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Home Improvement--General/loud thumps in the house from attic

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Question
We are having a really cold winter and we have moved into a house for 3 years now, but this year we are hearing a lot of noise throughout the house, especially on cold days like today where the windshield makes it -30C.  Is this something I should be worried about?  I noticed there is a couple of hairline cracks in the ceiling in a couple of places.  I know it's the house moving but I'm not sure if there's anything I should inspect or worry about.

Answer
With big temperature changes the beams in your house expand and contract.  This will always make some noise as they slide over each other.  Just like earth quakes make noise as the snap into new position your house can do the same.  It is usually not a problem.  Harvey

Home Improvement--General

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Harvey Chichester

Expertise

Expansion joints, Concrete floor coatings, bubbles, craters, floor repair, industrial flooring, garage floor seals, building maintenance, and floor paint,

Experience

Harvey Chichester is a well published principal of Durall Industrial Flooring, a company with more than 40 years experience in developing special flow-coatings for industrial and residential floors. Automotive and shopping centers, breweries, food processing plants, manufacturing plants, airplane hangars, car washes, kennels, warehouses, printing plants, residential basements, pool decks, and condominiums are among some of the facilities in which he has installed floors. http://www.concrete-floor-coatings.com During that time, his team of chemists has produced continual improvements to over 500 products, including the acclaimed Dura Seal and Dura Poxy lines of epoxy floor coatings. He has managed installations in all 50 states, 5 Canadian provinces, and 7 countries.

Organizations
Durall Industrial Flooring

Publications
Aricles appear in over 3500 locations on the web.

Education/Credentials
MBA Marketing, BSB Finance minor Management, BA Economics minor Sociology, 7 years working beside Bench chemists at Durall Industrial Flooring.

Past/Present Clients
Iowa Beef, Pillsbury, General Mills, Banta Printing, 3M, Control Data, UFE, Land O Lakes, Thousands of residential garages, warehouses, machine shops, and automotive centers

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