Space Sheeting

[aidan]

I have a 4 bay shed I need to reroof and Im wondering about space sheeting v regular sheeting.

Its a slatted shed with the entire East Side open to the fresh air.

The 9" gap you can see in the photo at the top of the wall along the entire length will change this time as the salty sea air has rotted the steel and cleats holding the timber, subsequent sheet breakage and is an expensive repair. Im going to put a flat sheet 8ft long across where the steel rafter is attached to the pillar. Thus I will have a 9" 8ft gap in the middle of each bay of the shed to allow fresh air blow in.

as per photo shed is a good height, 12ft at the low point and 16ft at the high side.

If I space Sheet how long will the timber last. Will the constant getting wet of the timber through the thickness of a nail gap in the space sheeting shorten its life drastically. ?

I know fence posts rot at the bottom and all that, however there isn't much left in the rest of fence posts after 10years exposed to the weather. Chains are only as strong as their weakest link.

 

[Tarw Coch]

I have a 4 bay shed I need to reroof and Im wondering about space sheeting v regular sheeting.

Its a slatted shed with the entire East Side open to the fresh air.

The 9" gap you can see in the photo at the top of the wall along the entire length will change this time as the salty sea air has rotted the steel and cleats holding the timber, subsequent sheet breakage and is an expensive repair. Im going to put a flat sheet 8ft long across where the steel rafter is attached to the pillar. Thus I will have a 9" 8ft gap in the middle of each bay of the shed to allow fresh air blow in.

as per photo shed is a good height, 12ft at the low point and 16ft at the high side.

If I space Sheet how long will the timber last. Will the constant getting wet of the timber through the thickness of a nail gap in the space sheeting shorten its life drastically. ?

I know fence posts rot at the bottom and all that, however there isn't much left in the rest of fence posts after 10years exposed to the weather. Chains are only as strong as their weakest link.

If you mean a gapped roof, don’t do it, I have just ordered new sheets to re do one of ours, it was grand when it was new but once moss built up water would come in through the gaps. Will probably need to renew timbers too, as they have been getting wet where the water comes through, they look sound but how long will they last .

 

[pine_guy]

I can see the appeal on a pitch like that. What about damp proof membrane between the purlins and roof sheets. the think stuff they put in walls.

 

[aidan]

I can see the appeal on a pitch like that. What about damp proof membrane between the purlins and roof sheets. the think stuff they put in walls.

Will be doing that, to stop timber touching sheets

 

[aidan]

Anyone any comment on Will gap sheeting actually increase the ventilation given that the side of sheds is open

 

[aidan]

If you mean a gapped roof, don’t do it, I have just ordered new sheets to re do one of ours, it was grand when it was new but once moss built up water would come in through the gaps. Will probably need to renew timbers too, as they have been getting wet where the water comes through, they look sound but how long will they last .

What age roof was yours

I don’t expect to have a moss problem shed is in a pretty open spot, leaves won’t be building up on it

 

[Tarw Coch]

What age roof was yours

I don’t expect to have a moss problem shed is in a pretty open spot, leaves won’t be building up on it

It’s about 25 years old, has been causing problems for a few years now, this year I’ve decided to bite the bullet and get it done. It’s rather annoying having to replace otherwise good sheets, seems such a waste. I did discuss with the guys who will do the job if there was any second hand value in them but we concluded that to be real used they would have to spend longer taking them off carefully which would probably cost as much as any second hand value I could get for them. Similar with the timbers, they look good but as we know they’ve been getting wet in the gaps do I really want to risk putting a new roof on them only for them to go in time and the job having to be done yet again.

As for ventilation, I have a shed with a raised ridge and that seems to work well so will raise the ridge while we’re at it.

 

[KennyO]

@aidan

Looking at your pictures now I can't really see the benefit of space sheeting it. The hot air off the beasts should rise with the roof and escape along the higher open side. Is there a gap where it meets the short downward sheets at the front? I would leave a large gap there for air to escape.

 

[aidan]

@aidan

Looking at your pictures now I can't really see the benefit of space sheeting it. The hot air off the beasts should rise with the roof and escape along the higher open side. Is there a gap where it meets the short downward sheets at the front? I would leave a large gap there for air to escape.

There isn't actually, piece of flashing between the two. I understand what you are saying, we are not short of wind so I think thats covering off all that.