So why do roofing contractors put rock on a flat roof? There are several reasons. The ballast (rock or gravel ) protects the waterproof membrane underneath from the blistering and cracking damage from the sun. The ballast helps weigh down the membrane to keep it in place. And, it makes the roof more energy-efficient. Some…
Read moreEmergency Cleaning
Emergencies can happen anytime. And when they do, a quick response is critical. Blackwell's Inc. received a 5:05 PM call yesterday to respond to an immediate need at a large industrial site . The facility had accidently filled the oil fire suppression and effluent tank to capacity with runoff water, leaving no room for any…
Read moreRepair of a HazMat Storage Area
[caption id="attachment_4098" align="alignleft" width="225"] Crack at base of ramp into a secondary containment area[/caption] A hazardous material is any thing which has the potential to cause harm to humans, animals, or the environment. It could be in the garage, the bathroom, even the kitchen, but without a doubt, most homes, if not all homes in…
Read moreVacuum Truck Removes Contaminated Flour From Silo
Using a Vacuum Truck to Clean Silos How do you dry 80,000 lbs. of wheat flour, contained in a silo and wet from rain from a hurricane ? You don't. You use a vacuum truck to remove it from the silo and then you dump it. [caption id="attachment_3992" align="alignright" width="225"] Blackwell's GapVax truck dumping a…
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