How To Build With Fiberglass
Greenhouse Construction Tips
Great greenhouse tips and useful information to
1.Use any good quality wood for your greenhouse framework.
2. 2 x 4 lumber is adequate for framing, but use heavier lumber in snow zones
3. Space rafters and studs 2 ft. apart and install blocking every 24″ to 36″ in walls and between rafters.
4. Flat fiberglass is rolled out horizontally on roof, but can be installed
5. Caulk all fiberglass seams.
6. Secure flat fiberglass with wood lath on rafters and studs (no horizontal
7. Provide for ventilation with an exhaust fan system, or large vents in
Framing Notes for Fans & Shutters
For the greenhouse:
Frame wall openings square and 1/2″ larger than fan blade and shutter sizes.
For finished sunroom:
Frame rough openings 3-1/2″ larger than fan and shutter size. Line opening with 2×4, offset
Bayliss Solar-Powered Vent Controls
These “top of the line” controls will open and close greenhouse vents automatically without
Materials: Bayliss openers are made from the best corrosion resistant materials: brass, stainless steel and satin-anodized aluminum. They are designed to give many years of service,
Capacity: The Bayliss can exert a force of 14 lbs. at the point where it is attached to the vent. A
Openers can be installed in a series on a long vent to replace worn out electric vent
Installation: Easy to install with screws: top arm to vent, bottom arm to greenhouse frame. Illustrated