Lean Too

2012paddy2012

Hi All.
I took a few photos of a lean too , at a house that I would like to do in my side entrance.

The last pic is my side entrance. There is a lip under the capping , and I think where the two pillars are , would be the the handiest to run the timber in between.
Ideally I would like to run past the pillar nearest the gate ,just to be flush with the gate so I would have cover to the Gate.

The one I photographed had no timber supports running across ways anywhere along. Seemed ok but a bit "weak" Once the perplex would be reasonably secure I would be happy enough.


I would appreciate any advice......from ..what type of timber to get that would be suitable for outside and that would withstand the rain etc.

Brackets to hold the timber in place....what type?

Amatuer DIY …..NO bother , screwing brackets to wall (using level) will have to stay under the boiler vent , makes it low , it will still be at a gradient for water run off.....Im anxious to have it as waterproof as possible and not to interfere with neighbour ….if timber runs under capping with gutter under ….I imagine it would be ok......not sure how to run one or two "lats" across ways to have it fairly secure , by screwing in to the perplex....

any ideas very much appreciated ….Paddy

listermint

Your concerns should be more around the water pooling into your own render and damaging your house.

Drilling timber battens into your house with no shielding above it. Like your photos they have a roof above. You don't . Will result in water pooling at the batten and leeching in behind the render making it way into the block work behind.


Water ingress in a terrible terrible thing. You'd have to have some method to prevent water above getting in. Generally lead is used channeled into the wall and laid out over whatever is below it. To move water away from the wall.

fiacha

Google "lead apron flashing".

As listermint said, you'll need to stop the water from leaching into the wall and also down the underside of the lean-to roof.

I think the example you posted looks pretty naff. A professional job will look and perform much better. Some nice examples on google images search for "side passage roof".

2012paddy2012

listermint wrote: »

Your concerns should be more around the water pooling into your own render and damaging your house.

Drilling timber battens into your house with no shielding above it. Like your photos they have a roof above. You don't . Will result in water pooling at the batten and leeching in behind the render making it way into the block work behind.


Water ingress in a terrible terrible thing. You'd have to have some method to prevent water above getting in. Generally lead is used channeled into the wall and laid out over whatever is below it. To move water away from the wall.

OK good points indeed. Thanks

2012paddy2012

fiacha wrote: »

Google "lead apron flashing".

As listermint said, you'll need to stop the water from leaching into the wall and also down the underside of the lean-to roof.

I think the example you posted looks pretty naff. A professional job will look and perform much better. Some nice examples on google images search for "side passage roof".

Ya your right.. Does look a bit naff OK. Looked handy enough to do... Thanks

cletus

listermint wrote: »

Your concerns should be more around the water pooling into your own render and damaging your house.

Drilling timber battens into your house with no shielding above it. Like your photos they have a roof above. You don't . Will result in water pooling at the batten and leeching in behind the render making it way into the block work behind.


Water ingress in a terrible terrible thing. You'd have to have some method to prevent water above getting in. Generally lead is used channeled into the wall and laid out over whatever is below it. To move water away from the wall.

Can I assume from your post that with the soffit above the batten in the pictures, lead flashing wouldn't be required?

2012paddy2012

cletus wrote: »

Can I assume from your post that with the soffit above the batten in the pictures, lead flashing wouldn't be required?

The picture of the side entrance with no lean too is mine.
The other was one I photographed.
I did have one made in my last house.. It continued down at the front and the rear of it.. Was still open but with a like 45 degree perplex sheets ..made it more water proof..
It was fitting to the house wall with perplex... On top of a heavy timber Batton...sealed with waterproof like tec 7 ...was 10 years there with never any sort of issue....

I'm concerned and been put off with all this water pooling talk.

If the sheets are fitted properly and sealed with waterproof sealant and the sheets run at an angle I don't get the issue at all.. Water runs off at an angle I had thought......prior to reading these posts (thanks posters)

Thinking of abandoning it as a result thks

listermint

cletus wrote: »

Can I assume from your post that with the soffit above the batten in the pictures, lead flashing wouldn't be required?

It would depend on overhang, angle of the pitch on new lean to and closeness to the over hang.

No full proof answer to the question. Ideally in all scenarios youd have flashing.