Roofing Supplies Mississauga

Paradise Building Supplies, at 7140 Tranmere Dr, Mississauga, supplies the materials that go under and around the roof covering. That means plywood for decking, insulation, spray foam, house wrap, polythene vapour barrier, sealants and fasteners. We don’t stock shingles or metal roofing panels. Call 905-677-4999 or request a quote.

Be clear about what we sell

Most people searching “roofing supplies” want shingles. For those, a dedicated roofing distributor is the right stop, and a Mississauga roofer will point you to one.

A roof is more than its covering, though. Water, air and heat are managed by the layers underneath, and many of those layers are products Paradise supplies every day.

What we stock for the roof assembly

• Plywood: The sheet material for roof decks, soffits and repairs.
• Insulation: Batt and board products for attics, cathedral ceilings and roof-to-wall connections.
• Spray foam insulation: Air sealing for hard-to-reach gaps around penetrations and rim areas.
• House wrap: The weather barrier on walls that meet the roofline.
• Polythene vapour barrier: Controls moisture movement into the ceiling and attic.
• Caulking and sealant: For joints, trim and small leak repairs.
• Fasteners: Screws and nails for decks, framing and trim.

We carry CertainTeed and ROCKWOOL among our manufacturers.

Why the layers under the roof matter

A roof usually fails slowly. Warm, moist air escapes from the house into the attic, condenses on cold wood, and rots the deck from beneath. Insulation and an intact vapour barrier slow that down. Air sealing the gaps does more than adding thickness alone.

For a Mississauga winter, this means three checks before a re-roof or attic upgrade:

1. Inspect the deck. Replace any soft or stained plywood before new material goes on.
2. Seal the air leaks. Look around vents, chimneys, pot lights and the attic hatch.
3. Add or top up insulation. Check the depth against current guidance from Natural Resources Canada and your inspector.

Your project has to meet the Ontario Building Code, and some work needs a permit from the City of Mississauga. Confirm the insulation values and vapour barrier details with your designer or building department before you order.

How a supplier helps a roofing job

Roofers lose time on missing small items more than on big ones: a half-sheet of plywood, a tube of sealant, the wrong screw length. Buying deck, insulation and sealing materials from a single yard cuts those trips. Our hours are Monday to Friday 7:00 to 5:00 and Saturday 8:00 to 12:00, so crews can load before the day’s work. The company states that orders are turned around within 24 hours, and delivery depends on stock and routing.

Ordering

Send your list through the quote form, or contact us to talk through quantities. If you also need interior board for a renovation, see our Brampton building supplies guide.

FAQs

Does Paradise Building Supplies sell shingles or metal roofing?
No. We supply plywood, insulation, house wrap, vapour barrier, sealants and fasteners for the roof assembly. For shingles or metal panels, contact a roofing distributor.

Where can I buy roof sheathing in Mississauga?
Paradise Building Supplies sells plywood at 7140 Tranmere Dr, Mississauga. Call 905-677-4999 to check current stock.

What insulation do I need for an attic?
It depends on your existing depth and the Ontario Building Code requirements. Ask your designer or inspector for the target value, then call us for matching products.

Do you deliver roof materials to Brampton?
We deliver from our Mississauga yard to job sites in the area. Confirm timing and site access when you order.

Can contractors open a credit account?
Yes. Apply through the credit application.