Re: Laminated Sack/Sako/Trapal

hi.

really think this kind of structure can be built by any skilled carpenter.. arawan mu nalang kaya, then provide him materials?

however, in my point of view... if we are placing water in this blue space.. i think we can consider using steel instead? or treat the wood somehow.. kasi madali silang mabubulok lalo na if coco lumber..

for the roof as trapal.. usual problem is the common ponding.. ok lang siguro consider natin ang polycarb material or any straight material, unless we are willing to push the trapal up every time rain water compiles... pero baka nga nman ok lang if it is supported properly..

Re: Laminated Sack/Sako/Trapal

BTW guys, I'm just looking for the flat sheet material shown above to use as a cover.

Re: Laminated Sack/Sako/Trapal

Probably available at the tent / canvass stores in Binondo somewhere near Panda. I just don't know if it's the exact same material you're looking for.

Re: Laminated Sack/Sako/Trapal

I actually tried posting a reply to this yesterday but for some reason the forum connection seems to be so slow ... I hope this one will go through.

The material you guys want is called "sacolene". It is also called polytarp in the U.S. I and my fellow home boatbuilders use it a lot. It is strong and inexpensive and comes in several varieties. Typical costs are from P80 to P120 per meter off a 10' wide roll. Rolls come in 8', 10' and 12' widths. Colors are the typical Blue and Orange but you can also get it Blue and Silver and All White.

We use this material for the sails of our boats. My sail is a triangle about 16' high and 8' wide and it has not torn in 40 kph (I think) winds. Of course the strength also has a lot to do with how it was sewn.

Though it is strong, it is not especially durable though. It does not last very long when exposed to the sun for long periods of time. My first boat cover was made with this stuff and in less than a year it was brittle already from the UV.

For prolong exposure, I would recommend Maruyama. It is terribly expensive but you can expect it to last "5 years" of direct sunlight exposure. Second hand billboards is another material you guys can consider.

Re: Laminated Sack/Sako/Trapal

Thanks for the lead sir Jay.

Sir Louis, I assume the Maruyama is the opaque material mostly used as trapal in owner jeeps? I was actually looking for something translucent so as not to darken the place.

A year of good use may suffice as it is cheap and could easily be replaced. Do you know where I could get one? More so, a place where I could have it trimmed, sewn and placed with eyelets for the nylon cords to pass through?

Re: Laminated Sack/Sako/Trapal

Binondo is of course THE place to get these. However if you don't need much you could try looking for a canvas supply near you. The dry goods section of wet markets I believe usually have a stall selling them too. All of these suppliers can usually put in the grommets and the edge rope. Mall hardware stores sometimes carry these but they are in fixed sizes.

Yes Maruyama is opaque.

Re: Laminated Sack/Sako/Trapal

good info... i'm also looking at extending my garage with this and some 1" pipes

Re: Laminated Sack/Sako/Trapal

We used them before at one of my boss' projects. For garage cover you would want it to make as low as possible otherwise it will allow too much headroom for "lift" during the monsoon. Needless to say got problematic

If you have to have it high you could pack it really tight to avoid any slack. a drop of 30 cm of the material from the canopy will sorround the frame. The drop should have holes for air to pass through. Worked to keep it from lifting. we suspect it just "scattered" the air flow hence it didnt lift too much anymore.

Re: Laminated Sack/Sako/Trapal

I could hardly imagine the setup sir Ben but what i was thinking was a simple flat sheet tensioned from all four corners. I would also stretch a rope from corner to corner to provide support and minimize the sag like these:

I'm also thinking if instead of metal eyelets or grommets, I would embed a rope inside acting as a rib edge to avoid stretching the actual sacolene but the rope frame instead. Or this is just a ridiculous idea :p

Re: Laminated Sack/Sako/Trapal

Ah setup kasi namin is tent like. Hence there really is a drop on the sides and easy to fly away with the wind.

With this one, the main problem is pooling which i think you already suspect. You can slightly elevate one side so the water will automatically flush down the other. the danger here is you will get a water fall effect... and the splashing towards the ground will be really... well splashy

Lifting from the wind should not be a problem since its not large enough and its blocked by at least 3 walls

Re: Laminated Sack/Sako/Trapal

i think it can be shaped it a sort of gutter on the edge to direct rain water away from the edges, preventing it from splashing

Re: Laminated Sack/Sako/Trapal

I could hardly imagine the setup sir Ben but what i was thinking was a simple flat sheet tensioned from all four corners. I would also stretch a rope from corner to corner to provide support and minimize the sag like these:

I'm also thinking if instead of metal eyelets or grommets, I would embed a rope inside acting as a rib edge to avoid stretching the actual sacolene but the rope frame instead. Or this is just a ridiculous idea :p

I previously tried this same concept/design in my garage, It did not work as planned.