Options for sloping garage flat roof length ways

[benjiman]

Hi All,

I have a garage flat roof that has badly sloped. Garage is attached to the side of the house.

Length is 8.5 meters, width is 2.2m.

Currently it is slopped using the width of the garage and into a gulley which then slopes towards the back of the garage and out into a drainpipe.

I would like to change it so it slopes length ways.

I plan on taking off the existing felt roof and removing the firrings that are currently in place.

I was looking around for firrings that will be 100mm to 0 for an 8-9 meter length, however I have been unable to find them in that length. Max I found was 5 meters.

What are my options to slope this roof length ways? Are firrings the best option? Can I get custom made firrings?

Thanks

 

[Xenon]

You can get firings cut to size.

 

[benjiman]

Great. Thanks mate.