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Exterior Pro Materials
MittenJamb-Fit™ Soffit

Mitten Jamb-Fit™ Soffit

Mitten Jamb-Fit™ Soffit offers a practical slide-lock installation system in two widths: the 8" (Double 4") covers a full palette of 5 colours, while the 16" (Quad 4") is ideal for wider eave spans and delivers 6.26 sq.in./ft of Net Free Air Intake in its perforated variant. Both sizes share the same 192 sq. ft. per carton and lifetime non-prorated transferable warranty.

.040"5 colours

Available Colours

5

Frost

Standard

Standard(4)

Bold(1)

Colours shown are approximate representations only and may appear differently on screen than the actual product. Request a physical sample before making your final decision.

About Mitten Jamb-Fit™ Soffit

Mitten Jamb-Fit™ Soffit offers a practical slide-lock installation system in two widths: the 8" (Double 4") covers a full palette of 5 colours, while the 16" (Quad 4") is ideal for wider eave spans and delivers 6.26 sq.in./ft of Net Free Air Intake in its perforated variant. Both sizes share the same 192 sq. ft. per carton and lifetime non-prorated transferable warranty.

Mitten Jamb-Fit™ Soffit features a durable slide-lock installation system that delivers a clean, finished appearance to eaves and rooflines while providing essential ventilation. Available in two sizes — 8" (Double 4" profile) and 16" (Quad 4" profile) — each in Solid and Perforated variants. The 8" size covers a wide colour palette of up to 5 colours; the 16" is available in Frost. Will not rot, peel, chip, flake, or blister and never needs to be painted. CCMC accepted, VSI certified.

Available at Pro Materials in Newmarket, Ontario, supplying contractors, builders, and homeowners across York Region, the GTA, and Ontario. All products are available on a quote basis; contact us for wholesale pricing and current availability.

Profiles & Specifications

Mitten Jamb-Fit™ Soffit - Jamb-Fit™ 8" Solid profile
JF8-SJamb-Fit™ 8" Solid

Double 4" profile — 8" wide solid panel

Length12' (3.66 m)
Height / Width8" (20.32 cm)
Thickness.040"
Panels/Box24 pcs/ctn
Coverage192 sq. ft. (17.84 m²)
InstallationHorizontal — Soffit
Mitten Jamb-Fit™ Soffit - Jamb-Fit™ 8" Perforated profile
JF8-PJamb-Fit™ 8" Perforated

Double 4" profile — 8" wide perforated panel

Length12' (3.66 m)
Height / Width8" (20.32 cm)
Thickness.040"
Panels/Box24 pcs/ctn
Coverage192 sq. ft. (17.84 m²)
InstallationHorizontal — Soffit

Net Free Air Intake: 3.14 sq.in./ft

Mitten Jamb-Fit™ Soffit - Jamb-Fit™ 16" Solid profile
JF16-SJamb-Fit™ 16" Solid

Quad 4" profile — 16" wide solid panel for wider eave spans

Length12' (3.66 m)
Height / Width16" (40.64 cm)
Thickness.040"
Panels/Box12 pcs/ctn
Coverage192 sq. ft. (17.84 m²)
InstallationHorizontal — Soffit
Mitten Jamb-Fit™ Soffit - Jamb-Fit™ 16" Perforated profile
JF16-PJamb-Fit™ 16" Perforated

Quad 4" profile — 16" wide perforated panel for wider eave spans

Length12' (3.66 m)
Height / Width16" (40.64 cm)
Thickness.040"
Panels/Box12 pcs/ctn
Coverage192 sq. ft. (17.84 m²)
InstallationHorizontal — Soffit

Net Free Air Intake: 6.26 sq.in./ft

Certifications & Testing Standards

Mitten Jamb-Fit™ Soffit meets or exceeds the following Canadian and international performance standards.

Test / PropertyStandardResult / Value
CAN/CGSB-41.24.95
-Certified
CCMC Acceptance No. 06419L
-Certified
ASTM D3679
-Certified
ASTM D4216 — cell classification 13344B
-Certified
ASTM D1929 — Self-Ignition Temperature 824°F (440°C)
-Certified
ASTM E84 — Flame Spread 20 | Fuel Contribution 0 | Smoke Development 360
-Certified
ASTM E119 — 1-Hour Fire Endurance (wall assembly)
-Certified
ASTM D4226 — Wind & Impact Resistance
-Certified
VSI Certified Installer Program
-Certified

Compatible Accessories

Ready to order Mitten Jamb-Fit™ Soffit?

Submit your spec list and we'll respond with pricing and availability - usually within one business day. Available in 5 colours for your project.

Get a wholesale quote

Tell us the product, colour, and quantity - we'll handle the rest.

Request a Quote
or call us at+1 (905) 836-7272