Ghid de montaj sindrile bituminoase IKO ARMOURVENT MULTI

Limba: Engleza

988 afisari

Tip documentatie: Instructiuni montaj, utilizare

Pagina 1 - Ghid de montaj sindrile bituminoase IKO ARMOURVENT MULTI Instructiuni montaj, utilizare...

Armourvent® Multi application guide CONTENTS Why ventilate a shingle roof 2 A balanced system: the key to proper roof ventilation 3 Calculating the net free area of vent openings 4 Installation of IKO Armourvent® Multi 6 Ridge vent installation instructions 10 Hip vent installation instructions 12 Off peak vent installation instructions 14 UK Armourvent® Multi application guide WHY VENTILATE A SHINGLE ROOF? A BALANCED SYSTEM: The Key to Proper Roof Ventilation Unventilated shingle roofs will cause high temperatures inside. This will age the shingles much quicker and at the same time create unhealthy, moist air to live in. Ventilating the roof will lower the temperature of both the shingle roof and the space directly underneath, leaving the roof structure unaffected and preventing accumulation of moisture in the attic. The most important factor in roof ventilation is the need for a “balanced system”. This means for

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every cm² of air exhausted, it must be balanced by providing the same amount of air intake at the eaves. Ventilating your roof will equalize the temperature of the outer and inner roof. Your roof structure will then be able to withstand sudden temperature changes. Especially those, which are created by thunderstorms during the summertime. Armourvent® Multi Exhaust Ventilating the roof also prevents ice dams. Ice dams are the results of continuous freezing and thawing of snow due to escaping heat through the roof deck being backed up with frozen slush. If it occurs, water may be driven under the roof. A “balanced system” of ventilation, which is the key to proper roof ventilation, allows heat and water vapor to escape from the roof system. Air must be able to circulate freely between insulation and the nailable roof deck, from the eaves to ridges. › extend the life of your roof › increase your living comfort › regulate the moisture in your house Your dryer insulati

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on will function better ⇒ lower utility bills Exhaust Airflow Warm Air Rises (Thermal effect) Airflow Warm Air Rises (Thermal effect) Intake Air At Soffit Intake Air At Soffit Providing a balanced system assures that damaging heat and moisture is being vented out of the attic, protecting the roof from premature deterioration, costly repairs. If an attic has a properly balanced system, the airflow will move from the bottom of the attic to the top, pushing out heat and moisture in a natural flow using air pressure, thermal effect and diffusion. If the system were to be unbalanced, and the Net Free Area (NFA) at the ridge is higher than at the eave, a reverse airflow can occur causing an opposite effect to what is desired. The airflow will come from the top of the house and push down toward the eaves. As a result, heat and moisture are not allowed to escape and additional air and moisture can be drawn into the home. Ventilated: lower temperature inside. With air gap between insul

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ation and roof deck: air escapes via ridge vents, leaving the roof structure unaffected. Unventilated: high temperature inside. Without air gap between insulation and roof deck: condensation forms and the roof structure is damaged. Recognized by builders throughout the industry, are the standards for static ventilation, as found in the requirements for proper ventilation. These requirements call for a ratio of 1:300. This means one cm² of ventilation for every 300 cm² of insulated roof area. In addition, specifications for good attic ventilation require a balanced system – 50% of the vents at the eave and 50% at the upper portion of the roof. Armourvent® Multi application guide -2- -3- CALCULATING THE NET FREE AREA OF VENT OPENINGS The air gap between the insulation and the roof deck must be 4 to 6 cm. Ventilation should be equally divided among the number of vents at eaves and ridges. Air should flow in from the bottom of the roof (eaves) and out through the top of the ro

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of (ridge). Example: The air flow between the eaves and ridge vents must be unobstructed (by insulation or roof beams) to ensure cross-flow ventilation. The total required net free area (NFA) of vent openings is a function of the insulated roof area (P) and the slope of the roof. P Roof area (P) = 120 m² Roof pitch = 35° NFA Armourvent® Multi = 275 cm²/linear m of vents Total required NFA of vent openings: 120÷300 = 0,4000 m² = 4000 cm² Minimum linear m of vents required over total roof: 4000÷275 = 14,54 m Linear m of vents at ridge: 14,54÷2 = 7,27 => 7,50 m Linear m of vents at eaves: 14,54÷2 = 7,27 => 7,50 m Note: P P Roofs with vapour barriers need 40% less ventilation. In certain regions (mountainous areas, the coast) special building regulations may apply. P Armourvent® Multi SAMPLE ROOF STRUCTURES P Dimensions Roof pitch P Required NFA of vent openings 15° - 40° P÷300 41° - 85° Armourvent® Multi Plus 6 m x 22,80 cm 6 m x 28,50 cm Monarch® Armo

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urglass (Victorian) Superglass (-Biber) Monarch®-Diamant Diamant DiamantShield BiberShield ArmourShield Marathon Ultra® (Cambridge Xpress) 15° - 60° 15° - 60° 275 cm²/m 275 cm²/m P÷600 IKO Shingles which may be used Roof Pitches NFA per linear m of vents Armourvent® Multi application guide -4- -5- Detail: Multivent on ridge application (double beam) INSTALLATION OF IKO ARMOURVENT® MULTI Detail: IKO Armourvent® Multi on ridge application (double beam) Detail: IKO Armourvent® Multi on ridge application (rafter) Armourvent® Multi Shingle Nail Shingle Nail Must penetrate roof deck Must penetrate roof deck airflow Decking airflow airflow airflow air ow w rflo airflow airflow airflow Truss Opening Detail: Multivent on ridge application (double beam) Double Beams Underlay Armourvent® Multi Must penetrate roof deck Nail Must penetrate roof deck Underlay airflow Decking air w flo Underlay Shingles Roof Sheathing airflow airflow Seala

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nt cut here ai Vent Detail Opening Double Beams Opening Off Peak Vent can be used at upper end of roof for exhaust or lower end of roof for intake. Nail flo w Armourvent® Multi r fl Sealant airflow airflow Truss Opening Detail: IKO Armourvent® Multi off peak application (intake or outlet) Detail: IKO Armourvent® Multi on ridge application (single beam) air flo w ai Opening Opening Center Beam Shingle Decking airflow airfl ow airfl airflow Underlay Underlay airflow Nail Armourvent® Multi ai ow Underlay r fl Truss ow moisture barrier membrane Armourvent® Multi application guide -6- -7- Shingles Detail: Clerestory (Shed) Roof Detail: IKO Armourvent® Multi eave application (narrow overhang) Detail: IKO Armourvent® Multi shed roof application Siding Rafter/Truss Underlay Sheathing Flashing Detail moisture barrier membrane Armourvent® Multi airflow Underlay Flashing cut here Shingle airflow Vent Detail Truss/Rafter Shingle Drip

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Edge air Solid Sheathing w flo Insulation Fascia Board Siding Armourvent® Multi Underlay Roof Sheathing moisture barrier membrane Detail: IKO Armourvent® Multi eave application (wide overhang) Soid Sheathing Underlay Shingle Insulation Drip Edge airflow Rafter/Truss Soid Soffit Panel Armourvent® Multi Armourvent® Multi application guide -8- -9- RIDGE VENT INSTALLATION INSTRUCTIONS The length of slot cut along the roof ridge controls the amount of ventilation. Remember, for a very attractive roofline, it is recommended that IKO Armourvents® Multi are installed along the entire ridge of the roof. 3 / End cap installation 1 / Ridge slot preparation Install end caps. Pull apart a pre-cut section of the foam end cap found with the IKO Armourvent® Multi. Use a utility knife, to make a cut in the moisture barrier membrane 1,5 cm on each side, back from the end of the section. Cut a 5 cm slot (2,5 cm on each side of ridge) along the ridge(s). For a roof with a centre

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beam, a 9 cm slot should be cut (4,5 cm on each side of the ridge). A minimum of 15 cm must be left uncut on each end of the ridge. Once the slot is cut and any overlapping shingles covering the ridge are trimmed and removed, the ridge is ready for vent installation. Use Bitumious mastic, coat both sides of the moisture barrier membrane between the foam end cap and the vent underside for a tight seal. Attach vent in the corners to the roof and nail vent and end caps in place to roof deck. Drive two nails through the vent and foam end cap to hold foam in place on the ends of the ridge only. Nails should penetrate the wood roof deck at least 1,5 cm. 2 / Vent placement on ridge 4 / Ridge shingle installation Roll out and place the IKO Armourvent® Multi along the entire length of slot also covering the 15 cm minimum uncut ridge on both ends. Secure at the lead edge, inserting the end cap. Pull the vent tight and secure at about 3 m. Pull the rest of the vent tight and secure, insertin

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g the end cap. Multiple lengths of vent can be joined by butting the sections tightly together. We require applying bitumious mastic to the shingles, before installing the vent on the ridge. This sealant should fill any voids between the bottom of the vent and the surface of the shingle. Nail ridge shingles with roofing nails in a common overlapping pattern. Nails should penetrate thewood roof deck at least 1,5 cm. The vent has been installed properly if the bottom of the vent is flat on the roof and the peak is slightly rounded. Armourvent® Multi application guide - 10 - - 11 - HIP VENT INSTALLATION INSTRUCTIONS The length of slot cut along the roof ridge controls the amount of ventilation. Remember, for a very attractive roofline, it is recommended that IKO Armourvents® Multi are installed along the entire ridge of the roof. 3 / Hip and ridge vent transition 1 / Hip slot preparation 45 cm 1 cm 5 30 cm 45 cm To maintain structural integrity, one continuous slot is not r

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ecommended on hip applications. Start ventilation preparation by leaving 15 cm of hip uncut from where the ridge and hip meet. Cut a 9 cm width slot for ventilation (4,5 cm on each side of the hip). Hip slot should be 45 cm inlength, spaced with a 30 cm uncut area between each 45 cm opening. The slot for ventilation should not be cut any lower than 1/3 of the roof to maintain a balanced ventilation system. 2 / Vent placement on ridge Roll out and place the IKO Armourvent® Multi along the entire length of slot also covering the 15 cm minimum uncut ridge on both ends. Secure at the lead edge, inserting the end cap. Pull the vent tight and secure at about 3 m. Pull the rest of the vent tight and secure, inserting the end cap. Multiple lengths of vent can be joined by butting the sections tightly together. We require applying bitumious mastic to the shingles, before installing the vent on the ridge. This sealant should fill any voids between the bottom of the vent and the surface of the

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shingle. Using a utility knife to trim the end of IKO Armourvent® Multi. Insert the foam end cap under the IKO Armourvent® Multi where it is at full width. Fasten vent for hip at point where it meets ridge. Roll out or place the vent all of the way down the hip, covering 2 pre-laid cap shingles at the bottom of the hip. Go back over hip vents and fasten at 10 cm intervals. If the Armourvent® Multi is not being run the entire length of the hip, use the cap shingles to create a transition. Use sealant to fill any void left between the shingles and the remaining top layer of the vent. Be sure to apply roofing sealant to any spaces left by cap shingle used for transition. If 2 or more sections of IKO Armourvent® Multi are being joined together, an end cap MUST be installed into each end of the joining sections. Repeat on all hips. 4 / Hip and ridge shingle istallation Apply the shingles to the hip and then to the ridge. Nail hip shingles with roofing nails in a common overlapping pat

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tern. Nails should penetrate the wood roof deck at least 1,5 cm. It is important when installing this vent that you maintain the pitch of the roof. The vent has been installed properly if the bottom of the vent is flat on the roof and the peak is slightly rounded. Armourvent® Multi application guide - 12 - - 13 - OFF PEAK VENT INSTALLATION INSTRUCTIONS 1 / Vent preparation 4 / Vent installation Using IKO Armourvent® Multi Plus, peel 7,5 cm of the moisture barrier membrane away from one entire side of the vent. Using a utility knife, cut off 7,5 cm of the corrugated air return at one entire side of the vent. Install IKO Armourvent® Multi Plus along the slot opening with the remaining 7,5 cm corrugated air return placed approximately 2,5 cm below the ventilation slot. Nail down the roll, starting with the lead edge, middle and other end through the 7,5 cm air return. Be sure the moisture barrier membrane is pulled tight and lay a bead of bitumious mastic, 11,5 cm above the sl