Glazing & Roofing Solutions

Interstate Plastics offers a wide range of glazing and roofing solutions from high light transmission greenhouse panels to Miami Dade County Hurricane tested storm panels and even bullet resistant acrylic and polycarbonate.

Polycarbonate Glazing & Roofing

Half the weight of glass and 250 times stronger, polycarbonate has become a go-to material for industrial and commercial glazing and roofing. With exceptional optical clarity and light transmission properties, as well as a variety of attractive colors and UV/LT controlled grades, polycarbonate is a great option for:

Skylights and sidelights
Architectural roofing
Industrial roof lights
Agricultural greenhouses
Indoor partitions
Car ports
Light roofing and awnings
Deck covers
Pool enclosures
Shade canopies
Animal shelters
Facades and curtain walls
Tool sheds
Walkway covers
Acoustic barriers along highways
Anti-vandalism windows
Bullet resistant dividers in banks and retail outlets
Residential roofing: pergolas, canopies, patios, sun rooms, verandas, and gazebos.

[Twinwall Installation Guide PDF]

[Polygal Features and Benefits PDF]

[Polygal Multiwall Warranty PDF]

[Polygal Anti-Fog Warranty PDF]

[TopGal Multiwall Standing Seam System PDF]

Windows, Glazing, & Light Transmission Applications

Enlist nature's qualities for interior atmosphere: polycarbonate is perfect for building lighting, open passageways, pools, verandahs, interior design elements, display windows, and exhibitions. Twinwall and multiwall add an air layer for added insulation. Polycarbonate can be curved, formed, and fabricated into nearly any geometric configuration that a designer might imagine. It’s putty in your hands: almost any project, however unique it may be, can be realized with polycarbonate.

Storm & Hurricane Protection

For storm season, our twinwall/multiwall polycarbonate storm armor protects windows and everyone inside from strong winds and flying debris. We offer complete kits that are light and easy to install. Polycarbonate hurricane protection allows for natural lighting and wont mold or rust like wood and metal alternatives.

Polycarbonate Wind Load Charts

These charts show wind loads and sheet deflection that should be taken into account when designing a covering. Use of the graph indicators is quick and easy, and is intended to provide information of a type generally acceptable in civil engineering. Each chart provides data for 3 different sheet widths with the maximum proportional deflection being 1:20 or 5% of the specific width.

The right-hand area, where the curves become more horizontal, measures specifically and only sheets clamped at 2 sides. The left-hand area measures specifically sheets glazed in frames with supports perpendicular to the sheet ribs. For structures built in areas with variance in meteorological conditions, the use of adequate safety factors is recommended in order to reduce risks.

The data and information in this section is given in good faith but only as basic technical support for engineers of various structures. In no way can this information be substituted for the responsibility and liability of the designing engineer of a structure as determined by law. The information pertains to the roofing material only and does not in any way determine the strengths required in a supporting structure or in various glazing systems.

Wind Load Charts:
Polygal Standard 8 mm (5/16") sheet
Polygal Standard 10 mm (3/8") sheet
Polygal Standard 16 mm (5/8") sheet
Titan 10 mm (3/8") sheet
Titan 16mm (5/8") sheet
Selectogal (RFX) 16mm (5/8") sheet
Thermogal 32mm (1 1/4") sheet
Thermogal 35mm (1 3/8") sheet
Triple - Clip 16mm (5/8") Panel

.236" (6mm) Twinwall Accompanying Parts

U Profile #212
H Profile #201
Base/Cap #230/#231
1" Vent Tape
Screw #422
Bubble Washer #473
Foam Spacer #505

.315" (8mm) Twinwall Accompanying Parts

U Profile #213
H Profile #202
Base/Cap #230/#231
1" Vent Tape
Screw #422
Bubble Washer #473
Foam Spacer #505
Ridge Profile (please call)
F Profile (please call)

.394" (10mm) Twinwall Accompanying Parts

U Profile #214
H Profile #203
Base/Cap #230/#231
Vent Tape
Screw #422
Bubble Washer #473
Foam Spacer #505
Ridge Profile (please call)
F Profile (please call)

.630" (16mm) Twinwall Accompanying Parts

U Profile #215
Base/Cap #207/#211
Vent Tape
Screw #422
Bubble Washer #473
Foam Spacer #505
Ridge Profile (please call)
F Profile (please call)

Working with Polycarbonate Twinwall

Cut and drill using standard wood working tools:

Cutting can be done on a standard circular, jig, or table saw with a blade having 8-12 teeth per inch. Thinner gauges can be cut with a box knife.

Drilling is performed with standard wood drill bits.

Trim with a standard box cutting knife.

Bending is done by cold forming along the direction of the flutes. Bending guides are available.

Bonding ("gluing") can be done with Weld-On 55 adhesive.

Greenhouse Solutions

Get growing with the Snap & Grow 6' x 8' Silver Frame Hobby Greenhouse from Palram Canopia. Heavy duty aluminum frames assemble easily without much hardware. Crystal-clear polycarbonate panels slide right into the frame, lock into place and are virtually unbreakable.

Aluminum framework, clear single layer polycarbonate panels, swinging front doors, rain gutter and roof vent are standard features of the Snap & Grow greenhouse. It comes with an easy to use set-up manual and is available in standard silver or a green powder coat.

Make any backyard a sanctuary - in a snap!

Prop 65 Warning WARNING: This product can expose you to chemicals including Bisphenol A, CAS 80-05-7, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.