If it's going to be cold and rainy and you're doing a pop-up, four sides with a flap for the door is a must. When the temps dropped to the 40's on us this April during a comp we'd have died if we didn't have this with us.
Cold and rainy outside...warm and dry inside. Kept a 12x12 above 70 inside when it was 40 outside.
Neil -- "Easy Bake Master"
NB Bandera [gone to heaven...conveniently located in Long Island, NY]
Rebel 23, WSM A, WSM B, UDS, Easy Bake Oven
Pork Pistols BBQ
MOINK...It's what's for linner.