Product Description
A solvent-borne, black bituminous adhesive. It provides a firm but flexible bond between 5
oC and 50
oC which hardens and softens with changes of temperature.
Roof 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. It may not be used over tar based products.
Application
Apply Roof 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 Roof 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.
Timber Roofs: Lay the first layer of felt laid down in accordance with BS Code of Practice 144: Part 3 and bond subsequent layers with Roof Felt Adhesive.
Lap Adhesive: Roof Felt Adhesive 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.
Gritting: Roof Felt Adhesive can be used as a gritting solution. Be sure to overgrit and tread well in or preferably roll.
Coverage
As a roofing felt / lap adhesive - 1mē per litre.
As a gritting solution - 3mm chips - 1.6mē per litre.
As a gritting solution - 10mm chips - 1.3mē per litre.
Product Data Sheets
Technical Data Sheet Safety Data Sheet
