Commercial Roofing Construction Details

Constructing a high-quality commercial roof system is hard work, but we've made learning how to install our products easy. Get the most comprehensive, up-to-date, manufacturer-approved installation instructions with these useful videos and drawings.

For a look at our complete commercial details specifications, check out our Commercial Roofing Binder.

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CT-01 Edge Flashing

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CT-06 Base Flashing

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CT-09 Base Flashing Inside Corner

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CT-10 Base Flashing Outside Corner

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CT-12 Roofing Drain Modified

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CT-13 Pipe Modified

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CT-22 End Lap

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CTL-SF-05 Drain SmartFlash One

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF

CTL-SF-06 Pipe SmartFlash One

Anchor Sheet
Attach with appropriate fasteners spaced a minimum 9" o.c. in the laps with two additional rows spaced
18" o.c. in the field, staggered OR as required by code. Fasten starting fasteners 6" in from the edge of the roof to avoid edge metal fastener overlap.

Flashing Collar
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered apply FlintBond® Caulk to edge; If torch-welded ensure 1/4" bleed out at edge; If using cold process set in FlintBond Trowel with 1/4" bleed out at edge; if using hot asphalt ensure 1/4" bleed out at edge.

Edge Metal
Mechanically attach a minimum two staggered rows, 6" o.c. or as required by building code; endlaps should receive two nails. Edge Metal shall have a minimum 3/4" rise for gravel surfaced membranes and a 3/8" rise for smooth or mineral surfaced membranes.

Cap Sheet
Fully adhere (self-adhered, torch, cold process or hot asphalt). If self-adhered, in cold weather where Flintlastic® SA Cap (FR) Sheet overlaps Edge Metal surface, hot air weld with bead of FlintBond Caulk at edge.

Download PDF