Tools & Resources
Designer Shingles With Scotchgard Protector
Value Architectural Shingles
Hip & Ridge Shingles
SBS Peel & Stick Underlayments
Organic Felt Underlayments
ACFoam Polyiso Roof Insulation
ACFoam Nailable Polyiso Roof Insulation
Tapered Polyiso Roof Insulation
Techni-Flo Engineered Roof Ventilation
Inorganic Fire Retardant Underlayment
Atlas Molded Products
ACH Foam Technologies
100% Recycled Specialty Paper
The Techni-Flo® Engineered Roof Ventilation System is the leading steep-slope roof ventilation solution. This state-of-the-art roofing ventilation system is engineered to ensure maximum airflow performance by balancing the intake and exhaust of steep-slope roofing applications. Roof ventilation of steep-sloped buildings is essential to maintain roof system durability and thermal performance. The Techni-Flo® engineered ventilation system provides balanced airflow to maximize building performance and exhaust the threat of moisture. Proper ventilation will help preserve the life of your roof.
Atlas Roofing Corporation manufactures a full line of engineered roofing solutions that are an integral part of the Atlas complete roofing system. The Techni-Flo® Engineered Roof Ventilation System consists of 4 parts: Techni-Flo® EV, ACFoam® CrossVent®, Atlas Nail Base Fastener and Techni-Flo® RV.
The Techni-FloTechni-Flo® RV (ridge vent) exhaust ventilation is engineered to ensure a perfect fit and optimum performance for every roof condition. Featuring an easy to install snap on cover, this all-metal ridge vent can withstand heavy snow-loads and wind-driven rain. Techni-Flo® RV features slotted fastening holes for easy installation and proper fastener placement.
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Atlas ACFoam® CrossVent® combines the performance of a cross-ventilating air space, nailable roof substrate and thermally efficient polyiso insulation. ACFoam® CrossVent® consists of ACFoam®-II or ACFoam®-III polyisocyanurate (polyiso) insulation board and a min. 7/16” APA/TECO rated OSB or min. 19/32” CDX plywood separated with and bonded to 5 individual 1.0”, 1.5” or 2.0” vent spacer strips. ACFoam® CrossVent® is available with an FSC® Certified wood layer upon request.
Atlas Nail Base Fasteners are specially engineered for attaching Atlas ACFoam® CrossVent® and ACFoam® Nail Base Roof Insulation to an approved substrate. Featuring a large, pancake style head with a 6-lobe drive, Atlas Nail Base Fasteners drive quickly and smoothly, and secure panels without the need of a washer. Atlas Nail Base Fasteners are available in three styles for use in wood, corrugated steel and steel members without pre-drilling.
Techni-Flo® EV is engineered for individual jobs to provide a prescribed roof ventilation capacity. This allows air to flow through the ACFoam® CrossVent® panel to the eave, heat and moisture to evacuate, and temperatures of the roof covering to be moderated. This, combined with proper eave ventilation, leads to a longer life for the roof. It also features slotted fastening holes for proper thermal movement and correct fastener placement.
Techni-Flo® EV is not intended for attachment to open ended metal truss or metal bar joist applications.
Select from the following file list to download installation instructions.
Techni-Flo RV slope to slope standing seam installation...
Techni-Flo RV sloped roof meets vertical wall (shingled...
Techni-Flo RV sloped roof meets high wall (shingled) in...
Techni-Flo RV sloped roof meets flat roof installation ...
Techni-Flo RV slope to slope shingled installation inst...
Techni-Flo EV Vented Nailbase Installation Instructions
Techni-Flo IV on slope installation instructions
Techni-Flo RF with vertical z brackets installation ins...
Techni-Flo RP without vertical z brackets installation ...
Techni-Flo TB installation instructions
Techni-Flo RV sloped roof meets high wall (standing sea...
Techni-Flo RV sloped roof meets vertical wall (standing...
Techni-Flo Stiffening Band Reference installation instr...