Q. What is the best way to attach gutter downspouts to a house with EIFS?

A. John Edgar, senior technical services manager at Sto Corp., a manufacturer of EIFS systems, responds: To fasten something light to an EIFS wall, you will need screws or lag bolts long enough to reach through the rigid foam to the sheathing or framing. You’ll also need a PVC sleeve (plastic tubing or conduit) with an interior diameter a little...

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