Water ingress - Drainage

[davecouch]

We have always dreamed of retirement and with this in mind we recently purchased a brand new Park Home. The home is sited on a concrete base with a brick skirt, patio and steps, this was all included in the purchase price.

We recently became aware of large amounts of rainwater ingress on the concrete base(slab) under the park home. this concerned us deeply as as far as we are aware, NO WATER should be present under the home.

We had an independent survey carried out on the base, the concrete base should be genearlly level allowing for natural drainage. It would appear that the base is allowing rainwater to ingress on one side of the slab and then run from right to left causing a ponding situation on the concrete slab under the park home and once on the base it has no where to go and is lying static. This in itself is causing the chassis of the park home to rust and the timbers are very moist. The surveyor also noted that the brick skirt and patio was also layed wrongly.

The fault here clearly lies with the concrete base in the first instance and to correct this situtation the park home would have to be removed in order to rectify the base. This would be a very costly excercise.

It has been suggested that the problem with the water ingress could be resolved by rebuilding the brick skirt and associated patio, installing additional ventilation and the installation of a water bar gulley in the concrete slab to take any further rainwater away.

Would be grateful for your comments in particular with regards to the water bar.

[lutonlagerlout]

i take it ,that it is runoff water and not driving rain that is getting under the Park home?
i would have thought a linear drain on the offending sides would have worked better ,linear drains are detailed elsewhere on the main site
cheers LLL

[seanandruby]

Trying to get a picture in my mind what you mean about the timbers being moist, is that timbers it is sitting on. can it be jacked up a little to get a membrane under chassis? is the bottom of the wall sealed, is the water being blown through anywhere? how about a photo, or two.

[matt h]

cut a channel in the base to direct the water away, or find some way of sealing the top side. The skirt shouldnt be able to let water through so maybe that needs rebuilding? Increased ventilation will help with drying out. If there is too much water in one place, create a drain off channel at the very least, as this will stop the ponding