dust sheet in loft

[gpholman]

Hi

Part of my roof has no felt under the tiles which means a lot of dust and dirt comes in. To help keep things stored up there a bit cleaner I've tacked polythene sheeting (http://www.wickes.co.uk/Polythene-Vapour-Barrier/invt/153230) onto the underside of the eaves where felt is missing from the apex down to approx 1 foot above the level of the loft floor.

Is there any reason this is inadvisable (e.g. contravening building regs, fire hazard etc.)?

 

[Chri5]

Possible wet issues due to condensation and if that happens where would the water run off too ?

 

[gpholman]

The sheet is only on one portion of the roof (about 25%) and has a big gap at the bottom so hopefully condensation won't be an issue - I could put some breathing holes in it as well and the loft space seems very dry generally all year round.