I am looking to build a portico (6’D x 7’W)over my front entrance. It will be the type which is square to rectangular in shape with 2 columns on the outer corners supporting it and tied into the 2nd floor rim joist. It will also have a low railing around the perimeter for asthetics. My questions are as follows:
- I want to build a low slope roof for rain and snow runoff. I plan 1/4" for each foot of roof. What’s the normal config used for this type of structure? Sloped from front to back, peak in the middle with runoff to the sides, etc?
- I was thinking of using an EPDM membrane over plywood for the roofing but am concerned about some of the railing posts having to be screwed through it and causing leaks. What’s your suggestions or how is this normally done?
- What about gutters? I’ve seen some with and some without. Any pros/cans to either?
Thanks for your help.