Flat roof leak

[trevorbayliss]

Got the plaster board down today and have a full beam rotted and spliced on the parapet edge. Total bodge job in the past. Beams not even screwed together. Also this section fully rotted. The rest of the roof is in floorboards and look good.

So its going to be a big job to put a whole new roof on there with insulation and firings and the fibreglass. would be so much easier if i could just put in the insulation between the joists. I also have a garage next to the kitchen and so the flat roof doesn't all need to be insulated. So my levels are going to be very different here as well.

 

[chappers]

in that case you will need to ventilate above the insulation from front to back

 

[trevorbayliss]

Spoke to building control today about a lintel and so i asked him about this roof.

I can do what i was thinking, in that i insulate from underneath (in the roof joists), but when i put on the furrings i will cross batten these with roof lats. Then board out and fibreglass. This latted area will allow airflow. Very simple and makes my life easier as i do not have to worry about creating different levelled roofs. The roof will be all the same level and sloping in the one direction.

 

[chappers]

but you will need to ventilate front and back or side to side

 

[trevorbayliss]

Yes, just drill some holes in the soffit.