Intumescent non fibrous fire stop blocks (Product 3 ) Gap Fillers fitted with a smoke protection

fitted with a smoke protection seal and a springloaded flap

around the letter box

businesses

Open out the cover once inside the ceiling

ensuring by pressing in with fingers

Intumescent non fibrous fire stop blocks (Product 3 ) Gap Fillers fitted with a smoke protectionFire stopping blocks designed with non fibrous sponge. Fixing fire stopping blocks in ceilings, walls or floors creates a temporary or permanent fire stopping barrier. Clad with foil and intumescent strips. Blocks expand in opposite directions during a fire, locking in place to seal the void. Provides both an effective fire and smoke barrier to prevent firespread and dangerous smoke inhalation. Self adhesive strips on the sides join blocks together