This Saturday, April 13, a construction crew will install insulation at the Hartmann Building, 4575 Sand Point Way NE. Though the work will take place indoors, an air compressor will be used outside between 8 a.m. and 5 p.m., which will generate moderate levels of noise. If you have questions, call 206-987-8000 or email construction@seattlechildrens.org.