Rubber Roof Condensation Problems

That excess moisture ends up as drops of condensation on the roof.

Rubber roof condensation problems.

Essentially condensation occurs at night when the temperature inside a building is warmer than outside. Over time this excess moisture can lead to the unseen decay in roof timbers and fixings. It can also have an effect on thermal insulation materials as the measured thermal performance reduces when increased moisture is present. First there is little air movement within the roof system to pump moisture laden air into the roof.

Roof condensation has a very specific cause. These roofs have few inter material condensation problems for two reasons. As it cools it can t hold as much moisture. Although condensation in roofs may not seem like a serious problem it actually is.

But with proper design and maintenance principles you don t have to sweat roof condensation issues. Condensation can cause a number of problems within a building particularly interstitial condensation which can occur inside the roof s structure. Using the wrong roofer to install a rubber roof can lead to problems down the line due to incorrect installation and can even negate a warranty on the rubber itself. The rapid cooling leads to immediate condensation.

Roof condensation occurs when moisture becomes trapped between the roof and the insulation. In the case of the timber trusses and purlins they will rot and eventually lose their stability. Moisture occurs when heated air inside the home rises up to the roof where it meets the colder temperatures of outside air. House has condensation problems and roofer plans to install single ply rubber app torch down over 75 base sheet nailed to deck.

This applies to both the timber and steel trusses. And second the roof deck and rigid insulation form a reasonable interior vapor barrier. Virtually the only negative for a rubber roof is appearance and even that drawback can be overcome with the use of rubber shingles or acrylic paint. Warm wet air rises and meets the cold roof and cools.

If this problem is not caught early it can be a very expensive and possibly dangerous problem to fix. It is the leading cause of the deterioration of trusses. Although moisture problems in the roof assembly can be due to waterproofing deficiencies don t neglect the effect of condensation. It s no surprise that this tends to occur more in colder months when home heating is more common and intense.

Picture a cloud of moisture floating overhead between the rafters.