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UIB roof Rayston Spray Foam HFO 40
Notas de ingeniería. No un blog. Roof at the University of the Balearic Islands. Rayston Spray Foam HFO 40 (rigid bicomponente poliuretano foam) is the recorded insulation.
Impermax H Flex (100% solids hot-applied liquid poliuretano membrana) is the impermeabilización. Colodur (single-component aliphatic poliuretano acabado) is the UV sealer. Therefore the specifier writes the commercial name and the chemical type in the same sentence. Foam is not the membrana.
El sistema registrado
First, name a pressure-washed deck so the foam can key. Then name Rayston Spray Foam HFO 40 (rigid bicomponente poliuretano foam) as thermal insulation and a continuous base. After that, name Impermax H Flex (100% solids hot-applied liquid poliuretano) as the joint-free impermeabilización. Colodur is the pigmented aliphatic finish.
Catálogo 2026 lists Rayston Spray Foam HFO 40 as a closed-cell rigid foam. No sustituya Impermax Polyurea H Flex (proyectado en caliente hybrid poliurea) for Impermax H Flex on this clause without a written change. Also, do not invent a kilogram rate. Read consumo from the ficha vigente, then the calculadora.
Cómo especificar the UIB roof build
Name insulation and impermeabilización as separate products. Keep foam, hot-applied poliuretano and aliphatic sealer on the current TDS. A cool colour is a finish, not the membrana.
See thermal and acoustic insulation of roofs, public-building roofs and products. Documentos stay on /documents/.
Official project: kryptonchemical.com — roof impermeabilización at the Balearic Islands University.
Outbound reference: EOTA.
HVAC upstands stay in the same impermeabilización sentence as the field.
These notes do not replace the current TDS, SDS or a written specification. For pack sizes, mix ratio and kg/m², read the ficha vigente, then the calculadora.
