A workshop on the construction of interior insulating storm windows will be offered Saturday, Aug. 28 from 1 to 4 p.m. at the Episcopal Church of St. John Baptist in Thomaston. The workshop will be conducted by Guy Marsden of Art Tec (arttec.net) and the Midcoast Green Collaborative (midcoastgreencollaborative.org).

These removable wood framed inserts are covered with plastic film on two sides and designed to fit into the inside of existing windows. They are easily removed for storage during the summer. They are inexpensive and simple to make, and help considerably in reducing heat loss through the windows. The cost of the windows will be recovered in one heating season in reduced heating fuel — and then some.

Investing in weatherization has a high return/payback in the Maine climate, with its old leaky housing stock and the strong likelihood of rising fuel prices. Weatherization is one of the best investments people can make these days. Further savings are possible by going in on group orders of the materials needed. The workshop is free, but limited to 30 participants. To register, call 354-9556 or 236-8732 or e-mail clavertu@gmail.com or beedyparker@gwi.net.

Similar workshops are being offered in Edgecomb on a regular basis. For more information see the Midcoast Green Collaborative Web site under “Interior Storm Windows.” Another workshop will be offered in October in the Camden/Rockland area; contact an organizer to express interest.