O.k. so have begun converting loft and have had builders in to put the joists in and installl some velux- for the next phase will be insulating and dry lining ourselves.
A few words of wisdom would be appreciated on the following:
As is good practice now days will be installing a VCL on the warm side of the insullation which is fine for the sloped part of the roof and down the stub walls- the problem is where it becomes horizontal and sealing it at the eaves level to the external wall.
Also the builders I had in advise it will be difficult to get over fascia vent or pack it out to get a vent gap at the eaves without sending the eave tile out of kilter with the gutter etc.
I have seen some products on the web for venting between the lap of the roofing felt . Sounds good in theory and having put my hand in the gap they would go can feel a good flow of air - any one had experience of using these and if they do what they say on the tin.
Also what is max thickness of insulation below rafters that can in practice be fixed through- I would rather board out 120mm of kinspan type under rafters rather than chopping bits up to go between the rafter. but 120mm plus battens plus plaster board sounds a lot to fix through so perhaps no options here.
Thanks
A few words of wisdom would be appreciated on the following:
As is good practice now days will be installing a VCL on the warm side of the insullation which is fine for the sloped part of the roof and down the stub walls- the problem is where it becomes horizontal and sealing it at the eaves level to the external wall.
Also the builders I had in advise it will be difficult to get over fascia vent or pack it out to get a vent gap at the eaves without sending the eave tile out of kilter with the gutter etc.
I have seen some products on the web for venting between the lap of the roofing felt . Sounds good in theory and having put my hand in the gap they would go can feel a good flow of air - any one had experience of using these and if they do what they say on the tin.
Also what is max thickness of insulation below rafters that can in practice be fixed through- I would rather board out 120mm of kinspan type under rafters rather than chopping bits up to go between the rafter. but 120mm plus battens plus plaster board sounds a lot to fix through so perhaps no options here.
Thanks