For your own safety and ease for birds to dive down, why don't consider cascading design at the void ie say 2nd floor void 20ft length, 1st floor void 17ft length etc. 3-4 ft protrusion at each floor narrowing at the ground like how the architect design for some shopping centres void area.

Accidents do happen and if happened, drop down from 3rd floor, land on 2nd so 11ft drop. Drop down from 2nd floor u land on 1st, 11ft drop. Bad but not as bad as dropping all the way 22-33ft down! Still have some hope of staying alive.

Just to share 2 cent hope can spare some lives.

If not scare of accidents, do a reverse cascading design but with sufficient parapet wall height and other safety precautions. May be a swimming pool at the bottom, just a big splash, sorry bad joke.

Also think/check properly if rubber plantation. Personally have some reservation for rubber land.

This post has been edited by Bobby C: Jul 1 2011, 06:48 PM

Why so? Cos' of the formic acid used?
If the tappers are going for scrap then formic acid will be applied to each cup/bag.
If it is latex then formic acid is applied only at the processing plant.
My neighbor goes for latex.
Or it is something else and not formic acid.
The latex flow stimulant?

This is the way I do with my new BH using a centre large void area to place my stairs so that you can see where you are going and better be safe that be sorry.

Thank you all for your feedback so far.
Here's a hybrid of all that I chose as relevant.
1)larger and higher (all floors now same height) roving room.
2)larger LAL
3)staircase handrail (metal frame would be fine too)
Again, I humbly seek all sifu's critique.
It now resemble a 70's apartment with airwell.


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Your design is more or less similar to mine and I regretted my design because of the staircase insides the building.

Why?
Is it cos'
1)each time you go in you can't avoid disturbing the birds?
2)prevents an unobstructed flight path
3)taken up space you could have used for NP?

If space optimisation (thus costs) wasn't a concern I would like my staircase isolated in it's own well too (like the pic I shared in V2).
If the stairwell is built on the west wall it does double duty as a double wall for insulation.
But it will result in my west facing LMB having to be a tunnel the length of the width of the staircase.
Not sure a tunnel like LMB will be a problem for the birds.
I can't consider east facing LMB due to neighbor's rubber trees obstructing the flight path.

send me your google sketch up files, easier for me to describe by changing the the drawing.

Do not have walkway at far end of the roving room as it acts as a barrier to the new incoming birds. The air well should not have any obstructions.

In out holes should be closer to the corners so that when a bird comes in it will not overlook an abyss.

Since there is a hot discussion on the design as of now, let me submit mine for more critics.

What do all u sifus think?


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are you being serious?

OooooO ^ <

I have modified the diagram as I have understood them.

This statement is unconventional and pricked my curiosity ...care to share the basis?
"when a bird comes in it will not overlook an abyss."




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of course i am serious. why, really that bad?

I am all for cascading Inter-Floor Voids.

dear all sifu,

i am planning to start this swiftlet business but no experince at akk.
i coem across this topic here,
http://www.swiftletecopark.com.my/
is it ok or look like scam?

another issue, i see more ppl advertising now
288K, complete with building and return, liek we buying the shoplots for swiflet business.

anyone come across here?

thanks

This post has been edited by pychan: Jul 3 2011, 06:25 PM

well, in a way yes. Lost of wasted space, partitions to stop the birds in coming in, incomplete sketch(no details) etc.

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Added on July 3, 2011, 7:19 pmImagine being a bird flying out in the bright sunshine and suddenly entering a hole that has perhaps 5% of the ambient outside light.

The eyes have to adjust very quickly, which these birds are quite capable of. Just before entering, sonar mode is switched on and the hole, side walls are detected, all the time being conscious of predators. Suddenly, the floor disappears, there is absolute black below and no sonar from the floor, shocked, the bird rushes out towards the light. All this happens in less than 1 sec. ( This is akin to Disney's Space Mountain Ride for humans.)

It is only because of the presence of bird sounds from below that will encourage the bird to perhaps venture in again.


This post has been edited by tuckfook: Jul 3 2011, 07:19 PM

The first reason.

I all for isolated staircase well at the LAL or roving tunnel or annex to the outside wall. Open a 2' x 2' hole with sliding plywood window at the staircase entrance each floor for observatory and monitoring purposes (placing cctv at the hole) without human present being felt by the birds.

The bottom line is, the BH design must provide human access to every part of the the building without going thru the nesting area. I learned my lesson the hard way when the hired workers walked up and down the nesting area just to fixed a small roofing problem and the birds don't like it.

This post has been edited by aeiou228: Jul 3 2011, 08:41 PM

70' x 23' is the size of bh, right?

from civil practice point 80' x 20' will be economical . all column apart is 16' .

after deduct staircase 4 feet n walkway 3 feet, left 13'. so opening 13'x 16' still acceptable


hence staircase r in a room, u can create a glass opening at the centre well.

in these case no additional beam r required n it will save cost on the rc work.





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 20x80_1_.pdf ( 80.68k ) Number of downloads: 231
 20x80_2_.pdf ( 47.54k ) Number of downloads: 174

When I looked up from the cave bottom to see how cave swiftlets spiral upward toward the cave hole to make their exodus from a cave and likewise spiral downward in to the abyss to head home. I am sure that is how many farmers apply the same to house swiftlets in the past and now. There are hundreds of thousands if not millions of swiftlets do this in caves and some house swiftlets do similar stunts using spiral staircase as LAL. It takes some getting used to for new and baby swiftlets guided by the old birds and light from the entry hole. Just my observation.

This post has been edited by swift4ever: Jul 4 2011, 08:48 AM

http://forum.lowyat.net/topic/1417034/+1740
this have been discussed a few times previously ... the above link is the most recent

This post has been edited by BirdNest_Satay: Jul 3 2011, 11:56 PM

and if there are no old birds to guide new birds into and out of the house ?

The cave walls are full of features and does not have changes that are sudden whereas coming in from a window can be. One of the main reasons for in/out holes to be close to a side wall.

A top opening allows light to travel all the way to the bottom, a window opening does not, especially for a 3 or more storey house.

If we could build a BH with a funnel type opening, it might be ideal. A small hole opening slowly into a large amphitheater.