When Would You Use 1.5m Wide Roof Membrane Rather Than 1m?

[Monkeypaw]

I will be getting my house roof retiled soon ( a standard apex semi-detached) and will be using a vapour permeable breathable membrane.
They come in 50m rolls and either 1m or 1.5m widths. I will be using interlocking roof tiles.

The 1.5m rolls work out cheaper, but don't seem to be as easy to use as the 1m . Does anybody know which roofers tend to choose and why? Thanks.

 

[upstairscharly]

1.5m. Less wastage, more coverage.

 

[Monkeypaw]

Thanks for the reply. But then do all proper roofers use 1.5 m rolls on main house roofs rather than 1 m rolls?

Are the 1m rolls only for use for under the tiles on top of a bay windows?

There seems to be more 1m rolls available than there are 1.5m rolls.

 

[datarebal]

You can cover something in faster with 1.5 mtr, I never buy 1mtr.
If your arms are short or if it's very windy then it can be tricky

 

[catlad]

DIY 1 mtr roll.

 

[Nige F]

You can cover something in faster with 1.5 mtr, I never buy 1mtr.
If your arms are short or if it's very windy then it can be tricky

When did you last have your Short Arm Inspection ?

 

[^woody^]

do all proper roofers use 1.5 m rolls on main house roofs rather than 1 m rolls?

I've seen proper roofers do a proper shiite job, so don't worry about what "proper" roofers use

Buy and use whatever you like

 

[^woody^]

DIY 1 mtr roll.

So every roofer who used a 1m roll from the 1950's right up to today is a DIYer?

My local trade only merchant does not stock 1.5m membranes

 

[noseall]

My local trade only merchant does not stock 1.5m membranes

Mine neither. They used to and i did like the 1.5m especially for valleys.

1M rolls definitely does not equate to DIY.

What a silly statement.

 

[datarebal]

Personal preference here is 1.5.. There's no real difference apart from speed of cover and less laps. maybe you gain a bit every two runs i guess.

Probably Catlad is meaning 1mtr roll is easier for DIY to which i'd agree.

 

[catlad]

Sorry about the confusion what I meant is that I would not recommend a 1.5m roll to diy'ers. Pro's can decide for themselves obviously.