marine glazing        

Mounting instructions

Windows must be built in carefully to prevent leakage. Observe the following points carefully therefore.

1. Check that the rim that is going to be covered up by the windows is in good condition. If this is not the case, leakage can occur due to rust formation.

2. Check that that part of the ship’s side that will be covered by the windows has been finished flat. Pits and bumps can cause leakage.

3. Check that the ship’s side is sufficiently flat. A convexity or concavity of 1mm per meter run is acceptable. With a greater deviation from flatness the window is bent too much giving the risk of leakage. In this case use thicker or double sealing strip to prevent leaks. If necessary do not tighten some screws so much, to allow the window to spring back to its straight shape.

4. If the side is too concave or convex this causes leaks with opening windows, because the opening part does not close properly due to the curved side. See point 3.

5. Too great a convexity or concavity means that great force is needed to slide sliding windows open or shut. See point 3.

6. The windows are made a little smaller than the hole-in-wall size. Do not fit the windows sitting right down on the bottom rim of the wall. This causes too much play at the top edge and too little overlap between the window and the wall. This can cause leakage. Divide the play evenly between the top and bottom edges by putting small blocks under the window during fitting. These can if necessary be removed after fitting the window.

7. Take care always to use sufficient sealing strip on the flanges of the window.

8. Carefully retighten screws or bolts after a few days. As the sealing strip compresses, the windows can become a little loose.