High Temperature
Pre-Molded Perlite Fitting Covers
Water Entry into Insulation Systems (Page
1)
Water Entry into Insulation Systems: It has been well documented that most water entering an insulation system comes in at the fittings where jacket seams are not well sealed and overlaps are minimal. Our fittings are designed to fit perfectly with pressed aluminum jackets so that the full designed overlap can be used. We have included a letter from the major aluminum Ell-Jac manufacturers that recommends using their products with a molded fitting cover. In addition, if water does get through the weather barrier, our fitting covers will not get wet because our fittings are made from a non-wicking material.
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Most insulation systems begin to fail at the elbows. This failure allows water to wick into the remainder of the system. |
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Calcium Silicate will absorb up to 400% of its own weight in water if exposed to the elements. |
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Increased weight in the insulation systems can lead to other problems such as failures at the pipe hangers and supports. |
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The elbow is one area where a non-wicking insulation such as Perlite is invaluable. |