Tuesday, October 10, 2006
Going Through The Roof (Water)
I didn’t post during the last couple of days, because the number of leaks in the ceiling of the computer room quickly increased. The problem is that this room has (or in the mean time had) a false ceiling, so there was no way to know how serious the problem was, how it was evolving, how many leaks we had and where the water was coming from exactly. So I spent the weekend on the roof.
It is a flat roof, covered with tarmac with a number of ventilation shafts and chimneys in different sizes. On top of the tarmac there’s a layer of pebbles to prevent it from heating up too much so it won’t start to bulge or tear apart. But that layer also held a load of mud and moss, and we suspected that was what causes the water to remain on the roof. The moss might also be responsible for making cracks in the tarmac.
On Saturday, we shovelled and sifted approximately five tonnes of pebbles and mud and separated it into two tonnes of pebbles and three tonnes of mud and moss. It was by far the heaviest and dirtiest chore I did so far on the house (geddit: on the house?) It was cold and wet up there too, with the occasional shower, but by the end of the day the sun came out. Despite a reduction in man-power (or rather woman-power) in the afternoon – my wife really had to go see a friend for an hour and didn’t make it back to the roof until four hours later – the roof was cleared and cleaned by the early evening.
The next morning, the neighbours nearly choked on their cornflakes because of the ruckus we were making in bed (reading comics and building pillow forts). Then we went off to the polling station to cast our democratic vote and smite the evil fascists in the deep fiery furnaces of hell. That’s right: we win! They loose! Democracy and tolerance have prevailed! We haven’t been standing in the pouring rain and hail for nothing on that concert! But anyway, back to the roof…
Things were a lot easier and much less back-breaking on Sunday. I moved the pebbles to the side of the roof, gave it another good scrubbing, and another one. I also removed the tiles of the false ceiling in the computer room, because they were bloated with water anyway and the chances of them returning to their original state were nil. I’d also grown worried that at some stage they might simply drop off and onto my head as I write my posts. Imagine, the first blogger killed in the line of duty. By a water-soggy bloated ceiling tile.
This allowed me to see that the leaks were not situated right above my computer and measure up the probable location of the hole(s) in the tarmac. The culprit proved to be a ventilation pipe – you know, those black plastic mushrooms you find on flat roofs. I peeled away the old sealing stuff and gave it a good scrub. Then I waited until my wife went horse-riding and borrowed her hair-dryer to dry the tarmac. First I treated the area with a primer, then after 90 minutes of drying I applied the reparation mastic which I reinforced with a layer of reinforcement mesh. It still needs a second layer, but it was raining yesterday evening and anyway I was home too late from work and shopping. But so far, so good: it seems to hold.
So now I can put my computer back, in a room with half a false ceiling and strange, smelly vegetal life forms on the wet spots. If only our bedroom would be finished already!