3/26/2023 0 Comments Membrane pro ii![]() ![]() They can also be used on very low pitched roofs where shingled, slate, or tiled roofing would not perform. Membrane roofs are predominately used as a flat roofing system since they are watertight, which is critical where water is not shed immediately. Membrane Roofing is a roof system that creates a continuous watertight covering to protect the interior of a building. ![]() Read our article about steep sloped roofing systems. There are more economical solutions available for steep sloped roofs. FM Global provides roofing design guidelines in their Roof Deck Securement and Above-Deck Roof Components (1-29) Data Sheet, which is often referenced in architectural specifications. It is also advisable to check with the owner’s insurance company to confirm their coverage requirements - some insurance companies have more stringent criteria for wind speeds and roof uplift. The slope can be accomplished by sloping the structural deck, using tapered insulation, or a combination of the two methods.Īlways check with the roofing manufacturer to confirm the designed slope meets their warranty requirements. The idea is to provide positive drainage toward roof drains so there is no ponding water 48 hours after a rain storm. The minimum slope for a flat roof is 1/4” per foot or 1/4:12, but some owners or insurance companies require a minimum slope of 1/2” per foot. You can read our article about calculating slope for information on the various roof slope notations. Technically, we are talking about low-slope roofs that have a slope less than or equal to 3:12. When we say “flat roof”, we don’t mean perfectly flat, which is undesirable since water still needs to be shed to roof drains. Spray Polyurethane Foam (SPF) Roof Systems.Single-Ply Roof Membrane: Thermoplastic and Thermoset.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |