Could the extra weight of the roof be causing this?

Extra weight may cause changes to hormones that increase your risk.

Her weight caused the ways to settle into the ground, preventing further movement.

Its weight also caused it to come back to earth at slightly higher speeds than the others.

Also the weight of the lead used in construction can cause the wood to twist.

The extra weight on the creature's back causes its death.

Their combined weight could cause them to drop through the floor.

Too much weight can cause damage to the scanner's working parts.

He tried to calculate how high the boat would go before its weight caused it to level off.

Even before he saw the line of liquid in it, its light weight had caused him to check and wonder.