Table of Contents
What is glass base sheet?
Technical Information. CertainTeed Glasbase Base Sheet is manufactured on an extra strength fiberglass reinforced mat that receives a coating of weathering grade asphalt and is lightly surfaced with a mineral release agent. The fiberglass base mat provides excellent strength and moisture resistance.
What is Basesheet?
Noun. base sheet (plural base sheets) (roofing) an impregnated, saturated, or coated felt placed as the first ply in some low-slope roof systems.
What is base and cap roofing?
Base and cap sheets are a form of sbs rubber or modified bitumen, using a self adhering sheet to create a roofing system for a low slope roof.
What is fiberglass base sheet roofing?
Henry® 604 25# Fiberglass Base Sheet is a heavy duty asphalt coated sheet with a heavyweight, non-woven fiberglass mat, suitable for use in fire retardant membrane assemblies, built-up roofing systems, ply sheets, and base sheets.
What is an SBS membrane?
SBS, also known as styrene-butadiene-styrene, refers to the type of polymers that are added to the asphalt. SBS is a thermoplastic elastomer that’s resistant to harsh abrasions, making it an extremely long-lasting membrane when blended with bitumen, also known as asphalt.
What goes under torch down roofing?
A mat of fiberglass, polyester, or other material is often used as a sturdy core for torch down roofing membranes. Manufacturers also may embed small granules into the top of the membrane to add fire resistance, color options, ultraviolet (UV) radiation protection, or other distinctive characteristics.
What is a ply sheet in roofing?
4. OSB vs Plywood for Roofing. Oriented strand board (OSB) is made by gluing small pieces of wood together and compressing them. Plywood is made from multiple thin sheets of veneer (thin slices of wood) that are cross-laminated and glued together with a hot press.
What is roof base sheet?
A roofing base sheet is the bottom waterproofing layer on a multilayer roofing membrane system. It is made of fiberglass or reinforced polyester, or composite reinforcement and is saturated/coated with modified bitumen asphalt. The base sheet provides waterproofing and a top surface that can bond with the cap sheet.
What is under a roof?
Attic. The space under the roof. The attic must be ventilated to protect the roofing system against excessive heat in summer and warm moist air generated by the house in winter.
What is a SBS roof?
SBS modified bitumen roofing is a material made out of asphalt and synthetic rubber, making it an exceptionally flexible material for flat roofs. This material works best on low-slope commercial roofs, and many manufacturers use glass, polyester, or composite reinforcements.
What is TPO roofing?
What is TPO Roofing? Thermoplastic Polyolefin is a single-ply roofing membrane that is one of the fastest-growing commercial roofing systems on the market. TPO roofing systems are made up of a single layer of synthetics and reinforcing scrim that can be used to cover flat roofs.
What kind of material is a base sheet made of?
It is made of fiberglass or reinforced polyester, or composite reinforcement and is saturated/coated with modified bitumen asphalt. This is asphalt enhanced with plastic or rubber polymer. Base sheets are surfaced with heat-weldable film, sand or a release film depending on the application requirements.
What kind of base sheet to use for roofing?
It is designed to be mechanically fastened over lightweight concrete roof decks or other surfaces as a base for Firestone modified bitumen or built-up roofing systems. The sanded top surface is suitable for installation of the roofing system using a self-adhered base sheet, hot asphalt, Firestone MB Cold Adhesive, or a roofing torch.
What kind of base sheet does CertainTeed use?
CertainTeed Glasbase Base Sheet is manufactured on an extra strength fiberglass reinforced mat that receives a coating of weathering grade asphalt and is lightly surfaced with a mineral release agent. The fiberglass base mat provides excellent strength and moisture resistance.
What can glasbase base sheet be used for?
Glasbase™ Base Sheet. CertainTeed Glasbase Base Sheet is designed for use as a base sheet for both hot and cold applied, inorganic built-up roofing systems. It is suitable for use in the construction of various types of membranes for both new construction and reroofing, over a variety of substrates.