Poking holes in plaster walls can leave bare lath flapping and loosens the plaster surrounding the opening. This time-tested repair method restores the plaster wall to good-as-new condition.
Ray tracing animations show how sound in an enclosed room reflects off of hard surfaces, creating reverberations and echoes that can make spoken language unintelligible.
Contact between dissimilar metals – like copper fittings threaded into steel pipe or copper flashing fastened with steel nails – sets up an electro-chemical reaction that causes corrosion and leads to failure of the “less noble” metal