milgard casement window parts

Home Owner from Truckee, CA

Jun 11, 2020 5:27 pm

The weatherstripping fits into a T-slot. The upper fin measures 11/32", the lower fin 1/4", and the distance between the two 7/32". The height of the foam is 7/16". In addition, there are two plastic parts that fit together when the window is closed. The part attached to the sash frame is broken.

3 user uploaded images

4 Replies

Tom from SWISCO

Jun 16, 2020 11:07 am

Your weatherstripping is discontinued and no longer made, but I am confident that you can use our 58-170B as a substitute. Look over our information and dimensions on its store page to confirm.

I'm sorry to say that I don't recognize the plastic piece in your other two photos. Can you go into more detail as to its function?

Home Owner from Truckee, CA

Jun 16, 2020 10:08 pm

Thank you very much Tom. I plan to purchase your recommended substitute weatherstripping.
Regarding the mystery plastic piece, I am not sure of its function. It is located in the middle of the sash and side jamb. The window and sash are four feet tall, so perhaps these interlocking pieces prevent bowing of the sash and assure a tight fit during closure. I will try to epoxy the pieces together or perhaps fabricate a new piece. Thanks again for your help.

Tom from SWISCO

Jun 17, 2020 8:19 am

Sounds like a plan! I'm at least confident that our weatherstripping will work for you. Good luck with your project and please let me know if I can be of further help.