Corrugated fiberglass panels are wrinkled or waved. This type of fiberglass sheet is used for many different functions, such as roofing and building. Corrugated fiberglass panels are manufactured in the same way as other types of fiberglass. Installing fiberglass panels is not tricky, and it does not require any special tools. Connecting the fiberglass sheets for roofing and walls requires their proper overlapping and sealing the joints. The panels should lap so that there are no open spaces or gaps in between. Make sure the panels overlap according to the specified dimensions in the panel manufacturer's installation manual.
Here are the steps involved to connect the corrugated fiberglass panels for roofing:
Step 1: Install Molding
Position the corrugated fiberglass panels correctly. To do this, first install the molding on the roof joists at every 16 or 32 inches when making the roof. Fix them using the galvanized screws.
Step 2: Placing the First Panel
Place the first panel starting from one end of the roof of the house, and its other end extends over the frame work and overhangs by about 6 inches. Also, make sure that the corrugation rests over the curved moldings fixed on the joists.
Step 3: Fixing the First Panel
Beginning at the side frame, hold the first panel in its place as mentioned in Step 2. Drill a hole into the panel about 2 inches from edge. Set a rubber washer over the hole, and drive a 3 inch screw through it. This will stop water from entering through screw hole. Drive more screws at spacing of 1 foot. Keep the panel straight. Next, fix the screw on the front side in the same manner.
Fix the screws only on the bottom part of panel's corrugations where they touch the wood.
Step 4: Fixing more Panels
Place the second corrugated panel on the roof next to the first one. It should overlap the previous panel lengthwise, on the last corrugation curve of the previous panel. There is over lapping to be done on the width also. On the width (shorter side), the higher panel will overlap the lower panel about 6 inches. This type of connection is to ensure that the water flows down over to the lower panel, without entering the roof.
You may need many fiber glass corrugated panels to cover the roof deck. Fix the panels with screws and washers. Follow the same pattern to fix the other panels.
Step 5: Sealing the Overlapping Joints
Seal the overlapped joints with the bead of silicone sealant, to avoid even the least chance of leakage.
Step 6: Installing Flashing
Take the piece of flashing and bend it along its length. Keep one edge on the wall of house and fix it to the wall and the other end should cover the deck of roof over the fiber glass panels. Apply a bead of chalk to seal the joint along the house.