Had someone round to day to add insulation to the existing. They
turned up, swore about the guy who quoted originally and left. As I
pointed out, if it was easy, I'd have done it myself....

The roof has a 17.5 degree pitch, so there's basically enough space to
crawl down the middle - it's 5m wide, so if you do the math, you'll
find that's a a whopping 75cm clearance in the centre. Any work close
to the eaves requires lying flat and inching along the 40cm span
between rafters. Falling through the ceiling isn't an issue - getting
stuck is! My wife says the guy who showed up was pretty tall

There is currently about 75mm of blown insulation. I can't get too
close to the eaves, but I could push the blown stuff to the edges (and
therefore increase the height) and then lay new insulation in the
central space - starting at the ends, and retreating over boards as I
go. I'll probably use the cheapest glass-wool style insulation and aim
to go 200mm deep. Any more than that and I reckon ventilation will be
somewhat limited.... The area to cover is about 50sqm, so I guess by
the time I've shoved the existing blown insulation to the edges, and
left a ventiliation gap, I only really need to cover 30sqm.

Anyone got any better ideas/tips?

On Dec 10, 3:46*pm, Nutkey wrote:
Had someone round to day to add insulation to the existing. They
turned up, swore about the guy who quoted originally and left. As I
pointed out, if it was easy, I'd have done it myself....

The roof has a 17.5 degree pitch, so there's basically enough space to
crawl down the middle - it's 5m wide, so if you do the math, you'll
find that's a a whopping 75cm clearance in the centre. *Any work close
to the eaves requires lying flat and inching along the 40cm span
between rafters. Falling through the ceiling isn't an issue - getting
stuck is! My wife says the guy who showed up was pretty tall

There is currently about 75mm of blown insulation. I can't get too
close to the eaves, but I could push the blown stuff to the edges (and
therefore increase the height) and then lay new insulation in the
central space - starting at the ends, and retreating over boards as I
go. I'll probably use the cheapest glass-wool style insulation and aim
to go 200mm deep. Any more than that and I reckon ventilation will be
somewhat limited.... The area to cover is about 50sqm, so I guess by
the time I've shoved the existing blown insulation to the edges, and
left a ventiliation gap, I only really need to cover 30sqm.

Anyone got any better ideas/tips?


What about using slabs of Celotex or the like. You'd get more
insulation for a thinner layer and they'ed be easy to push into the
eaves. You could lay them on top of the joists leaving the blown fill
between them.

Robert