Regulations say I must insulate over the wallplate and yet maintain a 50mm roof perimeter ventilation gap. But pushing loft insulations over the wallplate will likely obstruct the gap between roof and wallplate. Anyone who has suffered loft condensation will understand why this is an issue.
One solution is to fit so called rafter baffles or eaves trays. They preserve the gap between roof and ceiling when pushing insulation into the eaves. Here's one I looked at earlier.
http://www.screwfix.com/p/refurbishment-eaves-vents-pack-of-20/22511
And here's where they fit:
Here's a picture of one:
and some in place:
So what's my problem?
Well, I'm dead tight and these things are pretty nasty. Think of the type of plastic you get with blister packs - you know the sort : ~0.25mm thick, vacuum formed rubbish you throw in your bin every day. These things are worse. We're talking @5g weight for a piece of plastic over a foot square. And for that they want ~ £1.50. On my roof that's a bill of £200. Call me daft but I resent spending £200 on the kind of plastic I throw away every day.
So to my question: do any of you guys have a favourite substitute for these that you've used / would use and would mind sharing with me.
Yours in hope.
One solution is to fit so called rafter baffles or eaves trays. They preserve the gap between roof and ceiling when pushing insulation into the eaves. Here's one I looked at earlier.
http://www.screwfix.com/p/refurbishment-eaves-vents-pack-of-20/22511
And here's where they fit:
Here's a picture of one:
and some in place:
So what's my problem?
Well, I'm dead tight and these things are pretty nasty. Think of the type of plastic you get with blister packs - you know the sort : ~0.25mm thick, vacuum formed rubbish you throw in your bin every day. These things are worse. We're talking @5g weight for a piece of plastic over a foot square. And for that they want ~ £1.50. On my roof that's a bill of £200. Call me daft but I resent spending £200 on the kind of plastic I throw away every day.
So to my question: do any of you guys have a favourite substitute for these that you've used / would use and would mind sharing with me.
Yours in hope.