Apr 25, 2018 · That roof penetration and flashing it has always been a problem when it is not within a weather protected space. It seems reasonable that such a system can transmit the …

Oct 9, 2002 · Radiation from the pipe to the sky? Have you considered the probabilities of no wind. Check with weather bureau on the probabilites for the worst conditions which might also …

Jul 8, 2013 · It is weather - rain, dust, salt mist, sand, sun rays, cold at night, even frost and snow (although rare). You want to protect your equipment in the water treatment plant in RO …

Jul 30, 2010 · Hi all, I am working on a 6 foot cantilevered retaining wall that will have 4" of asphalt cast over the toe of the footing right up against the wall. Will the asphalt resist sliding …

Dec 6, 2019 · We always use A-36 material but are aware of brittleness at low temperatures. Is there a general "rule" when to switch to a cold weather steel? 516 Grade 70N / A572 / CSA …

Oct 6, 2008 · As you head toward the sky and colder temperatures, the temperature progressively drops due to conductive heat transfer. So at 6 feet, it is 50 degrees, at 5.5 feet it is 45 degrees, …

Nov 29, 2008 · Need some advice about hydro testing in cold weather with glycol. -Understand when pipe temp rises the pressure goes up. -When pipe temp is dropping the pressure will …

Nov 22, 2012 · Determine the date of failure and then ask your local weather office if they can look up the weather that date (lightning). Look at the physical circuit (as distinct from the …

Oct 30, 2017 · Check out the book "Design and Control of Concrete Mixtures" by the Portland Cement Association. They don't provide specifics on how large mass concrete structures can …

Oct 28, 2021 · Those are two separate things. Heat loss for a pool is a combination of radiation, convection, and conduction > radiation -- in to the cold, cold, sky > convection -- into the …