting a course of bricks across the bottom of the front opening to help stop any future flash floods but this might reduce the height oof the doorway somewhat. The water level was only half an inch so it does not need to be too high. I dont really wat to use wood to start the door frame at the bottom as this will just rot away in a few years too. Any suggestions?

 

[eLuSiVeMiTe]

Give the water somewhere else to go.
Aco drains across the front of the door?