EPDM ROOFING:  COMPONENTS

rubber membrane

Conservation Technology Rubber Membrane is a unique type of EPDM rubber formulated with optimal characteristics for high-end roofing. Unlike other EPDM rubbers, it has minimal shrinkage, is talc-free, and can be heat welded. It is also tested to be root resistant for use on green roofs. We custom fabricate single sheets to the size of each roof to eliminate the risk and labor of field seaming. Our standard thickness is 60 mil (1.5mm) but 30 mil (0.75mm) and 40 mil (1.0mm) sheet is also available for non-roofing applications.

bonding adhesive

Conservation Technology Bonding Adhesive is a water-base contact adhesive used to bond EPDM to roof decks and surrounding walls. It is applied with a 3/8” nap paint roller at the rate of 125 square feet per gallon. Allow both surfaces to dry until the color changes, carefully mate the surfaces without creating air bubbles, and apply pressure to make the bond. Bonding Adhesive can be stored one year in a cool place that does not freeze. Bonding Adhesive is supplied in gallon pails.

seam tape

Conservation Technology Seam Tape is a 3” wide tacky rubber tape used to make field seams between two rubber sheets. Clean both surfaces with a recommended solvent, apply the tape to one sheet, position the first sheet over the second sheet, pull the release tape, and roll the seam. Seam Tape can be stored in a sealed plastic bag for one year in a cool place that does not freeze. Seam Tape is supplied in 100 ft rolls or cut to any length.

laminate tape

Conservation Technology Laminate Tapes are composites of rubber sheet to seam tape. Use Cured Laminate Tape for seams and repairs; use Uncured Laminate Tape for flashings. Laminate tapes can be stored in a sealed plastic bag for one year in a cool place that does not freeze. 6" Laminate Tapes is supplied in 100 ft rolls or cut to any length; 12" Laminate Tape is supplied in 50 ft rolls or cut to any length.

termination bar tape

Conservation Technology Termination Tape is a tacky uncured rubber tape that measures 1/8” x 3/4”. It is applied to all edges of a roof to make an air and water seal between an EPDM rubber membrane and the underlying building surface. Typically it is compressed with a termination bar, in which case it also seals the termination bar screws. Termination Tapes can be stored in a sealed plastic bag for one year in a cool place that does not freeze. Termination Bar Tape is supplied in 50 ft rolls or cut to any length.

caulk

Conservation Technology Silicone Caulk for EPDM is a unique silicone compound modified to bond to EPDM rubber. It is used to seal around rubber flashings, to seal drain fittings to rubber, and to seal behind Drip-Edge Termination Bars. Always clean with a recommended solvent before application. The standard 11 ounce tubes fits any caulk gun and provides 20 - 30 ft of caulk bead. Silicone caulk can be stored for 6 months in a cool place that does not freeze.

inside corner

outside corner

pipe boots

Conservation Technology Pipe Boots are molded rubber pipe flashings with pre-applied seam tape. The boot is cut above the ridge for the appropriate the pipe size and silicone Caulk is applied around the base flange as well as between the boot and the pipe. Our small boot accomodates pipes 1/2", 1", 2", or 3"; our large boot accomodates pipes 4", 5", or 6". Both include a stainless-steel hose clamp. PIpe Boots can be stored in a sealed plastic bag for one year in a cool place that does not freeze.

termination bars

Conservation Technology Termination Bars clamp the membrane perimeter to prevent air and water entry. Wall Termination bars are rectangular in cross-section; Drip-Edge Termination Bars are angled to kick water away from the roof fascia. Both are 5 ft long and are made of black anodized aluminum with eight holes pre-punched for our black teflon coated stainless-steel screws.

seam roller

After bonding rubber with contact adhesive or flashing with rubber tapes, it is necessary to roll the sheet. To assure adequate pressure, we offer a professional-quality 2” wide steel roller specifically designed for membrane roofing. This is a heavy-duty ball-bearing roller that will give a lifetime of service.

roof drain

The Conservation Technology Roof Drain installs in a roof surface and connects to a drain pipe below. The drain base is injection-molded PVC with a 3”, 4”, or 6” pipe socket for glueing directly to PVC pipe. Caulk is applied between the base and the rubber sheet, and a precisely molded clamping ring is bolted to the base.

scupper drain

The Conservation Technology Scupper Drain installs in a parapet wall and connects to a drain pipe outside or below the parapet. The drain base is cast aluminum with a 2”, 3”, or 4” pipe spigots that connect to PVC pipe with flexible couplings. Caulk is applied between the base and the rubber sheet, and a molded clamping ring is screwed to the base.

compact pedestal

Conservation Technology Compact Paver Pedestals support high-strength concrete roof pavers to make a durable rooftop patio surface where the total height is limited. The paver height can be adjusted slightly by adding shim plates (1/8”) between the top and bottom sections, but when pedestal heights of 1-1/8” or more are acceptable, we recommend using our adjustable pedestals.

adjustable pedestal

Conservation Technology Adjustable Paver Pedestals support high-strength concrete roof pavers to make a durable rooftop patio surface. The paver height can be adjusted by rotating the top and bottom sections to engage the stepped “teeth” at the desired position; for greater heights, several pedestals can be stacked. A single small pedestal adjusts from 1-1/8 to 1-5/8” and a single large pedestal adjusts from 1-5/8 to 2-3/4”. These pedestals are both stronger and less-expensive than other adjustable systems.

pedestal base plate

Conservation Technology Pedestal Base Plates are 8" diameter plastic discs recommended for use under all of our paver pedestals. They allow pedestals to slide when there is differential movement between a paver deck and roof due to expansion and contraction, preventing stress in waterproofing membranes. They also distribute paver loads to prevent pedestal embedment in soft substrates such as asphalt, modified bitumen, or insulation board.