roof dimension?

[delagina]

I have an equipment that needs roof.
No Siding.
Where can i get reference for roof length, width and height based on equipment dimensions.

 

[MiketheEngineer]

What are you talking about??? The roof needs to be bigger than the equipment - period -- Unless you are worried about wind borne rain - then you might need to add 20-50' depending in storm intensity??

 

[BAretired]

Do you need to service the equipment from the top?
Why do you show a sloping roof?
Are you prepared to allow rain to hit the top of the equipment under strong wind conditions?
Does the eqipment give off heat?
What kind of equipment is it?

BA

 

[delagina]

@ba,

no i dont need to service from the top.
equipment department wants it protected from rainfall.

wind borne rain was my concern since this is not enclosed.

so i am looking for a guide so i wont oversize/undersize the roof.

equipment is about 20 ft length by 1 ft width by 6 ft high.

it's also kinda tight in there. see pic. green equipment. blue roof.

 

[MiketheEngineer]

Wind borne rain kinda varies a LOT!! At 20 mph - not much - at 150 mph - pretty much goes every where!!

 

[BAretired]

Why can't you simply enclose it?

BA

 

[MiketheEngineer]

Like BA says - if it worth much more than $1000 - better enclose it!! Tarps can be used if sufficiently tied and roof is designed for such loads.

 

[delagina]

I cant enclose it because equipment dept dont want to enclose it. I believe equipment gets too hot so it cant be enclose.

 

[MiketheEngineer]

Dimensions would be helpful - Also wind speeds. And maybe you can't guarantee anything if you don't enclose it??

 

[BAretired]

How about using screens or louvres to dissipate the heat but prevent the ingress of rain?

BA

 

[woodman88]

If the equipment department want it to be protected from rain than enclose it.

If they just want to cover it for the service people during rain, then size a cover for an angle from it's base of 45-60 degrees to the edge of the cover and get them to approve the size.

Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.

 

[msquared48]

Ask them what clearances are needed for heat dissipation, and if louvers would be an option as mentioned above.

Mike McCann
MMC Engineering

 

[kingnero]

Also, bigger is better.
if you oversize: if they'll complain, it'll be only once: when the bill comes.
if you undersize: you'll hear about it every time again.