Master Bitumen Roofing Felt Adhesive 5 litre

FELT ADHESIVE

is a cold applied adhesive for

bonding bituminous roofing felts to asphalt, felt, metal,

wood and concrete. It can also be used for bonding

mineral chippings to bituminous surfaces.

 

All surfaces must be clean, dry and free from loose

material. Dusty and porous surfaces should be primed

with BITUMEN PRIMER
 

Where possible, felt to be laid

should be cut to size and positioned for 24 hours to

assist application

 

Apply

FELT ADHESIVE

to the roof area

with a mop, squeegee or stiff brush. Do

not exceed guideline coverage rates.

Allow the adhesive to become tacky to touch

(typically 15 minutes to 1 hour) then place the

roofing felt into position. The felt should be

lapped: side laps minimum 75mm and end laps

minimum 150mm, and the laps sealed with FELT ADHESIVE.

 When laying the felt it is important to ensure

that no air is trapped underneath, particularly when laid

over a previous layer of felt or other waterproof coating.

Roll with a 15Kg roller or thoroughly brush with a stiff-

broom until good overall contact is established between

felt and adhesive, especially at the laps. NB. If felt is

applied too soon, the drying time of the adhesive will be

extended and the adhesive may ooze out. When felting

upstands, adhesive should be applied to both adhesive and felt.

AS A LAP CEMENT can be used to bond

laps on single layer applications Ensure area to form lap

is completely coated with adhesive and press firmly to

expel air when tacky. The lap should then be nailed with

galvanised clout head nails to secure bond.
 

Drying will vary depending on weather conditions and

time allowed for adhesive to develop a tack. 24 to 48

hours is typical. However, heavy applications will result

in extended drying times.

AS A ROOFING FELT ADHESIVE COVERAGE UP TO 0.8SQ METRES PER LITRE

DRYING TIME AROUND 24 - 36 HOURS DEPENDING ON AMBIENT TEMPERATURES