Easy to Install
Installation is fairly simple and requires only basic carpentry and coating tools. Successive courses of PermaBase are attached to the rafters or roof sheathing with 1”x4” purlins used as spacers. The Acrylabs roof membrane is then applied to the completed construction. The liquid applied and fully reinforced system is used to flash penetrations and is terminated at all edges by wrapping it over the fascia and rake boards. Hips, valleys, ridges, etc. are fully sealed and become seamless without the use of other flashing materials or accessories. Wind and wind driven rain can find no point of entry on a completed Island Style Roof. There are no loose edges or flashings where wind can get a purchase and peel back the roofing.
The completed Island Style Roof has great curb appeal and is an attractive architectural feature for most buildings. The design is appropriate for all roofs with a minimum slope of 2:12 and up to a vertical surface. The system works well on hip roofs as well as gable and shed designs. Finish colors include a range of pastels along with a highly reflective white to keep the roof as cool as possible.
The Island Style Roof relies on Acrylabs’ commercial roof membrane technology which has been used successfully since the late 1990’s. Acrylabs manufactures the liquid components of the membrane system to be extremely durable. As millions of square feet of completed Acrylabs roofs will attest, the seamless membrane has demonstrated its value. In order to adapt this commercial roofing technology to sloped roof surfaces, Acrylabs teamed up with engineers from National Gypsum to use PermaBase to create an attractive roof profile. Relying on a long history of roof design in island countries, the Island Style Roof system was developed to mimic the Bermuda profile. Using modern, state of the art materials has enabled Acrylabs to create a high performance roof with the attractive look of a traditional design.
Acrylabs liquid applied roof systems are applied in multiple coats with fabric reinforcement embedded between coats. Applied as a liquid, the roof membrane conforms perfectly to all shapes and geometries including the stepped profile of the Island Style Roof. The resulting membrane is totally seamless and prevents water and wind penetration under most any conditions. The roof membrane cannot blow off or lose pieces like a shingle roof. The fully adhered membrane cannot be peeled back in high winds like a metal or single ply roof. The same components of the liquid applied membrane used across the field of the roof are used to create tight, fully adhered flashings at all roof penetrations. There are no clamps, boots or other flashing accessories that can be damaged or admit water during severe weather.
The Island Style Roof will perform in a wide variety of climates from Alaska and the Yukon to Caribbean and tropical environments, from -60 F (-50 C) to well over 100 F (40 C). The entire system stays stable and remains flexible in this wide temperature range.
The Island Style Roof has been designed and tested to perform in hurricane conditions. The roof is approved for use in the High Velocity Hurricane Zone (HVHZ) in accordance with the Florida Building Code, 6th Edition (2017). The testing was able to create an uplift pressure of 300 psf (pounds per square foot) before the structural framing started to break apart. This uplift pressure varies with different building structures but equates to wind speeds of over 240 MPH. A properly installed Island Style Roof should be able to withstand a Category 5 hurricane which produces sustained wind speeds of greater than 155 MPH.
PermaBase lightweight cementitious roof boards provide a sound surface for the Acrylabs membrane. The boards are moisture and rot resistant and provide great impact strength. PermaBase also contributes to the superior fire resistance of the Island Style Roof assembly. The Island Style Roof has been tested and approved with a Class A Fire Rating.
Most building materials break down in the presence of sunlight. UV exposure will degrade the best tiles, shingles or other asphaltic roofing. The Acrylabs membrane covering the Island Style Roof system is a 100% acrylic formulation and is UV resistant. Even over many years, the surface shows little or no effects from UV exposure.
The Island Style Roof is so stable that it can be renewed every ten or fifteen years with a single maintenance coat. This means that the roof is sustainable and there should be no need to tear it off or replace it for the life of the building. Some building owners even take the opportunity to change the color of the finish when recoating.